Concrete

Concrete

Referring to an artificial, stonelike material used for various structural purposes, that is made from the drying and hardening of cement.

Industry: Building materials

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Concrete

Parging

Building materials; Concrete

Portland cement plaster applied over masonry to make it less permeable to water.

Overvibration

Building materials; Concrete

Excessive vibration of freshly mixed concrete during placement-causing segregation.

Ball test

Building materials; Concrete

A test to determine the consistency of freshly mixed concrete by measuring the depth of penetration of a cylindrical metal weight or plunger that has been dropped into it.

Proportioning

Building materials; Concrete

Selection of proportions of material for concrete to make the most economical use of available materials to manufacture concrete of the required strength, placeability, and durability.

Preplaced concrete

Building materials; Concrete

Concrete manufactured by placing clean, graded coarse aggregate in a form and later injecting a Portland cement-sand grout under pressure, to fill the voids.

Precast

Building materials; Concrete

A concrete unit, structure or member that is cast and cured in an area other than its final position or place.

A mineral admixture. A siliceous, or siliceous and aluminous material, which in itself possesses little or no cementitious value but will, in a finely divided form, such as a powder or liquid and in ...