Kajian Kuat Tekan Beton Berdasarkan Kondisi Bakar dan Tanpa Bakar (Studi Mutu Beton 20 MPa Menggunakan Metode American Concrete Institute)
Abstract
Kata kunci: Kuat Tekan Beton, American Concrete Institute, Beton Bakar.
Abstract—Concrete is a mixture of materials widely used in every construction work such as in building, road, and bridge. Concrete has different criteria according to agreed plans. The quality of concrete is greatly influenced by its material and maintenance. Concrete quality can be reduced due to fire. The overheating process of concrete is not planned at the concrete planning stage. Therefore, it may reduce or increase the quality of the concrete. The current study aimed to compare the press strength of combusted and normal concrete. The American Concrete Institute (ACI) method was employed in the study. This study was conducted on the 20 MPa cylindrical concrete for a total of 8 samples. Four samples were set to be burned while the other four were in normal conditions. Combustion is carried out at temperatures above 250oC for the duration of 3 hours. The results showed that the concrete quality of the combusted concrete was 17.7 Mpa, 20.9 Mpa, 11.4 MPa, and 21.7 MPa, respectively while the normal concrete obtained 25.8 MPa, 26.67 MPa, 28.4 MPa, and 22.5 MPa respectively. The average press strength for combusted concrete was 17,925 MPa while the normal concrete without combustion was 27.00 MPa. It can be concluded that combustion reduced the press strength of the concrete at about 33.61% compared to the normal concrete.
Keywords: Concrete Press Strength, American Concrete Institute, Burned Concrete
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DOI: https://doi.org/10.38038/vocatech.v1i0.5
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