剑麻纤维增强珊瑚混凝土抗拉性能研究

摘要

研究了珊瑚混凝土水灰比为0.4，剑麻纤维掺量分别为0 kg／ m3，1.5 kg／ m3，3 kg／ m3，4.5 kg／ m3和6 kg／ m3时，试块在3 d，7 d，14 d，21 d，28 d 时的立方体抗压强度和劈裂抗拉强度。试验结果表明当剑麻纤维掺量为3 kg／ m3时，珊瑚混凝土试块的劈裂抗拉强度提高幅度最大。%The paper researches the water-cement ratio of the coral concrete is 0. 4,the mixing volumes of the sisal fiber are 0 kg/ m3 ,1. 5 kg/ m3 , 3 kg/ m3 ,4. 5 kg/ m3 and 6 kg/ m3 ,calculates the cube crushing strength and splitting tensile strength for the trials in 3 d,7 d,14 d,21 d and 28 d,and proves by the test results that the splitting tensile strength can be improved maximally for the coral concrete trial when the mixing volume of the sisal fiber is 3 kg/ m3 .