Mechanical and Physical Properties of Glass Fiber and Fly Ash Added Cement Bonded Composites

Abstract

In this study, the changes in the mechanical and physical properties of cement-bonded composites containing fly ash with different characters at high and low rates were investigated with varying proportions of glass fiber reinforcement. F and C class fly ash was added to the mixture in varying proportions (10%, 20%, 50%, 60%) by cement replacement method. In addition, 16 different mixtures containing fly ash were obtained by including glass fiber in two different ratios (10%, 20%).For control, fly ash was not used in the reference samples, and two different reference mixtures were prepared with two different fiber ratios. As a result of the experiments, it was observed that the strength properties were higher in the samples containing Class C fly ash. Depending on the changing glass fiber ratio, as the fiber ratio increased, an increase was observed in flexural strength, while a decrease incompressive strength was observed. In the permeability tests including water absorption tests, it was observed that the samples containing Class F fly ash generally gave better results than the samples containing Class C fly ash. In addition, the increase in permeability values due to the increase in the glass fiber ratio is among the results obtained.