STRENGTH COMPARISON OF CALCINED AND UNCALCINED LATERITES IN A LATERIZED CONCRETE

Abstract: The objective of this research is to assess the effect of calcining laterite in laterite concrete by comparing the compressive strength of calcined and uncalcined laterite in laterite concrete. Three trial batches of cement concrete using 1:1:4 proportions of cement, river sand, and coarse aggregate. 20% of the coarse aggregate was substituted with calcined and uncalcined laterite for workability and compressive strength testing of specimens for three trial mixes with maturities of 7, 14, and 28 days. The compressive strength of calcined laterite in laterite concrete increases from 16.5 to 33.9N/mm2 at 7, 14, and 28 days.

Keywords: compressive strength, calcined laterite, uncalcined laterite, workability