Sand brick was a popular building material in construction in Malaysia. This is because, brick sand readily available. To meet the demand so high and the economy is not uniform in this century, it is one of the initiatives taken by the industry to reduce the use of materials and replaced with waste material. The natural ingredients of Palm Kernel Sell (PKS) tested because it belongs to the disposal of waste. In this study, PKS is used as a material to replace sand in sand bricks. The size used by sieve passing 4.75 mm with a mix ratio of 1: 3 (1 cement: 3 sand). There are 3 types of percentages used in this test which is control sample, 5% PKS and 15% PKS as replacement of sand. The overall number of samples is 120, in which each number is the 40 of sample for each 7 days and 28 days. Before the sample is subjected to compressive strength, it must go through the process water curing and air curing. Both types of curing were carried out for 7 days and 28 days. This method conducted to select the optimum compressive strength for the whole of the 10 samples taken at random. In addition, this curing also tested the ability of PKS to water absorption. The process to evaluate the rate of water uptake by the PKS. From tests conducted found samples containing 5% PKS in a 28-day compressive strength shows the most optimal and 5% PKS of air curing. As for the absorption of water, 15% PKS at 28 days was higher than the other. This is because the percentage of PKS is replaced with the most quantity. Finally, the results obtained from the tests meet the criteria required by JKR Standard but control samples were recommended for use in the construction besides of the weather factor.
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