Concrete is defined as a mixture of cement sand gravel and water which dries hard and strong and is used as a material for building. Concrete is considered as a chemically combined mass where the inert material acts as a filler and the binding materials act as a binder.
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Most common aggregates are sand brick chips stone chips gravel shells etc.
Explain concrete as a building material. Inert materials used in concrete are termed as aggregates. Concrete is a composite material made from mixing cement aggregates such as sand and crushed stone and water. The lowest carbon footprint for a structure or pavement over its lifecycle unparalleled strength durability longevity and resilience maximized energy efficiency via thermal mass.
The properties of concrete depend on the ratios used in the mix design. Concrete is the second most used material for construction after water in the world. The most important binding materials are cement and lime.
The most common form of concrete is Portland cement concrete which consists of mineral aggregate generally gravel and sand portland cement and water. It solidifies and hardens after mixing with water and placement due to a chemical process known as hydration. Therefore its a standard practice for concrete suppliers to provide material properties and test results for each concrete patch.
So the reinforcement is given to concrete where the structure is under the tension load. It binds other building materials together. Water reacts with hydrates the cement around the aggregate to form a solid bonded conglomerate.
Explain why additives are added to concrete and list three types of additives used in concrete construction. Portland cement is the commonly used type of cement for production of concrete. Reinforced concrete concrete in which steel is embedded in such a manner that the two materials act together in resisting forces.
Concrete structure can take compressive stresses very effectively but it cannot take tensile stresses. A Three test cubes which have been taken from a batch of lightweight concrete with the side edge 100 mm are crushed by loads 303 kN 295 kN and 299 kN after having been stored in water at 20C for. Concrete Concrete is a composite material composed of a cement most commonly Portland cement and fly ash a fine aggregate sand a coarse aggregate gravel or crushed stone and sometimes chemical admixtures.
Concrete is a vital element and a vitally important thing that is used in several individual and commercial buildings. Concrete in construction structural material consisting of a hard chemically inert particulate substance known as aggregate usually sand and gravel that is bonded together by cement and water. Concrete is a composite building material made from the combination of aggregate and a binder such as cement.
Concrete technology deals with study of properties of concrete and its practical applications. The reinforcing steelrods bars or meshabsorbs the tensile shear and sometimes the compressive stresses in a concrete structure. Concrete is so integral to our communities because it is the only building material that cost-effectively delivers.
Concrete is a construction material composed of cement fine aggregates sand and coarse aggregates mixed with water which hardens with time.
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