Cement Construction Block

Apex Construction Systems Inc. manufactures the Apex Block, construction blocks made of recycled polystyrene and cement. The product’s interlocking channel is a tongue-and-groove wall assembly system that does not require seam gluing. They can be filled with concrete for load-bearing, shear, stem and retaining walls.

Using carpentry tools, blocks can be cut, routed, carved and shaped, and accept siding surface or material, such as brick, stucco and plaster. The wall system does not sweat, cool or radiate trapped heat, but readily breathes and insulates with an R-value of 52. Each block weighs 52 pounds.