顾 万1,肖 鹏1,康爱红1,茅 荃2,张兴明3,钱立峰4
顾万,肖鹏,康爱红,等.混掺纤维混凝土桥面铺装材料性能试验研究[J].混凝土与水泥制品,2019(6):53-58.
GU W,XIAO P,KANG A H,et al.Experimental Study on Properties of Mixed Fiber Concrete Bridge Deck Pavement Materials[J].China Concrete and Cement Products,2019(6):53-58.
混掺纤维混凝土桥面铺装材料性能试验研究
顾 万1,肖 鹏1,康爱红1,茅 荃2,张兴明3,钱立峰4
顾万,肖鹏,康爱红,等.混掺纤维混凝土桥面铺装材料性能试验研究[J].混凝土与水泥制品,2019(6):53-58.
GU W,XIAO P,KANG A H,et al.Experimental Study on Properties of Mixed Fiber Concrete Bridge Deck Pavement Materials[J].China Concrete and Cement Products,2019(6):53-58.
摘 要:将玄武岩纤维和聚丙烯纤维以不同体积掺量分别进行单掺和混掺制备C60纤维混凝土,对纤维混凝土进行抗压强度、劈裂抗拉强度、抗折强度、冻融损伤、干燥收缩性能试验,记录不同龄期下相关性能指标的变化差异并与普通混凝土进行对比分析。结果表明,将玄武岩纤维和聚丙烯纤维混掺可以弥补单一纤维的不足,充分发挥两种纤维的不同优势,混掺纤维对混凝土劈裂抗拉强度和抗折强度的提升具有显著效果,纤维混掺可以削弱冻融损伤对混凝土抗压、抗折强度的不利影响,降低混凝土的干燥收缩变形。
Abstract: C60 fiber concrete was prepared by mixing basalt fiber and polypropylene fiber with different volume single mixing and mixing, and the compressive strength, splitting tensile strength, flexural strength, freeze-thaw damage and drying shrinkage performance of fiber concrete were tested. The differences in the performance indicators of different ages were recorded and compared with those of ordinary concrete. The result shows that the blending of basalt fiber and polypropylene fiber can make up for the deficiency of single fiber, and give full play to the different advantages of the two fibers. The mixed fiber has a significant effect on the splitting tensile strength and flexural strength of concrete. The blending can weaken the adverse effects of freeze-thaw damage on concrete compressive strength and flexural strength, and reduce the drying shrinkage deformation of concrete.
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