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

Jitterbug

Building materials; Concrete

A grate tamper used to bring sand and cement grout to the surface of wet concrete during placement of slabs. May be motorised or hand operated.

Keyway

Building materials; Concrete

A recess or groove in one lift or placement of concrete that is filled with concrete of the next lift, giving shear strength to the joint.

Jacking equipment

Building materials; Concrete

In prestress concrete, the device used to stress the tendons.

Key

Building materials; Concrete

A slot formed into a concrete surface for the purpose of interlocking with a subsequent pour of concrete.

Kelly ball

Building materials; Concrete

A device for determining the consistency of fresh concrete, sometimes used as an alternative to the slump test.

Binder

Building materials; Concrete

Almost any cementing material, either hydrated cement or a product of cement or lime and reactive siliceous materials. The kinds of cement and the curing conditions determine the general type of ...

Particle distribution of granular materials among various sizes. Usually expressed in terms of cumulative percentages smaller or larger than each of a series of sieve openings or percentages between ...