Definitions for "Cement Board"
Keywords:  portland, ceramic, tile, mesh, thinset
(Construction) A factory-manufactured panel, 1/4" to 3/4" thick, 32" to 48" wide, and 3' to 10' long, made from aggregated and einforced portland cement.
A very rigid, cement based, structural sheet material. It is used as a base for ceramic tile instead of cement over lath.
Panels which are composed of an aggregated portland cement core, sandwiched between layers of reinforcing glass-fibre mesh.