Experiment on tension-compression ratio of polypropylene fiber reinforced concrete
ZHANG Yan-nian
DONG Hao
LIU Xiao-yang
ZHENG Yi
Abstract：Aiming at the problem that the polypropylene fiber has certain influence on the strength and tension-compression ratio of concrete,the cube compressive strength test and splitting tensile strength test of concrete with different fiber contents and different fiber lengths were conducted with the standard test method. The results show that the prediction model for cube compressive strength and splitting tensile strength of polypropylene fiber reinforced concrete is well matched with the test results.The tension-compression ratio of polypropylene fiber reinforced concrete increases with increasing the fiber content from 0 to 0.1%,and decreases with increasing the fiber content from 0.1% to 0.25%.The tension-compression ratio of concrete with 6 mm polypropylene fiber is slightly lower than that of reference concrete,while the tension-compression ratio of concrete with 12 mm polypropylene fiber increases by 5.5%than that of reference concrete.The polypropylene fiber can effectively improve the brittle failure mode of concrete and enhance the toughness of concrete.
Keywords：fiber reinforced concretepolypropylene fibercompressive strengthsplitting tensile strengthtension-compression ratioprediction modelfailure modetoughness
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 104-108 )