Experimental Study on High Performance Mortar Using Local Materials and Industrial Wastes

Abstract

Experimental study on high performance mortar using local materials and industrial wastes such as fly ash or FCC results in reducing the price of construction materials and contributing to environmental protection. Control mortar using volume of local sand, not following ASTM standard, of 0.5 can create mortar with compressive strength of 44 MPa at 28 days. Mortar with water by cement ratio (W/C) of 0.4 or 0.42 where 5 to 10% of cement is repalced by fly ash or FCC results in increasing compressive strength from 10.8 to 28.5% within 28 days compared with that of control mortar. Cement replaced by fly ash or FCC by 5 to 10% induces reducing in slump, but workability.

Keywords

• vữa cường độ cao
• tro bay
• fcc
• thể tích cát
• độ bẹt