This research aims to test the properties of concrete block mixed with coarse coconut shell ash as aggregates in products. The mix ratios of Portland cement type1 : quarry dust : coconut shell ash : water are 1 : 11 : 0 ...

This research aims to test the properties of concrete block mixed with basalt fragment as aggregates in products. The mix ratios of Portland cement type1 : basalt fragment : water are 1 : 10 : 0.7, 1 : 10.5 : 0.7, 1 : ...