HUBUNGAN ANTARA AGREGAT, DENSITY DAN ABERASI DARI KORAL TERHADAP KUAT TEKAN BETON SEMEN

Abbas, Alwis (2010) HUBUNGAN ANTARA AGREGAT, DENSITY DAN ABERASI DARI KORAL TERHADAP KUAT TEKAN BETON SEMEN. JUMPA JURNAL MATEMATIKA DAN PENGETAHUAN ALAM, 5 (2). ISSN 0853-0033

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Abstract

The agregate density and aberration of coral that used as a concrete mixture, and the stress resistance of the concrete has been examined. The coral was taken from Gunung Nago, Batang Kuranji, Pauh, Padang, consist of 88% raw type and l2o/o fine type agregate. It was found that the material density is 2.57 and the aberration is 17.029%. The tested concrete is composed of cement portland (Semen Padang), Duku Sand (standard sand) and coral with ratio l:2:3 and l:2.5:3 respectively and added by enough water, with slump height was 7 cm. The maximum age of concrete was 28 days, with stress resistance (K) 188.08 kglcm2 and 180.38 kglcmz for l:2:3 and l:2.5:3 mixtures respectively. These result fulfill the accepted specification.

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