Analisis Studi Eksperimental Sifat Mekanik Bata Ringan (Cellular Lightweight Concrete) Akibat Pembebanan Displacement Control

M. Rizal Dika Efendi, Reni Suryanita, Harnedi Maizir


Light brick is a brick that has a specific gravity ranging between 600 to 1600 kg/m3. Light brick has the main raw material consisting of sand, cement, water, coupled with a foaming agent material. The aim of the study was to obtain the composition of the optimum light brick mixture which resulted in maximum compressive strength. The compressive strength of the lightweight concrete was measured by applying compression displacement-controlled loading system. The mixture of each composition for the lightweight concrete used in this study was compliance with Ministry of Public Works module for lightweight mortar technology heap foam material for road construction. Light brick composition was varied based on the percentage of foaming agent and sand. The optimum composition has 25 kg cement, water as much as 13 kg, sikament NN 200 ml, sand as much as 64 kg and foaming agent as 5.7 kg of 12 samples of the test specimen. The compressive strength of optimum composition at the age of 3, 7, 14 and 28 days was 0.264 MPa, 0.364 MPa, 0.511 MPa, and 0.648 MPa, respectively. Based on test results, it was concluded that the addition of the foaming agent and sand would increase the compressive strength of the light brick.
Keywords: Brick Lightweight CLC, Compressive Strength, Displacement Control Method, Optimal composition.

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