Interlocking Blocks Containing Coconut Shell Ash

Abstract

This purpose of this research was to study the process of Interlocking blocks containing coconut shell ash and to study appropriate ratio of coconut shell ash replace lateritic soil and comparing compressive strength of Interlocking blocks containing coconut shell ash with brick blocks from the market. The ratio of cement : Sand : lateritic soil : coconut shell ash  equal  1 : 2 : 2 : 1, 1 : 2 : 1 : 2 and 1 : 2 : 0 : 3 by volume. Mixture ingredients together to form with Interlocking brick manual and then curing for 14 days. The study found that coconut shell ash can as ingredients in the manufacture of brick block and the result of compression test show that increasing the amount of coconut shell ash, compressive strength is decreased. The ratio of cement: sand: lateritic soil: Coconut shell ash as 1: 2: 2: 1 (formula 1) is the most appropriate had compressive strength is 49.89 ksc and when comparing the Interlocking blocks containing coconut shell ash with brick blocks from the market. It found that the Interlocking blocks containing coconut shell ash all 3 formulas was compressive strength more than brick blocks from the market.