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All Journal Pendidikan Teknik Bangunan Indonesian Journal Of Civil Engineering Education
Abdul Rohman Anshory
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Civil Engineering, Building, Construction & Architecture Education

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PEMANFAATAN ABU VULKANIK GUNUNG KELUD SEBAGAI PENGGANTI SEBAGIAN AGREGAT HALUS PADA BETON NORMAL SEBAGAI PENDUKUNG BAHAN AJAR MATA KULIAH TEKNOLOGI BETON (PADA MAHASISWA PTB, JPTK, UNS) Anshory, Abdul Rohman; Sumarni, Sri; Roemintoyo, Roemintoyo
Pendidikan Teknik Bangunan Vol 6, No 6 (2015): Jurnal Pendidikan Teknik Bangunan
Publisher : Pendidikan Teknik Bangunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.559 KB)

Abstract

The purpose of this study was to determine (1) Effect of volcanic ash in partial replacement of the total fine aggregate of compressive strength and the density of the concrete, (2) resistance to the optimal compression of the concrete (3) optimum density concrete. (4) The teaching material obtained in the course of concrete technology on the effect of volcanic ash on the compressive strength of concrete and normal density.Experimental studies using methods and analytical techniques using a quantitative analysis of regression. Variables in the study were (1) the dependent variable: the strength of concrete in compression and the density of concrete, (2) independent variables: the variation of 0%, 10%, 15%, 20% and 25% Volcanic ash from the total weight of the sand. The sampel is  in the form of a cylinder with a diameter of 150 mm and a height of 300 mm.Based on the results of the study concluded that (1) changes in volcanic ash as a partial replacement of the fine aggregate strong overall influence on the compressive strength and density of concrete, (2) the optimal value of compressive strength and the weight of each type of concrete which is the variation of volcanic ash 8,36% amounted to 23,231 MPa, 11,889% to 22,919 MPa, (3) the value of the optimal concrete mixture as a whole, to namely the variation of volcanic ash 11,889% (4) in the form of teaching material to supplement teaching materials using Kelud volcanic ash as a partial replacement of fine aggregate on in terms of compressive strength concrete and density.Key words: normal concrete, volcanic ash, compressive strength, density.
PEMANFAATAN ABU VULKANIK GUNUNG KELUD SEBAGAI PENGGANTI SEBAGIAN AGREGAT HALUS PADA BETON NORMAL SEBAGAI PENDUKUNG BAHAN AJAR MATA KULIAH TEKNOLOGI BETON (PADA MAHASISWA PTB, JPTK, UNS) Abdul Rohman Anshory; Sri Sumarni; Roemintoyo Roemintoyo
Indonesian Journal Of Civil Engineering Education Vol 1, No 1 (2015): Indonesian Journal of Civil Engineering Education
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (540.393 KB) | DOI: 10.20961/ijcee.v1i1.16898

Abstract

The purpose of this study was to determine (1) Effect of volcanic ash in partial replacement of the total fine aggregate of compressive strength and the density of the concrete, (2) resistance to theoptimal compression of the concrete (3) optimum density concrete. (4) The teaching material obtained inthe course of concrete technology on the effect of volcanic ash on the compressive strength of concreteand normal density. Experimental studies using methods and analytical techniques using a quantitativeanalysis of regression. Variables in the study were (1) the dependent variable: the strength of concrete incompression and the density of concrete, (2) independent variables: the variation of 0%, 10%, 15%, 20%and 25% Volcanic ash from the total weight of the sand. The sampel is in the form of a cylinder with adiameter of 150 mm and a height of 300 mm. Based on the results of the study concluded that (1) changesin volcanic ash as a partial replacement of the fine aggregate strong overall influence on the compressivestrength and density of concrete, (2) the optimal value of compressive strength and the weight of eachtype of concrete which is the variation of volcanic ash 8,36% amounted to 23,231 MPa, 11,889% to22,919 MPa, (3) the value of the optimal concrete mixture as a whole, to namely the variation of volcanicash 11,889% (4) in the form of teaching material to supplement teaching materials using Kelud volcanicash as a partial replacement of fine aggregate on in terms of compressive strength concrete and density.Key words: normal concrete, volcanic ash, compressive strength, density
Co-Authors Roemintoyo Roemintoyo Sri Sumarni