Carbonation is the description of lime setting or going off where the chemical reaction completes its cycle of hardening.

A cavity in the external curtain of a building is the gap between an inner and outer wall.

Cement is a mixture made of burnt limestone and clay that when mixed with water hardens and bonds aggregates together. It is the bonding agent in sand and cement render. 

Cement plaster is a mixture of sand and cement that is often used as a base coat for wall coatings like plaster.

Concrete is material used in construction that is made from cement and aggregates such as gravel, sand, water and hardening chemicals.

A control joint is a bead designed to bridge two surfaces at a gap or joint and offers controlled expansion and contraction between the two surfaces in line with the expansion and contraction of the construction.

A corner bead is bead placed on a corner to give a reinforced straight finish.

Crazing describes the narrow, fine cracks and lines that appear on a rendered surface or in plaster finishes. It is usually caused by poor surface preparation or using incorrect materials.

Curing is a term that describes a reaction, such as evaporation, taking place in a moist render that leaves it hard and permanent.