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

scaling

Building materials; Concrete

The local flaking or peeling of a hardened concrete surface , usually less than 1/8 th inch, caused primarily by hydraulic pressures from freeze-thaw cycles affecting the concrete at the surface.

rich mix

Building materials; Concrete

A mortar or concrete mix with a relatively high cement content. Fat mix is more easily spread and worked than a mix with the minimum amount of cement required for strength.

release agent

Building materials; Concrete

Material used to prevent bonding of concrete to a surface, such as to forms.

retardation

Building materials; Concrete

Delaying the hardening or strength gain of fresh concrete, mortar or grout.

retarder

Building materials; Concrete

An admixture which extends the setting time of cement paste, and therefore of mixtures such as concrete, mortar, or grout.

retempering

Building materials; Concrete

The addition of water and remixing of concrete which has started to stiffen: usually not acceptable as it may affect the ultimate strength.

saponification

Building materials; Concrete

The deposit of a gray scum or gray dust on the inside surface of a sub-grade wall or floor as the result of moisture moving through the concrete and washing certain chemicals from the concrete mass.