Abrasion resistance of glass fiber silica fume concrete

The use of glass fiber in silica fume concrete has become a topic of extensive research in recent times. By using industry-standard tests for compressive strength, flexural strength and abrasion resistance, the engineering parameters of glass fiber silica fume concrete have been assessed. Present study examines how glass fiber and silica fume in concrete affect the ability of the material to withstand wear. The percentage replacement of cement with silica fume by mass was in six different concrete mixes i.e. 0, 5, 7.5, 10, 12.5, and 15%. 10% silica fume, which was substituted with cement mass, was mixed for natural aggregate and recycled concrete aggregate. Four additional fiber-reinforced ordinary Portland cement (OPC 43-grade) concrete mixes with varying fiber contents (0-2%) were prepared for glass fiber on a volume basis. For each concrete mix, the proportion of water to cement /cementitious materials remained unchanged. The concrete mixes were tested at 28 days for compressive strength, flexural strength, and surface abrasions. The results of the laboratory work showed that replacement of cement with Silica Fume increase abrasion resistance, compressive strength, flexural strength and split tensile strength of concrete. The abrasion hardness of concrete was increased by the use of glass fiber. The comparison between abrasion versus compressive strength and abrasive versus flexural strength is plotted on a log scale in terms of R2 of the linear regression. The correlation coefficients (R2) for abrasion versus compressive strength and abrasion versus flexural strength are 0.9003 and 0.8534 respectively. As a result, it was found that the strongest relationship exists between abrasion and flexural tensile strength rather than between abrasion and the compressive strength of glass fiber silica fume concrete.