Concrete

grade of concrete

Different Grade of Concrete: M20, M25, M30, their Mix ratio and Uses.

What is meant by Grade of Concrete? The grade of concrete is defined as the minimum strength the concrete should have after the completion of 28 days of the construction period with proper quality control. It is denoted by MPa, where M stands for Mix and the MPa denotes the overall strength. For example, for …

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water cement ratio of concrete

Water Cement Ratio of Concrete | Source of Undesirable Water in Concrete

What is the Water Cement  Ratio of Concrete? The Water Cement Ratio of concrete is defined as the ratio of the weight of water to the weight of cement used in the concrete mix. Water plays an important role in the concrete as it actively participates in the chemical reaction with cement. Since water helps …

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Reinforced cement concrete

REINFORCED CEMENT CONCRETE (R.C.C.)

  Materials Used in Reinforced Cement Concrete (R.C.C.)Work   Cement Before the introduction of ordinary portland cement, the lime was used as a cementing or binding material. Most of the cement concrete work in building constructions are done with ordinary portland cement. But other special varieties of cement such as rapid hardening cement, high alumina …

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precast concrete section

Precast Concrete : Definition and Properties

Precast Concrete Section What is Precast Concrete? Precast concrete consists of concrete ( a mixture of cement, aggregates, admixtures, and water) is produced by casting into a specific shape in reusable molds or by using highly advanced machinery and then cured in a controlled environment at a location other than that of its service position. …

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Reinforced cement concrete

Cement Concrete || Constituents, Properties and Uses

What is Cement Concrete? Portland cement concrete is a mixture of Portland cement, water, coarse and fine aggregates, and admixtures proportioned to form a plastic mass capable of being cast, placed, or molded into forms that will harden to a solid mass. The desirable properties of plastic concrete are that it be workable, placeable, and …

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Workability of Concrete

Workability of Concrete – Definition and Types

Workability of Concrete Workability is the property of concrete that determines the amount of useful internal work, necessary to produce full compaction i.e., it is the amount of energy needed to overcome friction while compacting concrete. Also defined as the relative ease with which concrete can be mixed, transported, molded, and compacted without any segregation. …

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