This presentation discusses formwork construction techniques. Formwork is a temporary mold used to contain and shape wet concrete until it hardens. It must be strong enough to support the weight of wet concrete and other loads. Common materials for formwork include timber and steel. Proper formwork design considers containment, strength, leakage resistance, accuracy, ease of handling, finish, access for concrete, and economy. Formwork is used for walls, columns, slabs, beams, stairs, chimneys, and other structural elements. Factors that influence when formwork can be removed include cement type, concrete mix ratio, and weather conditions. Maintenance and costs of formwork are also discussed.
Industrialized building systems (IBS) refer to building construction techniques that involve prefabricating building components off-site and assembling them with minimal work on-site. The document discusses IBS, providing a definition, characteristics, types including frame, panel and box systems. Benefits of IBS are highlighted such as reduced labor, waste and faster completion times. Challenges to adopting IBS in Malaysia are also examined, including a lack of expertise and the need for regulatory incentives to promote usage. Modular coordination is discussed as an important factor for effective IBS application through standardizing building measurements.
Formwork is a temporary mold used to contain poured concrete until it cures and can support itself. It needs to be strong enough to support the weight of wet concrete and withstand pouring and compaction loads. New materials like steel and plastics are now used for formwork in addition to wood. Slipforming allows for continuous vertical pouring of concrete structures like building cores without relying on external support, by using a formwork that rises slowly on its own as concrete is added.
A presentation with exhaustive information about the general idea of formwork, the various types, the newest introductions and a comparative study between the conventional and modern-day formwork.
It also includes the study of causes of failure of formwork and the safety measures to be taken for preventing failure.
The document discusses steel formwork used for constructing concrete structures. Steel formwork consists of panels made from steel plates reinforced with steel angles. It has advantages over wooden formwork like strength, durability, and producing a smooth concrete surface. The time required to remove formwork depends on factors like cement type and weather conditions. Steel formwork requires maintenance like leveling plates but can be reused numerous times on projects.
Project Report on Concrete Mix Design of Grade M35Gyan Prakash
This document provides a project report on the concrete mix design for grade M-35 concrete. It includes an introduction to concrete mix design objectives and considerations. It then describes the Indian Standard method for mix design in six steps: 1) selecting target compressive strength, 2) selecting water-cement ratio, 3) estimating air content, 4) selecting water content and fine-coarse aggregate ratio, 5) calculating cement content, and 6) calculating aggregate content. The report also includes test results for materials and mixes.
This document discusses the durability and permeability of concrete. It defines durability as the ability to last a long time without significant deterioration. Permeability is defined as the property that governs the rate of flow of a fluid into a porous solid. The document discusses factors that affect the durability and permeability of concrete such as water-cement ratio, cement properties, aggregate type and quality, curing methods, and use of admixtures. Maintaining a low water-cement ratio and limiting chloride and sulfate levels in concrete are important for ensuring durability.
Formwork is used to create structures out of concrete that is poured into molds. It can be made from materials like steel, wood, aluminum, or prefabricated forms. Construction of formwork takes up 20-25% of total structure costs and involves supporting structures and molds. Proper formwork is designed to be easily removable, economical, leakproof, durable, rigid, provide smooth surfaces, be strong, and have adequate supports. Common types include conventional timber formwork, engineered prefabricated formwork, and modern systems like flying forms. Materials used include steel, plywood, plastic, and aluminum. Proper bracing and construction is needed to avoid failures from improper stripping, inadequate bracing, vibration
Industrialized building systems (IBS) refer to building construction techniques that involve prefabricating building components off-site and assembling them with minimal work on-site. The document discusses IBS, providing a definition, characteristics, types including frame, panel and box systems. Benefits of IBS are highlighted such as reduced labor, waste and faster completion times. Challenges to adopting IBS in Malaysia are also examined, including a lack of expertise and the need for regulatory incentives to promote usage. Modular coordination is discussed as an important factor for effective IBS application through standardizing building measurements.
Formwork is a temporary mold used to contain poured concrete until it cures and can support itself. It needs to be strong enough to support the weight of wet concrete and withstand pouring and compaction loads. New materials like steel and plastics are now used for formwork in addition to wood. Slipforming allows for continuous vertical pouring of concrete structures like building cores without relying on external support, by using a formwork that rises slowly on its own as concrete is added.
A presentation with exhaustive information about the general idea of formwork, the various types, the newest introductions and a comparative study between the conventional and modern-day formwork.
It also includes the study of causes of failure of formwork and the safety measures to be taken for preventing failure.
The document discusses steel formwork used for constructing concrete structures. Steel formwork consists of panels made from steel plates reinforced with steel angles. It has advantages over wooden formwork like strength, durability, and producing a smooth concrete surface. The time required to remove formwork depends on factors like cement type and weather conditions. Steel formwork requires maintenance like leveling plates but can be reused numerous times on projects.
Project Report on Concrete Mix Design of Grade M35Gyan Prakash
This document provides a project report on the concrete mix design for grade M-35 concrete. It includes an introduction to concrete mix design objectives and considerations. It then describes the Indian Standard method for mix design in six steps: 1) selecting target compressive strength, 2) selecting water-cement ratio, 3) estimating air content, 4) selecting water content and fine-coarse aggregate ratio, 5) calculating cement content, and 6) calculating aggregate content. The report also includes test results for materials and mixes.
This document discusses the durability and permeability of concrete. It defines durability as the ability to last a long time without significant deterioration. Permeability is defined as the property that governs the rate of flow of a fluid into a porous solid. The document discusses factors that affect the durability and permeability of concrete such as water-cement ratio, cement properties, aggregate type and quality, curing methods, and use of admixtures. Maintaining a low water-cement ratio and limiting chloride and sulfate levels in concrete are important for ensuring durability.
Formwork is used to create structures out of concrete that is poured into molds. It can be made from materials like steel, wood, aluminum, or prefabricated forms. Construction of formwork takes up 20-25% of total structure costs and involves supporting structures and molds. Proper formwork is designed to be easily removable, economical, leakproof, durable, rigid, provide smooth surfaces, be strong, and have adequate supports. Common types include conventional timber formwork, engineered prefabricated formwork, and modern systems like flying forms. Materials used include steel, plywood, plastic, and aluminum. Proper bracing and construction is needed to avoid failures from improper stripping, inadequate bracing, vibration
This document summarizes a final year project presentation evaluating factors and remedies for bonding between old and new concrete layers. The presentation examines factors that lead to non-monolithic behavior at interfaces, such as differential stiffness and shrinkage. It also explores factors that affect bond strength, including moisture content, surface roughness, and age difference. Various remedies to strengthen bonding are proposed, including increasing surface roughness, using bonding agents like epoxy and latex, and nailing. Different tests to evaluate bond strength are described, such as bending, direct shear, direct tension, and slant shear tests. The objectives of the project are to evaluate approaches to ensure monolithic behavior and effective bonding between concrete layers.
The document provides details on the methodology and specifications for various items of construction work. It summarizes construction methods for items like earthwork, mortars, concrete work, finishing, repairs to buildings, road work, sanitary installation, water supply and drainage. It includes power point presentations on these topics based on CPWD specifications. The presentations are useful for students, engineers and construction departments to understand specifications, standards and methodology. It also lists relevant Indian Standards codes for materials and construction methods.
Concrete is a widely used construction material consisting of cement, water, and aggregates. The strength of concrete is specified using its 28-day cube strength in N/sq.mm. Formwork is used to mold wet concrete into desired shapes and allow it to cure. Formwork design involves choosing traditional or systematic approaches using wood or steel components like props, beams, sheathing to form columns, walls, and beams until the concrete gains sufficient strength. Proper formwork is important for quality concrete finish and structural integrity.
This document discusses the split tensile strength test for concrete. It begins by explaining that the split tensile strength test is an indirect method for determining the tensile strength of concrete using cylindrical specimens. It then describes the procedure for the test, which involves placing a cylinder between loading plates and applying an increasing load until failure. The maximum load at failure is used to calculate the splitting tensile strength of the concrete. The document provides details on specimen preparation, curing, testing apparatus, and calculations.
This document discusses repairs made to an old building located in Sullia, India that was experiencing structural issues due to water damage. Inspections found cracks in walls and ceilings, corrosion of reinforcement, and water leaks. Repair methods included tracing and repairing cracks with mortar and grout, strengthening columns with steel jacketing, repairing reinforced concrete, and replastering and coating external walls. The repairs addressed water damage issues and strengthened the structure so it could support an additional floor.
Rehabilitation of concrete structures, surface treatmentShivRam G Krishnan
This presentation was part of IIT Bombay course Repair and Rehabilitation of Structure. This contains details of Surface preparation of structure, bonding agents and placement techniques
Unit 5 maintenance and repair methods for rcc mrsAbhay Abhale
The document discusses various maintenance and repair methods for reinforced concrete cracks (RCC). It describes common locations of cracks in RCC columns, beams, slabs, and footings. These include diagonal, splitting, horizontal, and corrosion cracks in columns; shear and bending cracks in beams; and shrinkage cracks in slabs. It also lists causes of cracks like design/construction errors, chemical/mechanical damage, and dampness. Methods to repair cracks include epoxy injection, grouting, stitching, rebaring, and shotcrete. Mud phuska and lime concrete are techniques to repair dampness in roof slabs by providing insulation and waterproofing.
This document provides information about slip formwork construction for chimneys. It begins with an introduction to slip formwork and its use for building tall structures like silos and grain elevators in the early 20th century. It then discusses the process of slip forming involving a moving form that is jacked upwards as concrete is poured in. The document outlines the key steps, components, structural concerns and provides an example case study of slip forming used at the Kudankulam Nuclear Power Plant in India.
The document discusses repair techniques for masonry structures like brick buildings. It describes common types of cracks that occur in masonry, such as vertical cracks at corners or around openings. Damage can be caused by aging, construction errors, chemicals, and other factors. Repair techniques discussed include using sand/cement mortar, polymer modified mortars, epoxy resins, epoxy injection into small cracks, and crack stitching to reinforce large cracks. The conclusion advocates for cost-effective repair and retrofitting of damaged structures rather than full reconstruction.
This document discusses structural steel construction methods. It describes how structural steel members like beams, columns, girders, and trusses are erected and secured together to form structural frameworks. It discusses different construction methods like beam and column construction, long span construction, and wall bearing construction. It also covers structural steel components like pre-engineered metal buildings, open web steel joists, bridging, braces, and tie rods. Additionally, it discusses fastening systems using bolts and welds and metal decking and paneling used in construction.
It is used as a mould for a structure in which fresh concrete is poured only to harden subsequently.
formwork for concrete slab
beam formwork
steel formwork
doka h20
types of formwork
formwork for concrete
what is formwork in construction
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plywood disadvantages
advantage plywood
advantages and disadvantages of wood
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mdf advantages and disadvantages
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wiki advantages and disadvantages
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The document provides guidelines for repair and rehabilitation of existing reinforced concrete buildings. It discusses causes of concrete deterioration like permeability, aggressive agents, and condition surveys. Non-destructive tests are recommended to evaluate concrete quality, cracking, and corrosion. The approach involves identifying deterioration causes, assessing damage extent, and selecting appropriate repair materials and methods to rehabilitate structures in a systematic and cost-effective manner.
قازانج و خراپییەکانی کۆنکریت
Concrete is a composite material composed of coarse aggregate bonded together with a fluid cement that hardens over time. Most concretes used are lime-based concretes such as Portland cement concrete or concretes made with other hydraulic cements, such as ciment fondu. However, asphalt concrete, which is frequently used for road surfaces, is also a type of concrete, where the cement material is bitumen, and polymer concretes are sometimes used where the cementing material is a polymer.
When aggregate is mixed together with dry Portland cement and water, the mixture forms a fluid mass that is easily molded into shape. The cement reacts chemically with the water and other ingredients to form a hard matrix that binds the materials together into a durable stone-like material that has many uses.[2] Often, additives (such as pozzolans or superplasticizers) are included in the mixture to improve the physical properties of the wet mix or the finished material. Most concrete is poured with reinforcing materials (such as rebar) embedded to provide tensile strength, yielding reinforced concrete.
Famous concrete structures include the Hoover Dam, the Panama Canal, and the Roman Pantheon. The earliest large-scale users of concrete technology were the ancient Romans, and concrete was widely used in the Roman Empire. The Colosseum in Rome was built largely of concrete, and the concrete dome of the Pantheon is the world's largest unreinforced concrete dome.[3] Today, large concrete structures (for example, dams and multi-storey car parks) are usually made with reinforced concrete.
After the Roman Empire collapsed, use of concrete became rare until the technology was redeveloped in the mid-18th century. Today, concrete is the most widely used man-made material (measured by tonnage).
This document provides an introduction to concrete, discussing its history, composition, properties, and manufacturing process. Concrete has been used widely in construction for millennia, forming the basis of modern infrastructure like roads, buildings, and dams. It is a composite material consisting of aggregates like sand and stone bound together by a hardened cement matrix. The cement produces a crystalline structure when mixed with water that binds the aggregates and provides strength and durability to the final concrete.
DETAILED STUDY OF FOAM CONCRETE
1- MATERIALS USED
2- MACHINE USED( HAND MAKING WORKABLE EQUIPMENT FOR MIXING)
3-TESTING PROCEDURE
4- YOU GUYZ CAN ALSO LEARN THROUGH THE PHOTOGRAPHS
The document provides information on various topics related to civil engineering construction projects. It defines key roles on a construction site such as senior engineer, site engineer, contractor, and laborers. It also discusses concrete mix ratios, honeycombing in concrete, water damage to concrete, curing methods, foundation types, cement types, and tests to check brick and cement quality. Common formulas for steel weight and void ratio are also included.
This document discusses quality assurance for concrete construction. It outlines three key components of a quality management system: 1) a quality assurance plan, 2) quality control process, and 3) quality audits. The quality assurance plan establishes organizational responsibilities, control measures, acceptance criteria, and documentation requirements. Quality control ensures conformance to specifications. Quality audits verify that quality assurance and control programs are properly implemented. Factors that affect concrete properties like strength, permeability, cracking and durability are also summarized.
Formwork is a temporary mold used to contain and shape wet concrete until it hardens. It is commonly made from timber or steel. Formwork must balance requirements like containment, strength, resistance to leakage, accuracy, ease of handling, finish, access for concrete, and economy. It must safely support the weight of wet concrete and other loads until the concrete sets. Formwork design considers quality, safety, and minimizing costs through reuse. Forms are designed according to intended structural elements like walls, columns, beams, slabs, stairs, and more.
Formwork(Shuttering), Importance, Qualities of Formwork,types,Major objectives considered in formwork, Requirements of formwork,Formwork for Wall,Formwork for Column,Formwork for Slabs & beams ,Lintel or Beam Formwork, FORMWORK FOR SLAB,FORMWORK FOR STAIRS,FORMWORK FOR SPIRAL STAIRS,FORMWORK FOR CHIMNEYS,Removal of formwork,Time of Removal of formwork,Comparison between Steel and Timber Formwork,Cantilever slab,Maintenance of formwork,Cost of formwork,Advantages of steel form work,LOADS ON FORMWORK
This document summarizes a final year project presentation evaluating factors and remedies for bonding between old and new concrete layers. The presentation examines factors that lead to non-monolithic behavior at interfaces, such as differential stiffness and shrinkage. It also explores factors that affect bond strength, including moisture content, surface roughness, and age difference. Various remedies to strengthen bonding are proposed, including increasing surface roughness, using bonding agents like epoxy and latex, and nailing. Different tests to evaluate bond strength are described, such as bending, direct shear, direct tension, and slant shear tests. The objectives of the project are to evaluate approaches to ensure monolithic behavior and effective bonding between concrete layers.
The document provides details on the methodology and specifications for various items of construction work. It summarizes construction methods for items like earthwork, mortars, concrete work, finishing, repairs to buildings, road work, sanitary installation, water supply and drainage. It includes power point presentations on these topics based on CPWD specifications. The presentations are useful for students, engineers and construction departments to understand specifications, standards and methodology. It also lists relevant Indian Standards codes for materials and construction methods.
Concrete is a widely used construction material consisting of cement, water, and aggregates. The strength of concrete is specified using its 28-day cube strength in N/sq.mm. Formwork is used to mold wet concrete into desired shapes and allow it to cure. Formwork design involves choosing traditional or systematic approaches using wood or steel components like props, beams, sheathing to form columns, walls, and beams until the concrete gains sufficient strength. Proper formwork is important for quality concrete finish and structural integrity.
This document discusses the split tensile strength test for concrete. It begins by explaining that the split tensile strength test is an indirect method for determining the tensile strength of concrete using cylindrical specimens. It then describes the procedure for the test, which involves placing a cylinder between loading plates and applying an increasing load until failure. The maximum load at failure is used to calculate the splitting tensile strength of the concrete. The document provides details on specimen preparation, curing, testing apparatus, and calculations.
This document discusses repairs made to an old building located in Sullia, India that was experiencing structural issues due to water damage. Inspections found cracks in walls and ceilings, corrosion of reinforcement, and water leaks. Repair methods included tracing and repairing cracks with mortar and grout, strengthening columns with steel jacketing, repairing reinforced concrete, and replastering and coating external walls. The repairs addressed water damage issues and strengthened the structure so it could support an additional floor.
Rehabilitation of concrete structures, surface treatmentShivRam G Krishnan
This presentation was part of IIT Bombay course Repair and Rehabilitation of Structure. This contains details of Surface preparation of structure, bonding agents and placement techniques
Unit 5 maintenance and repair methods for rcc mrsAbhay Abhale
The document discusses various maintenance and repair methods for reinforced concrete cracks (RCC). It describes common locations of cracks in RCC columns, beams, slabs, and footings. These include diagonal, splitting, horizontal, and corrosion cracks in columns; shear and bending cracks in beams; and shrinkage cracks in slabs. It also lists causes of cracks like design/construction errors, chemical/mechanical damage, and dampness. Methods to repair cracks include epoxy injection, grouting, stitching, rebaring, and shotcrete. Mud phuska and lime concrete are techniques to repair dampness in roof slabs by providing insulation and waterproofing.
This document provides information about slip formwork construction for chimneys. It begins with an introduction to slip formwork and its use for building tall structures like silos and grain elevators in the early 20th century. It then discusses the process of slip forming involving a moving form that is jacked upwards as concrete is poured in. The document outlines the key steps, components, structural concerns and provides an example case study of slip forming used at the Kudankulam Nuclear Power Plant in India.
The document discusses repair techniques for masonry structures like brick buildings. It describes common types of cracks that occur in masonry, such as vertical cracks at corners or around openings. Damage can be caused by aging, construction errors, chemicals, and other factors. Repair techniques discussed include using sand/cement mortar, polymer modified mortars, epoxy resins, epoxy injection into small cracks, and crack stitching to reinforce large cracks. The conclusion advocates for cost-effective repair and retrofitting of damaged structures rather than full reconstruction.
This document discusses structural steel construction methods. It describes how structural steel members like beams, columns, girders, and trusses are erected and secured together to form structural frameworks. It discusses different construction methods like beam and column construction, long span construction, and wall bearing construction. It also covers structural steel components like pre-engineered metal buildings, open web steel joists, bridging, braces, and tie rods. Additionally, it discusses fastening systems using bolts and welds and metal decking and paneling used in construction.
It is used as a mould for a structure in which fresh concrete is poured only to harden subsequently.
formwork for concrete slab
beam formwork
steel formwork
doka h20
types of formwork
formwork for concrete
what is formwork in construction
building formwork
plywood disadvantages
advantage plywood
advantages and disadvantages of wood
best plywood for formwork
plywood formwork for concrete
mdf advantages and disadvantages
examples of advantages and disadvantages
advantage steel and construction
advantages of steel
disadvantages of steel structures
examples of advantages and disadvantages
advantages and disadvantages of surveys
wiki advantages and disadvantages
steel formwork design
steel formwork system
The document provides guidelines for repair and rehabilitation of existing reinforced concrete buildings. It discusses causes of concrete deterioration like permeability, aggressive agents, and condition surveys. Non-destructive tests are recommended to evaluate concrete quality, cracking, and corrosion. The approach involves identifying deterioration causes, assessing damage extent, and selecting appropriate repair materials and methods to rehabilitate structures in a systematic and cost-effective manner.
قازانج و خراپییەکانی کۆنکریت
Concrete is a composite material composed of coarse aggregate bonded together with a fluid cement that hardens over time. Most concretes used are lime-based concretes such as Portland cement concrete or concretes made with other hydraulic cements, such as ciment fondu. However, asphalt concrete, which is frequently used for road surfaces, is also a type of concrete, where the cement material is bitumen, and polymer concretes are sometimes used where the cementing material is a polymer.
When aggregate is mixed together with dry Portland cement and water, the mixture forms a fluid mass that is easily molded into shape. The cement reacts chemically with the water and other ingredients to form a hard matrix that binds the materials together into a durable stone-like material that has many uses.[2] Often, additives (such as pozzolans or superplasticizers) are included in the mixture to improve the physical properties of the wet mix or the finished material. Most concrete is poured with reinforcing materials (such as rebar) embedded to provide tensile strength, yielding reinforced concrete.
Famous concrete structures include the Hoover Dam, the Panama Canal, and the Roman Pantheon. The earliest large-scale users of concrete technology were the ancient Romans, and concrete was widely used in the Roman Empire. The Colosseum in Rome was built largely of concrete, and the concrete dome of the Pantheon is the world's largest unreinforced concrete dome.[3] Today, large concrete structures (for example, dams and multi-storey car parks) are usually made with reinforced concrete.
After the Roman Empire collapsed, use of concrete became rare until the technology was redeveloped in the mid-18th century. Today, concrete is the most widely used man-made material (measured by tonnage).
This document provides an introduction to concrete, discussing its history, composition, properties, and manufacturing process. Concrete has been used widely in construction for millennia, forming the basis of modern infrastructure like roads, buildings, and dams. It is a composite material consisting of aggregates like sand and stone bound together by a hardened cement matrix. The cement produces a crystalline structure when mixed with water that binds the aggregates and provides strength and durability to the final concrete.
DETAILED STUDY OF FOAM CONCRETE
1- MATERIALS USED
2- MACHINE USED( HAND MAKING WORKABLE EQUIPMENT FOR MIXING)
3-TESTING PROCEDURE
4- YOU GUYZ CAN ALSO LEARN THROUGH THE PHOTOGRAPHS
The document provides information on various topics related to civil engineering construction projects. It defines key roles on a construction site such as senior engineer, site engineer, contractor, and laborers. It also discusses concrete mix ratios, honeycombing in concrete, water damage to concrete, curing methods, foundation types, cement types, and tests to check brick and cement quality. Common formulas for steel weight and void ratio are also included.
This document discusses quality assurance for concrete construction. It outlines three key components of a quality management system: 1) a quality assurance plan, 2) quality control process, and 3) quality audits. The quality assurance plan establishes organizational responsibilities, control measures, acceptance criteria, and documentation requirements. Quality control ensures conformance to specifications. Quality audits verify that quality assurance and control programs are properly implemented. Factors that affect concrete properties like strength, permeability, cracking and durability are also summarized.
Formwork is a temporary mold used to contain and shape wet concrete until it hardens. It is commonly made from timber or steel. Formwork must balance requirements like containment, strength, resistance to leakage, accuracy, ease of handling, finish, access for concrete, and economy. It must safely support the weight of wet concrete and other loads until the concrete sets. Formwork design considers quality, safety, and minimizing costs through reuse. Forms are designed according to intended structural elements like walls, columns, beams, slabs, stairs, and more.
Formwork(Shuttering), Importance, Qualities of Formwork,types,Major objectives considered in formwork, Requirements of formwork,Formwork for Wall,Formwork for Column,Formwork for Slabs & beams ,Lintel or Beam Formwork, FORMWORK FOR SLAB,FORMWORK FOR STAIRS,FORMWORK FOR SPIRAL STAIRS,FORMWORK FOR CHIMNEYS,Removal of formwork,Time of Removal of formwork,Comparison between Steel and Timber Formwork,Cantilever slab,Maintenance of formwork,Cost of formwork,Advantages of steel form work,LOADS ON FORMWORK
This document discusses formwork, which is a mould used to contain and shape concrete until it hardens. Formwork is commonly made from timber or steel. It must be strong enough to support the weight of wet concrete and other loads without excessive deflection. Proper formwork design considers containment, strength, water tightness, accuracy, ease of handling, finish quality, and cost. The document describes formwork requirements and objectives, as well as details for common structural elements like walls, columns, beams, slabs, stairs, and removal procedures.
Formwork is a temporary structure used to support wet concrete until it cures and can support itself. It is usually constructed from wood or steel. Formwork must be strong yet easy to assemble and disassemble. It must safely support the weight of wet concrete without leaking or allowing deflection. Formwork is designed according to factors like the concrete mix design, structural member shape, loading conditions, and required surface finish. Formwork is an important but costly part of concrete construction.
Formwork is used to pour concrete into molds to form structures. It can be made from steel, wood, aluminum, or prefabricated forms. Good formwork is easy to remove, economical, leak-proof, rigid, durable, and provides smooth concrete surfaces. Formwork design considers categories like conventional, modern panel systems, and prefabricated modular systems. Steel, plywood, plastic, and aluminum are common materials. Proper bracing and erection sequences are needed to construct columns, beams, walls, stairs, and avoid failures during pouring.
This document defines formwork and its requirements, categories, types of materials used, and construction process. Formwork is a temporary mold into which concrete is poured and shaped. It must be strong enough to support the weight of wet concrete and loads. There are traditional, engineered, and modern modular types. Common materials are timber, steel, plastic, and aluminum. Proper construction and removal of formwork is important for quality, safety, and economy of concrete structures.
Formwork Presentation for Construction TechnologyI'mMiss Lily
1. Formwork refers to the temporary structure used to support wet concrete until it is cured and can support itself. Common materials used include wood, steel, aluminum, plastic and plywood.
2. A good formwork must be water tight, strong, and reusable while also considering factors like quality, safety, and economy. It must be able to withstand loads, retain its shape, and be removed without damaging the concrete.
3. Different types of formworks are used for columns, beams, slabs, and other structural elements. Column formwork typically consists of side and end planks joined by yokes and bolts. Beam formworks use thick timber or plywood and are supported by props.
Formwork is a temporary mold into which concrete is poured and shaped. It must be strong enough to support the weight of wet concrete and construction loads. Common materials for formwork include timber, steel, plastic, and aluminum. Proper construction and removal of formwork is important for quality, safety, and economy of concrete structures. Failure to properly brace, support, or remove formwork can lead to collapse during construction.
All you need to know about Construction FormworkAnkit Singhai
Formwork is temporary structure used to support and contain wet concrete until it hardens. It molds the concrete into the desired shape and controls its position. Formwork materials include lumber, plywood, steel, and plastics. Proper formwork design can significantly reduce construction costs. Formwork accounts for a large portion of the total cost of a concrete structure.
Formwork is used to support wet concrete until it cures and can support itself. It must be strong yet allow concrete to be placed accurately to shape. Common materials include timber, plywood, steel, aluminum and plastics. Proper formwork design considers strength, containment, leakage prevention, finish quality, and economics. Specialized formwork like climbing, sliding, and tunnel forms improve efficiency for structures like walls, columns, and buildings. Proper formwork selection and construction is essential for quality, safety, and cost-effectiveness in concrete projects.
This document provides information on formwork used in concrete construction. It defines formwork and lists its common materials as steel and wood. It describes the major objectives in formwork as quality, safety, and economy. It discusses the various types of formwork including temporary and permanent structures. It also provides details on formwork for different structural elements like walls, columns, slabs, beams, stairs, and chimneys. Finally, it covers topics like requirements, loads, design, and maintenance of formwork.
Formwork is a temporary structure used to hold wet concrete in desired shape until it hardens. It is classified based on size, material, and operation. Requirements include strength, water resistance, smooth surfaces. Common formwork includes foundations, walls, columns, slabs, beams, stairs using timber, steel, aluminum, plastic. Removal timing depends on concrete type. Cost is 30-60% of concrete cost. Advanced systems like REVOLA and LOGICA use steel/plywood/polymer facing for crane-lifted walls and columns, withstanding high pressures.
The document provides information about formwork, which is a temporary structure used to support wet concrete until it is cured. It defines formwork and discusses its qualities, types, details for different structural elements, installation and removal times. It also addresses the costs associated with formwork and advantages of steel formwork over wood. Scaffolding, shoring and underpinning methods - which are also temporary structures - are briefly defined.
This document provides information on formwork used for constructing concrete structures. It discusses the different types of formwork including wooden, plywood, steel and combined forms. It also describes requirements for proper formwork like being waterproof and strong enough to support loads. Common formwork systems are described for columns, beams, slabs, stairs and walls. Standards for stripping formwork from concrete structures are also outlined according to the Indian Standard code.
Form work for R.C.C. Wall, slab, beam and column, centering for arches
of large spans and dams, design features for temporary works, slip
formwork, False work for Bridges
Formwork is used as a temporary mold for pouring concrete that will harden into the desired structural shape. There are various types of formwork classified by material (timber, plywood, steel, aluminum, plastic, magnesium) or purpose (slab formwork, beam formwork, column formwork). Proper formwork design is important to withstand loads, retain shape, prevent leakage, and allow removal without damage to concrete. The order and method of removing formwork is also important for safety.
various types of scffolding and formwork with underpiningkuldeep361335
The document discusses formwork, scaffolding, shoring, and underpinning used for construction projects. It defines each term and describes the common materials and components used. Formwork provides temporary support for wet concrete and comes in wood or steel varieties. Scaffolding creates safe working platforms at various heights using standards, ledgers, and platforms. Shoring supports unstable structures through methods like horizontal, vertical, and inclined bracing. Underpinning strengthens existing foundations by adding new deeper foundations below.
This document provides information on formwork, scaffolding, and shoring used for construction projects. It defines each term and discusses the types, materials, and uses. For formwork, it describes the qualities, types including steel and wood, and details for foundations, walls, columns, slabs, beams, and stairs. It also addresses removal times, maintenance, costs, and advantages of steel formwork. For scaffolding, it outlines types such as single, double, ladder, cantilever, suspended, and steel/tubular along with their components. Finally, it defines shoring and describes methods for horizontal, vertical, and inclined shoring as well as underpinning techniques.
Online train ticket booking system project.pdfKamal Acharya
Rail transport is one of the important modes of transport in India. Now a days we
see that there are railways that are present for the long as well as short distance
travelling which makes the life of the people easier. When compared to other
means of transport, a railway is the cheapest means of transport. The maintenance
of the railway database also plays a major role in the smooth running of this
system. The Online Train Ticket Management System will help in reserving the
tickets of the railways to travel from a particular source to the destination.
Cricket management system ptoject report.pdfKamal Acharya
The aim of this project is to provide the complete information of the National and
International statistics. The information is available country wise and player wise. By
entering the data of eachmatch, we can get all type of reports instantly, which will be
useful to call back history of each player. Also the team performance in each match can
be obtained. We can get a report on number of matches, wins and lost.
An In-Depth Exploration of Natural Language Processing: Evolution, Applicatio...DharmaBanothu
Natural language processing (NLP) has
recently garnered significant interest for the
computational representation and analysis of human
language. Its applications span multiple domains such
as machine translation, email spam detection,
information extraction, summarization, healthcare,
and question answering. This paper first delineates
four phases by examining various levels of NLP and
components of Natural Language Generation,
followed by a review of the history and progression of
NLP. Subsequently, we delve into the current state of
the art by presenting diverse NLP applications,
contemporary trends, and challenges. Finally, we
discuss some available datasets, models, and
evaluation metrics in NLP.
Sri Guru Hargobind Ji - Bandi Chor Guru.pdfBalvir Singh
Sri Guru Hargobind Ji (19 June 1595 - 3 March 1644) is revered as the Sixth Nanak.
• On 25 May 1606 Guru Arjan nominated his son Sri Hargobind Ji as his successor. Shortly
afterwards, Guru Arjan was arrested, tortured and killed by order of the Mogul Emperor
Jahangir.
• Guru Hargobind's succession ceremony took place on 24 June 1606. He was barely
eleven years old when he became 6th Guru.
• As ordered by Guru Arjan Dev Ji, he put on two swords, one indicated his spiritual
authority (PIRI) and the other, his temporal authority (MIRI). He thus for the first time
initiated military tradition in the Sikh faith to resist religious persecution, protect
people’s freedom and independence to practice religion by choice. He transformed
Sikhs to be Saints and Soldier.
• He had a long tenure as Guru, lasting 37 years, 9 months and 3 days
This is an overview of my current metallic design and engineering knowledge base built up over my professional career and two MSc degrees : - MSc in Advanced Manufacturing Technology University of Portsmouth graduated 1st May 1998, and MSc in Aircraft Engineering Cranfield University graduated 8th June 2007.
Impartiality as per ISO /IEC 17025:2017 StandardMuhammadJazib15
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2. What is Formwork?
o It should be capable of carrying all imposed dead and live loads
apart from its own weight.
o Formwork is a mould including all supporting structures, used to
shape and support the concrete until it attains sufficient strength to
carry its own weight.
Formwork is commonly made of
o Steel
o Timber
5. Formwork has been in use since the beginning of concrete
construction.
New materials such as steel, plastics and fibreglass are used in
formwork.
Greater attention is being given to the design, fabrication,
erection and dismantling of formwork
Formwork is designed according to The ACI document SP-4.
6. Qualities of Formwork
It should be water tight.
It should be strong.
It can be reusable.
Its contact surface should be uniform.
It should be according to the size of member.
7. • In order to successfully carry out
its function, formwork must achieve
a balance of following requirements:
• Containment
• Strength
• Resistance To Leakage
• Accuracy
• Ease Of Handling
• Finish And Reuse Potential
• Access For Concrete
• Economy
8. • Containment: formwork must be capable of shaping and
supporting the fluid concrete until it cures.
• Strength: formwork must be capable of safely withstanding
without distortion or danger the dead weight of the fluid
concrete is placed on it, labour weight, equipment weight and
any environmental loadings.
9. • Ease of Handling: form panels and units should be designed
so that their maximum size does not exceed that which can be
easily handled by hand or mechanical means.
– In addition all formwork must also be designed and
constructed to include facilities for adjustments, levelling,
easing and striking without damage to the form work or
concrete.
10. • Economy: all the formwork is very expensive. On average about 35%
of the total cost of any finished concrete unit or element can be
attributed to its formwork; of this just over 40% can be taken for
material for formwork and 60% for labour.
– The formwork designer must therefore not only consider the
maximum number of times that any form can be reused, but also
produce a design that will minimize the time taken for erection and
striking.
12. Quality:
Forms must be designed and built with sufficient stiffness and accuracy so that
the size, shape, position, and finish of the cast concrete are maintained.
Safety:
Forms must be built sufficient strength and factor of safety so that they have
the capable of all supporting loads.
Economy:
Forms must be built efficiently, minimizing time and cost.
13. Requirements of
formwork: Material should be cheap and re usable,
It should be practically water proof, so that it should not
absorb water from concrete,
Swelling and shrinkage should be minimum,
Strong enough to with stand all external loads,
Deflection should be minimum,
Surface should be smooth, and afford easy striping,
Light in weight, so that easy to transfer,
Joints should be stiff, so that lateral deformation and leak is
minimum .
14. Three stages in the process :
a) Assembly and erection .
b) Concrete placement.
c) Stripping and dismantling.
15. • Formwork detail for different
structural members
In concrete construction formwork is
commonly provided for the following structural
members.
o Wall
o Column
o Slabs & Beams
o Stairs
o Chimneys
o Water tanks
o Cooling Towers
16. • Formwork for Wall
It consists of
• Timber sheeting
• Vertical posts
• Horizontal members
• Rackers
• Stakes
• Wedges
After completing one side of
formwork reinforcement is
provided at the place then the
second side formwork is
provided.
17. • Formwork for Column
• It consists of the following
– Side & End Planks
– Yoke
– Nut & Bolts
• Two end & two side planks
are joined by the yokes and
bolts.
19. • Formwork for Slabs & beams:• It consists of
– Sole plates
– Wedges
– Props
– Head tree
– Planks
– Batten
– Ledgers
• Beam formwork rests
on head tree
• Slab form work rests on
battens and joists
• If prop height are more
than 8’ provide
horizontal braces.
25. • FORMWORK FOR CHIMNEYS:
For tall chimneys two types of forms
techniques are in generally use in our country
a) Jump form
b) Slip form
26.
27. • Removal of formwork:
Time of formwork removal depends on the following factors
1. Type of Cement
1. Rapid hardening cements require lesser time as compared to OPC
(Ordinary Portland Cement)
2. Ratio of concrete mix
1. Rich ratio concrete gain strength earlier as compared to weak
ratio concrete.
3. Weather condition
1. Hydration process accelerates in hot weather conditions as
compared to cold and humid weather conditions.
29. • First free end's support
should be removed.
• And then from right to left it
should be proceed.
• If we are removing from the
mid span then it will act as a
prop cantilever.
Cantilever slab
30. • In simply supported we
have to remove the
support from the mid
span to the ends.
• To meet the design
behavior.
Simply supported slab
31. • Maintenance of formwork:
• Due to continuous use wooden planks & steel plates
surfaces become uneven and require maintenance.
• For wooden formwork use cardboard or plastic fiber
board. Bolt hole places must also be repaired.
• For steel formwork plates must be leveled by mallet
and loose corners must be welded.
32. • Cost of formwork
For normal works cost of formwork is about 30%-40% of the concrete cost.
For special works cost of formwork is about 50%-60% of the concrete cost.
Formwork cost is controlled by the following factors
• Formwork Material cost
• Formwork erecting cost
• Formwork removal cost
• Formwork jointing cost (Nails and Cables)
• Labor charges.
33. • Advantages of steel form work:
It can be used for a no. of times.
It is non absorbent.
Smooth finish surface obtained.
No shrinkage of formwork occurs.
Easy to use.
Its volume is less
Its strength is more.
34. • LOADS ON FORMWORK:
• Dead load
Self weight of formwork
Pressure and loads from fresh concrete
Reinforcement
• Imposed load
Construction workers
Stacking of materials
• Horizontal loads
• Environmental loads
Accidental loads
Wind loads
35. • References
• R.C.C Design by B.C.Punmia
• R.C.C Design by H.J.Shah
• Formwork Design Section 1500
• Doka Formwork Design
• Design of safe timber structures by Eva
and Tomi Torrati
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