N. Rasidi, T. Rochman, S. Sumardi, F. Purnomo
Lightweight interlocking brick is one alternative to replace conventional clay brick through combustion. This study is related to the design of the proportion of interlocking light brick mixtures as well as concrete sand and foam agent in various percentages and found the optimal percentage of foam agent by testing cylindrical specimens casted for 28 days compressive strength and finally testing each others lightweight brick shear strength lock in full scale model. The final report provided the results of investigative experiments in which compressive strength, water absorption and density were investigated using the optimal percentage of the proportion of foam agent, sand, cement, and aggregate mixture. In conclusion, The results obtained from this experiment are the compressive strength lightweight interlocking brick with the addition of 0% fiberglass of 2.27 MPa,1% fiberglass addition of 2.88 MPa, 3% fiberglass addition of 2.91 MPa, the addition of fiberglass 6% of 2.88 MPa, addition of 9% fiberglass of 2.94 MPa and flexural lateral compressive strength test at a maximum load of 11,084 kg/cm2 with a deflection of 6,405 mm. Horizontal shear test results are 1,218 kg/cm2 and for diagonal shear testing is 0.398 kg/cm2. The total production cost of interlocking light bricks is IDR 786,000 per cubic meter more expensive than normal light bricks. © Published under licence by IOP Publishing Ltd.
Civil Engineering Department, State Polytechnic of Malang, Malang, Indonesia
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