Introduction to Concrete
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Concrete is a mixture of cement, water, aggregates like sand and gravel, and sometimes admixtures. The cement and water form a paste that hardens and binds the aggregates together into a solid material. Concrete can be molded into any shape and texture. It is strong in compression but weak in tension, so reinforced concrete uses steel bars that are strong in tension to create structures. Proper materials and techniques allow concrete to withstand many environmental conditions.
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Introduction of Concrete
Introduction of Concrete , advantages, Disadvantages, constituents of concrete, type of concrete,summary
PRESENTATION ON CONCRETE
Concrete
The word concrete comes from the Latin word "concretus". Which means compact. Now a days concrete is most common and necessary things in our life.
The history of cementing materials together goes back to the time when prehistoric man prepare his cave to build shelter.
He used mud and clay to fill the gap between stone. To keep out the wind and cold.
Later the Assyrians and Babylonians used clay as their bonding substance and straw to make a shape.
The Egyptians used lime and gypsum and crushed stone to create a material that would harden even better.
Special concrete
Special concrete is used when special properties are more important than normal concrete properties. It is produced using chemical and mineral admixtures added to conventional concrete mixes. There are several types of special concrete including lightweight concrete, high strength concrete, fibre reinforced concrete, ferrocement, ready mix concrete, and others. Each type has specific properties and uses in construction where standard concrete is not suitable.
Concrete technology
This document provides an overview of concrete technology. It discusses the composition of concrete including cement, water, and aggregates. It also describes the process of making concrete including batching, mixing, transporting, placing, compacting, curing, and finishing. Batching can be done by volume or weight, with weight batching being more precise. Concrete is mixed either by hand or using stationary mixers and is transported using various methods before being placed, compacted to remove air, and cured to allow further hydration. Finishing operations are the last steps to achieve the required surface.
CONCRETE MIX DESIGN
MEANING OF MIX DESIGN
GRADE OF CONCRETE.
FACTORS INFLUCING THE CHOICE OF MIX DESIGN.
MATHODS OF CONCRETE MIX DESIGN
MIX DESIGN BY INDIAN STANDARD METHOD.
Production of concrete
The document outlines the key stages in the production of concrete: batching, mixing, transporting, placing, compacting, curing, and finishing. It describes the various methods used at each stage, including volume and weight batching, hand mixing and stationary mixers, transport using trucks and conveyors, placement using different techniques, compaction through hand tools and vibration, curing methods like immersion and membrane curing, and finishing concrete surfaces.
Concrete
Concrete is a composite material made by binding aggregates with a cement paste. It comes in various types depending on the binding material (cement or lime) and purpose (plain, reinforced, pre-stressed). Good concrete has strength, durability, density, water tightness, workability and resistance to wear and tear. Proper mixing, placing, compaction and curing are required to develop these qualities in concrete.
Aggregate - coarse aggregates, testing & limits
This document provides information on aggregates used in traditional building materials. It defines aggregates as fillers used with binding materials that are derived from rocks. Aggregates make up 70-80% of concrete's volume and influence its properties. Aggregates are broadly classified into fine aggregates smaller than 4.75mm and coarse aggregates larger than 4.75mm. The document discusses various types of coarse aggregates based on geological origin, size, shape, and unit weight. It also covers properties of aggregates like strength, shape, specific gravity, moisture content and tests conducted on aggregates. Alkali aggregate reaction and measures to prevent it are summarized.
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Introduction of Concrete
Introduction of Concrete , advantages, Disadvantages, constituents of concrete, type of concrete,summary
PRESENTATION ON CONCRETE
Concrete
The word concrete comes from the Latin word "concretus". Which means compact. Now a days concrete is most common and necessary things in our life.
The history of cementing materials together goes back to the time when prehistoric man prepare his cave to build shelter.
He used mud and clay to fill the gap between stone. To keep out the wind and cold.
Later the Assyrians and Babylonians used clay as their bonding substance and straw to make a shape.
The Egyptians used lime and gypsum and crushed stone to create a material that would harden even better.
Special concrete
Special concrete is used when special properties are more important than normal concrete properties. It is produced using chemical and mineral admixtures added to conventional concrete mixes. There are several types of special concrete including lightweight concrete, high strength concrete, fibre reinforced concrete, ferrocement, ready mix concrete, and others. Each type has specific properties and uses in construction where standard concrete is not suitable.
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This document provides an overview of concrete technology. It discusses the composition of concrete including cement, water, and aggregates. It also describes the process of making concrete including batching, mixing, transporting, placing, compacting, curing, and finishing. Batching can be done by volume or weight, with weight batching being more precise. Concrete is mixed either by hand or using stationary mixers and is transported using various methods before being placed, compacted to remove air, and cured to allow further hydration. Finishing operations are the last steps to achieve the required surface.
CONCRETE MIX DESIGN
MEANING OF MIX DESIGN
GRADE OF CONCRETE.
FACTORS INFLUCING THE CHOICE OF MIX DESIGN.
MATHODS OF CONCRETE MIX DESIGN
MIX DESIGN BY INDIAN STANDARD METHOD.
Production of concrete
The document outlines the key stages in the production of concrete: batching, mixing, transporting, placing, compacting, curing, and finishing. It describes the various methods used at each stage, including volume and weight batching, hand mixing and stationary mixers, transport using trucks and conveyors, placement using different techniques, compaction through hand tools and vibration, curing methods like immersion and membrane curing, and finishing concrete surfaces.
Concrete
Concrete is a composite material made by binding aggregates with a cement paste. It comes in various types depending on the binding material (cement or lime) and purpose (plain, reinforced, pre-stressed). Good concrete has strength, durability, density, water tightness, workability and resistance to wear and tear. Proper mixing, placing, compaction and curing are required to develop these qualities in concrete.
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This document provides information on aggregates used in traditional building materials. It defines aggregates as fillers used with binding materials that are derived from rocks. Aggregates make up 70-80% of concrete's volume and influence its properties. Aggregates are broadly classified into fine aggregates smaller than 4.75mm and coarse aggregates larger than 4.75mm. The document discusses various types of coarse aggregates based on geological origin, size, shape, and unit weight. It also covers properties of aggregates like strength, shape, specific gravity, moisture content and tests conducted on aggregates. Alkali aggregate reaction and measures to prevent it are summarized.
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This document provides information on concrete, including:
- Concrete is a mixture of cement, water, and aggregates that hardens over time into a strong building material.
- Proper mixing, placing, and curing of the concrete allows it to gain strength through a process called hydration as it ages.
- Factors like the water-cement ratio, type of aggregates, compaction, and curing affect the properties and strength of hardened concrete.
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This document discusses various properties of hardened concrete, including its strength and stress-strain behavior. It describes how compressive, tensile, and splitting tensile strengths are measured through standard tests. The compressive strength of concrete is influenced by factors like the water-cement ratio, degree of compaction, cement type, and curing method. The stress-strain curve for concrete is nonlinear, and its modulus of elasticity can be defined using different methods. The document also covers creep and shrinkage in concrete, how they occur over time, and their effects on structural integrity.
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Aggregates make up 65-80% of concrete's volume and are inert fillers that float in the cement paste. Their characteristics impact the performance of fresh and hardened concrete. Aggregates are classified based on size, specific gravity, availability, shape, and texture. Proper aggregate grading leads to a dense, strong concrete mixture. The fineness modulus is a number that indicates an aggregate's grading, and the flakiness index measures elongated particles. Well-graded aggregates with low elongation produce high quality concrete.
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Mortar is a mixture of binding material, fine aggregate like sand, and water that is used for masonry work, plastering and pointing. It binds together bricks, stones or concrete to form a strong, durable structure. Mortar comes in different types for various uses - cement mortar for high strength applications, lime mortar above ground, lightweight mortar with fibers, fire resistant mortar, and mud mortar for rural buildings. Sand and surkhi are added to mortar to reduce cracking and provide strength, density and color.
Mortar
The document discusses different types of mortar used in construction. It defines mortar as a mixture of a binding material, fine aggregate, and water. Common binding materials include cement and lime. Mortars are classified by their binding material, such as cement mortar, lime mortar, and mud mortar. Specialty mortars include fire resistant mortar, lightweight mortar, and chemical resistant mortar which are formulated for specific applications. The document outlines the proper mixing and application of different mortars.
Construction Materials
This document provides an overview of various civil engineering materials including timber, sand, aggregate, mortar, and concrete. It discusses the types, properties, requirements and uses of each material. Timber types include hardwood and softwood. Sand is classified as fine, medium, or coarse. Aggregate can be natural or artificial, and classified by size as fine or coarse aggregate. Mortar requirements include workability and water retention. Mortar types include cement, lime, lightweight, fire resistant, and mud mortar. Concrete uses cement, water, aggregates and sometimes admixtures to bond together with strength, durability and versatility.
CIVIL ENGINEERING CONSTRUCTIONS MATERIALS
This document provides information on various civil engineering materials including timber, sand, aggregate, mortar, and concrete. It discusses the types, properties, requirements and uses of each material. Timber types include hardwood and softwood. Sand is classified as fine, medium, and coarse. Aggregates can be natural or artificial, and are classified by size as fine or coarse aggregates. Mortar types include cement mortar, lime mortar, light weight mortar, fire resistant mortar, and mud mortar. Concrete types depend on mix design and include regular concrete, high strength concrete, self-consolidating concrete, and others. Each material has important applications in construction.
specification of Rcc
The document discusses reinforced cement concrete (RCC), including its history, materials, specifications, and advantages/disadvantages. RCC uses steel reinforcement embedded in concrete to resist tensile, shear, and sometimes compressive stresses. François Coignet is considered a pioneer of RCC, building the first reinforced concrete structure in 1853. Proper proportions and mixing of cement, aggregates like sand and gravel, and water are needed to produce durable concrete. Precast concrete involves casting pieces off-site then transporting them for assembly.
MORTAR AND CONCRETE HOLLOW BLOCKS
The document discusses mortar and concrete hollow blocks. Mortar is made from a mixture of fine aggregate, water, and cement that is used to bind bricks or stones. Concrete hollow blocks are large rectangular bricks made primarily from cement, sand, and gravel. They have hollow cores which make them lighter and more insulating than solid blocks. The document outlines the production process and advantages of using concrete hollow blocks for construction.
Adv.Construction - assignement.pdf
Concrete is an important construction material due to its strength, durability, versatility and cost-effectiveness. It is composed of cement, water and aggregates. Concrete offers advantages such as durability under various weather conditions, the ability to be molded into different shapes, fire resistance, sustainability and ease of construction. These properties make concrete widely used for infrastructure, housing and commercial structures.
Building materials
This document provides information on concrete, its ingredients and properties. Concrete is composed of Portland cement, water, aggregates (sand and gravel/crushed stone) and sometimes admixtures. It is mixed either by hand or machine. The cement and water form a paste that binds the aggregates together as it hardens. Concrete has high compressive strength but low tensile strength. Proper curing is required for concrete to attain its full strength. Concrete is a versatile building material with many applications.
Tutor mortars ppt 1a
This document provides information on mortars used in construction. It defines mortar as a mixture of sand, cement and water that is used as a binding agent between bricks or blocks. It discusses the requirements for a good mortar mix, including workability, strength, bond strength and durability. It also covers the different materials used in mortar such as sand, cement and additives. Mix proportions, water-cement ratios and methods of mixing mortar are also outlined.
Quality of construction material and durability of home
Quality is an important factor in construction process. It depends upon the material used in construction process which ultimately affects the durability of home.
Cement,lime,mud mortors
Lime – Types, properties and uses.
Cement – Composition, Varieties, Properties, Methods of manufacture; Tests on
cement.
Mortar- Lime mortar, Cement mortar, Surkhi mortar, Mud mortar, Stabilized mud
mortar, Gypsum and plaster of paris, Hydraulic mortar, Puzzolona mortar
Tutor mortars ppt 1
This document provides information on mortars used for brick wall construction. It discusses the typical materials in mortar mixes including sand, cement, water and additives. It describes requirements for good mortar such as workability and strength. Different types of cement and sand are outlined. Guidelines for mixing mortar by hand or machine and transporting pre-mixed mortar are also provided.
Mortar
Building mortars are mixtures used for jointing bricks, stones, and blocks. They are made by adding water to a mixture of fine aggregates like sand and a binding material such as cement, lime, or gypsum. Mortars are used in brick/stone masonry joints and plastering to bind units together, provide structure strength and durability, and form a protective weather-resistant layer between masonry courses. Common types include cement mortars, lime mortars, and clay/mud mortars.
Metromix concrete driveways
This document provides information about concrete, including its composition, uses, manufacturing process, types, and properties. Concrete is a mixture of cement, coarse aggregate, fine aggregate, and water. It is the most widely used man-made material in the world. Aggregates give body to concrete while cement acts as the binding agent. Concrete has high compressive strength but is weak in tension, so reinforcing steel bars are often added. The manufacturing process involves mixing, transporting, placing, compacting, and curing concrete. Common types include reinforced concrete and precast concrete.
Module II MATERIAL TESTING AND EVALUATION [BTCVE506A]
Civil Engineering Materials: introduction to cement and concrete, uses of cement, strength of cement and concrete ,sand,
coarse aggregates, mortar and grouts, masonry mortars, rendering, cementitious grouts, RCC, clay bricks ,calcium silicate bricks, concrete blocks., rubbles, steel , steel grades, mechanical properties of steel, different applications, floor and roofing tiles, slates, timber, strength of timber ,Engineered wood products, metals, glass for glazing, glass fibres, glass wool,
bituminous materials, binder properties, binder mixtures, asphalt mixture.
RCC lecture Shivang 1.pdf
Fresh Concrete
- Fresh concrete, also called plastic concrete, can be molded into any shape while in its wet state.
- The workability of concrete is determined by the relative quantities of cement, aggregates, and water. It refers to how easily concrete can be mixed, placed, compacted, and finished without segregating.
- Factors that affect workability include water content, mix proportions, size and shape of aggregates, use of admixtures, and time/temperature. Increasing water does not always increase workability and can cause segregation.
1st Mortars
Mortars and concretes are mixtures of binding materials, aggregates and water that harden over time. Mortar is used to bind bricks, stones or tiles, while concrete includes both fine and coarse aggregates. There are many types of mortars and concretes classified according to their binding materials, designs and purposes. Cement mortar and concrete provide high strength and durability, while lime and mud mortars are cheaper but weaker. Reinforced concrete includes steel reinforcement to take tensile stresses.
CONCRETE PPT SA JBP
Concrete -
The most used construction material.
In here a brief about its -
Ingredients
Grades
Production &
Properties
are discussed with appropriate pictorial presentation making it quite simpler for understanding.
Introduction of Concrete.pdf
Introduction of Concrete.pdfD. Y. Patil College of Engineering & Technology, Kolhapur, Maharastra, India
Concrete is a mixture of cement, sand, gravel, and water that hardens into a building material. It is the second most consumed substance on Earth after water. Concrete is made by mixing cement and water to form a paste that is then mixed with fine and coarse aggregates. The paste coats the surface of the aggregates and binds them together into a rock-like mass once hardened. Concrete's strength comes from reinforcement like steel bars for buildings and structures.Similar to Introduction to Concrete (20)
Quality of construction material and durability of home
Quality of construction material and durability of home
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Introduction to Concrete
- 2. • Is a mixture of cement , water, aggregates , and in some cases, admixtures. • The cement and water form a paste that hardens and bonds the aggregates together. • It can be placed or molded into virtually any shape and reproduce any surface texture.
- 3. • Cement • Aggregate- sand, gravel, crushed rocks • Water • Admixtures- when necessary
- 4. • Cement is a binder, a substance used in constructions that sets and hardens and can bind other materials together
- 5. • Aggregates occupy 60-70 % of the volume of concrete. • Sand, gravel and crushed stone are the primary aggregates used. • All aggregates must be essentially free of silt and organic matter.
- 6. • Good water is essential for quality concrete. • It should be good enough to drink, free of organic matter and excessive chemicals or minerals. • The strength and other properties of concrete are highly dependent on the amount of water and the water-cement ratio.
- 7. • Admixtures are ingredients other than cement, water, and aggregates. • Admixtures are added to the concrete mixtures immediately before or during mixing.
- 8. • Are used to slow the rate of concrete hardening. • They are useful for concrete that is placed during hot weather.
- 9. • Are used to increase the rate of concrete hardening. • They are useful for concrete that is placed during cold weather.
- 10. • With proper materials and techniques, concrete can withstand many acids , fertilizers, water, fire, and abrasion. • Concrete can be finished to produce surface ranging from glass-smooth to coarsely textured, and it can be colored with pigments or paints.
- 11. • Concrete has substantial strength in compression, but it week in tension. • Most structural uses, such as beams, slats, and manure tank lids, involve reinforced concrete, which depends on concrete’s strength in compression and steel’s strength in tension.