Abstract
Light-weight carbon fiber reinforced concrete (CFRC) is a new building material with light weight and high tensile strength. This study aims at obtaining an optimum mix proportion of the CFRC. The used materials are low-shrinkage cement, high-performance pitch-based carbon fibers, silica sands plus Sirasu balloon and some admixtures. The parameters of the experiments are unit cement content, grain size of silica sand, water-cement ratio, fiber volume fraction, fiber length and mix ratio of silica sand and Sirasu balloon. Fiber dispersion, flow and air content of the fresh CFRC, and specific gravity, compressive and flexural strengths of the hardened one were evaluated.
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