Yani, Rahma (2023) Studi Eksperimental Komposisi Semen Pasir Dan Bahan Tambah Abu Batu Dalam Pembuatan Paving Block Mutu Sedang. Other thesis, Universitas Islam Riau.

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Abstract

Currently, Indonesia is in the stage of massive development, including the construction of buildings, bridges, road infrastructure and supporting facilities. Indonesia must look for several alternative materials in development that are friendly to the environment, one of which is using paving blocks for the construction of roads, sidewalks for pedestrians, parking lots and parks in the city center. In this study, the experimental method was used by conducting a trial mix design. This research was carried out by testing the compressive strength and water absorption capacity based on SNI 03-0691-1996. The samples to be made are 6 experiments including 3 using 25% cement and 3 using 20% cement. The test object is square in shape with dimensions of 10.5 cm x 10.5 cm x 10.5 cm. Sample testing was carried out at the age of 14 days and 28 days. The average compressive strength of paving blocks aged 14 days using stone ash as a partial replacement for sand using 25% cement and 20% cement with variations of rock ash 0%, 5%, 10% to get compressive strength results that are in accordance with what the researchers planned namely quality B, 218.8 kg/cm2, 225.1 kg/cm2, 257.4 kg/cm2, 178.8 kg/cm2, 172.6 kg/cm2, 175.8 kg/cm2. The average compressive strength of paving blocks at the age of 28 days using stone ash as a partial replacement for sand using 25% and 20% cement with variations of stone ash 0%, 5%, 10% get compressive strength results that are in accordance with what is planned researchers namely quality B, 288.3 kg/cm2, 300.5 kg/cm2, 314.4 kg/cm2, 252.8 kg/cm2, 260.5 kg/cm2, 272.8 kg/cm2. Paving block water absorption at 14 days of age increased for each variation of the addition of stone ash using either 25% cement or 20% cement with 4.33%, 5.47%, 6.06%, 5.20%, 5.89 %, 6.29%. Water absorption in paving blocks aged 28 also increased in each variation of adding stone ash using 25% cement and 20% cement with 4.36%, 5.00%, 5.50%, 5.25%, 6.20 %, 7.60%.

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