COMPRESSIVE STRENGTH, WATER PERMEABILITY, AND CHLORIDE ION PENETRATION OF HIGH-VOLUME GROUND BAGASSE ASH CONCRETE
This research aims to study the properties of concrete with high-volume ground bagasse ash (GBA) to replace Portland cement in concrete. The median particle size (d50) of ground bagasse ash was 4.37 micron. GBA was used to replace Portland cement at 35, 50, 65 and 80% by weight of binder in concrete. The water to binder (W/B) ratio was controlled at 0.45 and slumps of fresh concretes were maintained between 15 to 20 cm by using superplasticizer. The properties of concrete including ultimate compressive strength, water permeability, and rapid chloride ion penetration were investigated. The results showed that the concretes using GBA at 35 and 50% by weight of binder to replace Portland cement had the higher ultimate compressive strength than control concrete while the water permeability resistance and rapid chloride ion penetration resistance were better than control concrete. Moreover, the concrete using 65% of GBA to replace Portland cement had the ultimate compressive strength and the water permeability similar to that of control concrete.