PENGARUH VARIASI AGREGAT KASAR SERAGAM TERHADAP KUAT TEKAN DAN INFILTRASI BETON POROUS DENGAN BAHAN TAMBAH SIKAMENT-NN

Abstract

Porous concrete or no-fitmess congcrete is a type of lightweight concrete that does not use fine agregate so that it has a cavity between aggregates and is conneted to each other. In this study using variations identic coarse aggregate and admixture sikament-NN to add strength and infiltration rate to porous concrete.This study uses variations in identic coarse aggregate passes sieve ¾” restrained sieve ½” and passes sieve ½” restrained sieve 3/8” with the admixture of sikament-NN dose of 0,8%, 1,0% and 1,2%. Consists of 24 cylindrical samples for compressive strength and 8 plateshaped samples for infiltration.In the coarse agregate variation passed sieve ¾” restrained sieve ½” obtained compressive strength values 1,69 MPa, 5,28 MPa, 5,85 MPa and 7,92 MPa for the infiltration rate obtained velues 77.003,89 mm/hour, 93.056,06 mm/hour, 104.412,00 mm/hour and 119.38 mm/hour at the age of 28 hearts. While in the coarse aggregate variation passed the ½” restrained sieve 3/8” the greater compressive strength and infiltration values were, 2,64 MPa, 6,98 MPa, 7,36 MPa and 10,94 MPa for compressive strength and 87.504,42 mm/hour, 110.399,84 mm/hour, 123.866,84 mm/hour and 150.496,20 mm/hour for the infiltration rate. The strength fan trunk infiltration rate continues to increase along with large of sikament-nn