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All Journal Portal: Jurnal Teknik Sipil
Syukur Hidayat
Jurusan Teknik Sipil Politeknik Negeri Lhokseumawe
Civil Engineering, Building, Construction & Architecture

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INVESTIGASI KEKUATAN BETON SILINDER GEOPOLIMER ABU AMPAS TEBU Cut Yusnar; Syukur Hidayat
Portal: Jurnal Teknik Sipil Vol 9, No 2 (2017)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v9i2.617

Abstract

The addition of elements such as pozzolan ingredients to concrete mixtures has been proven can increase the value of concrete compressive strength. This study aims to determine the microstructural effect on the replacement of 10% of Portland cement weight with bagasse ash (sugarcane bagasse). Scanning Electromicroscopphy Microscopphy (SEM / EDX) shows the dominant percentage of bagasse ash is Silica element 53% in addition to other elements such as Carbon (C) and Hydrogen (H). The C-S-H unsure bond pattern on concrete mortar shows a Type III bonding pattern at early ages and bonding patterns I and III on mortars that have reached the age of 28 days. Porosity level decreases with increasing age of concrete mortar. With the reduced porosity will increase the density and increase the compressive strength of concrete mortar. This porosity level is lower than that of concrete mortar without the addition of bagasse ash.Key words: Microstructure, silica, concrete mortar, compressive strength, porosity.
Co-Authors Cut Yusnar