PEMANFAATAN LIMBAH ABU SISA PEMBAKARAN SAMPAH NON ORGANIK SEBAGAI MATERIAL PENGGANTI PASIR PADA BATA BETON PEJAL

Putri, Desi and Ageng Kinasti, Mekar and Lestari, Endah (2018) PEMANFAATAN LIMBAH ABU SISA PEMBAKARAN SAMPAH NON ORGANIK SEBAGAI MATERIAL PENGGANTI PASIR PADA BATA BETON PEJAL. KONSTRUKSIA, 10 (1). pp. 39-50. ISSN 2086-7352

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Abstract

The increasing of house construction and building construction effected an increasing of solid concrete brick demands so, it caused the basic material requirement of solid concrete brick such as sand is also increased. The increase of sand demands will increase the sand price, especially for areas which are rare of sand production. The alternative materials to substitute sand are by utilizing ash waste left over from non-organic waste combustion. Waste of residual ash from non-organic waste combustion is chosen because its same size with sand and one of the efforts to reduce environmental problems. The study was conducted experimentally with two stages of testing. At the initial stage of the research preliminary testing is carried out which includes testing the physical properties of the material. The second stage was made by making specimens with a variation of the residual ash waste mixture combustion 0%, 10%, 20%, 30%, 40% and 50% of the amount of sand, then press testing conducted at the age of 7, 14, 21 and 28 days. From the test results obtained the value of the optimum compressive strength is in the variation of 10% waste residual waste combustion as much as 51.24 kg /cm2 and get the Third Quality level with 9.40% water absorption. The lowest compressive strength value is in the mixture variation of 50% residual ash waste combustion of 19.37 kg / cm2 not included in the quality level with 16.22% water uptake. Based on the results of the test is that the residual ash waste can be used as a substitute for sand in solid concrete bricks and is still get the Third and Fourth Quality according to SNI 03-0349-1989 so, it can be used as an alternative to brick replacement construction materials.

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