Nurul Malahayati, Yulia Hayati, Hendra Gunawan
The type of material, the composition of the mixture, and the production process are the factors that affect the strength of the interlock brick. Interlock bricks in this study were used as the wall pairs construction of a house. The interlock brick forming mixture consists of cement, diatomaceous soil, sand, and water. Diatomaceous soil and sand used a maximum diameter of 4.75 mm and were not calcined. Interlock bricks with dimensions of 30 cm x 20 cm x 10 cm were produced with a manual hydraulic press and the maintenance period was up to 28 days, then cut into dimension test objects by 5 cm x 5 cm x 5 cm. A total of 150 specimens from 5 variations of mix designs using a water cement ratio (WCR) of 0.3; 0.4 and 0.5 were used in this study. The purpose of this study was to obtain the quality level of the interlock brick based on the compressive strength test at the age of the brick after 28 days. The quality level is based on compressive strength using the Indonesian National Standard, namely SNI 03-0349-1989. Based on the results of the compressive strength, the average interlock brick with a mixture of diatomaceous earth has a class III quality, which means that it can only be used as a non-structural wall pair. © 2023 Author(s).
Department of Civil Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia
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