The moisture content test, whereby straightly carried out after samples were taken out from the curing tank. The sample was first determined for initial weight. Then, it was inserted in the oven. The oven was preheated for about 15 minutes at the temperature of 103± degree Celsius. The sample was then left in the oven for a period of 24 hours. After 24 hours, the sample was then weighed again. The weight difference of the sample is the weight of moisture inside the sample.