Evaluating the Performance of Fibrous Cement Mortar Containing Chopped Carbon Fiber (C.C.F.)

This work presents an investigative study of the influence of adding chopped carbon fiber (C.C.F.) on the performance of two specified properties of cement mortar, namely; The flexural strength and density, for two (W/C) ratios (0.4 & 0.6). Four cement mortar mixtures were casted for this purpose, these mixtures were divided into two groups according to their (W/C) ratios (0.4 & 0.6), and each group was subdivided into two subgroups according to whether C.C.F. is used or not. It was found that, when C.C.F. is added, the flexural strength and density of the cement mortar mass are increased for both (W/C) ratios, and the percentages of these increases are slightly increased with the increase in (W/C) ratios. It was also found that, when (W/C) ratio is enlarged from (0.4) to (0.6), the flexural strength and density are reduced with and without the existence of C.C.F., and the percentage of this reduction is slightly decreased in the existence of C.C.F.