1 THE ABRASION EROSION RESISTANCE OF CONCRETE CONTAINING BLAST FURNACE SLAG

A hydraulic concrete structure should have abrasion erosion resistance. The abrasion erosion resistance of concrete surface will govern the durability of hydraulic structures. In this study a new developed flow abrasion test apparatus was adopted for test to simulate the abrasion erosion of concrete that takes place in the field. The blast furnace slag was added to partially replace the cement in concrete to improve the abrasion erosion resistance. Five water to binder ratios (w/b) and four slag contents were selected for the test. Test results show that adding slag in concrete can obviously enhance its abrasion resistance. Concrete made with a w/b ratio of 0.35, when the slag content is 45 % will have the best abrasion erosion resistance