Pervious Concrete

Pervious Concrete Pervious concrete is a type of concrete with a system of interconnected pores allowing water to rapidly drain through. Pervious concrete itself is made up of coarse aggregate that is coated by a thin layer of cement paste, holding the system together. While the compressive strength, void content, and permeability tend to vary …

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Characteristics of High volume Fly Ash Concrete

fly ash

Flyash Flyash is the by-product of the combustion of pulverized coal and is collected by mechanical and electrostatic separators from the fuel gases of power plants where coal is used as a fuel and the disposal of flyash is one of the major issues for environmentalists as dumping of flyash as a waste material may …

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Recycled Concrete Aggregate

Recycled Concrete Aggregate

In a constantly evolving society there stems a need to develop and improve the current infrastructure. In order to build new infrastructure, building materials such as concrete will be needed. The raw materials needed for the aggregates and cements come from natural resources that do not get replaced. In the addition the energy needed to …

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Self-compacting Concrete: Fresh Properties

self-compacting concrete

Self-compacting Concrete: Fresh Properties Self-compacting concrete has specific fresh state properties which conventional concrete does not have. Fresh concrete properties of SCC are obviously related to its property of self-compactability. Self-compactability in mechanism terms is related to the rheology of fresh concrete. On the other hand, it is also related to workability parameters in terms …

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Shotcrete: Why to Use

Shotcrete

Why Shotcrete a. Importance of proper application Properly applied shotcrete is a structurally sound and durable construction material which exhibits excellent bonding characteristics to existing concrete, rock, steel, and many other materials. It can have high strength, low absorption, good resistance to weathering, and resistance to some forms of chemical attack. Many of the physical …

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Fiber Reinforced Plastics (FRP):Introduction-Properties

Fiber Reinforced Plastics (FRP):Introduction-Properties Concrete structures regardless of their purpose are disintegrating. A common link for this breakdown is that steel reinforcement is being used to strengthen the flexural capacity of the structures. Reinforcing steel will corrode when contact is made with humid or salty environments. When steel corrodes, it is expanding which creates tensile …

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