Abstract
This research intends to improve laterite material as an alternative filler composite mortar bricks, beginning with analyzing the substitution of mortar sand composite, to its concrete mortar composite according to characteristic and compressive strength, in comparison to common brick building materials. This research was pointed, out to maximize the brick's compressive strength with laterite addition by experiment method. Samples were made with two variations, which are normally and laterite bricks (as sand substitution is 50%) and the compressive strength gain normal mixture was at 25,09 kg/cm2. Meanwhile, by using 50% bricks substitution and 50% sand substitution, the results were 28,56 kg/cm2. It can be assumed that compressive strength material can increase the compressive strength.