Development of Bricks Based on Limboto Lake Sediment As An Eco Friendly Building Material

Abstract

The use of soil or clay in bricks making process can become a new problem for environment. Meanwhile, the problem of shallowness of Limboto lake due to the massive sedimentation that needs an immediately tackling. This research is aimed to cope with those two problems. This research used the sediment the river mouth of Alo-Pohu as red bricks which consist of three various experiment media; bricks of sediment Limboto lake; bricks made with the volume comparison of one sediment of Limboto lake and one part of clay; bricks made by comparison one part of the sediment and two parts of soil. Clay taken from the area of the bricks manufacturing in Jalan Bengawan Solo in Gorontalo city. The bricks arranged based on the certainty in ASTM C1314-02a of each 5 (five) specimen which then conducted compression test. The experiment result is gained with the value of 3,59 MPa (35,9 kg/cm2) for red bricks from sediment. The average compression strength of bricks that use material with the comparison 1 : 1 is 4,18 MPa (41,8 kg/cm2) with both damage type are conical. The average compression strength of the bricks use material with the comparison 1 : 2 is 7,38 MPa (73,8 kg/cm2) based on SNI 15-2094-1991 in the best bricks classification which is B2.