Lendo, Dwikyanus Ngoe (2023) Pengaruh Ukuran Agregat Kasar dan Rasio Volume Agregat Kasar-Semen terhadap Kuat Tekan Beton Non Pasir dengan Filler Kuarsa. Undergraduate thesis, Fakultas Teknik Universitas Merdeka Malang.

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Abstract

Non-fines concrete is an innovative form of normal concrete type obtained by removing fine aggregates in the manufacture of concrete. The absence of fine aggregates in the mixture results in a system of uniformity of voids distributed within the concrete mass, as well as a reduction in the specific gravity of concrete. Therefore, alternative additives are needed that can be used in the manufacture of concrete without reducing the quality of the non-sand concrete itself, and can even improve the quality or quality of non-sand concrete. . The manufacture of non-sand concrete with quartz filler added material with variations in the size of coarse aggregates and the volume ratio of coarse-cement aggregates aims to determine the effect of variations in the size of coarse aggregates with the ratio of the volume of coarse-cement aggregate size to the compressive strength of non-sand concrete with quartz filler.
In this study, concrete compressive strength testing was carried out on a cylinder test object measuring 15 x 30 cm. Testing is carried out after the concrete is 28 days old. Fariasi The size of the coarse aggregate used is 5, 10, and 20 mm while the volume ratio of the size of the coarse-cement aggregate used is 2 : 1, 3 : 1, 4 : 1. The test objects totaled 36 pieces and were divided into 4 populations. Concrete compression strength testing is carried out using a compression testing machine based on ASTM C94 standards.
The results showed that the non-sand concrete test object with the influence of variation in coarse aggregate size of 5 mm, FAS of 0.5, cement coarse aggregate volume ratio of 2 : 1 and the addition of 15% quartz filler had the highest average compressive strength of 18.87 Mpa. While the normal concrete test object without filler has the highest average compressive strength of 12.74 Mpa using a fas of 0.5 and a coarse aggregate size of 20 mm. So it can be concluded that in this non-sand concrete study, the size of the coarse aggregate is 5 mm and the volume ratio of the coarse-cement aggregate is 2: 1, mm has the highest compressive strength value of non-sand concrete.

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