Study on properties of fiber reinforced lightweight aggregate concrete and application
WANG Hongzhen
WEN Jiabao
YANG Yongheng
CHENG Jialiang
WU Zhonglei
XIONG Zhenkang
ZHANG Yu
Abstract：Based on lightweight aggregate concrete(LAC)with 0.1%polyester fiber(PET),the effects of steel fiber(SF),carbon fiber(CF)and basalt fiber(BF)on the working performance,dry apparent density and mechanical properties of LAC are studied,and the optimal type and content of composite fiber are determined.In this paper,the best fiber reinforced lightweight aggregate concrete is used as the bottom plate of the steel truss bearing plate,and the bearing capacity test is carried out.The results show that the LAC with 0.8%steel fiber and 0.1%polyester fiber has the best compressive strength,flexural strength and tensile strength,which are 34.0 MPa,4.39 MPa and 6.80 MPa respectively and the ratio of compression to bending and the ratio of compression to tension are the smallest,which greatly improves the bending resistance of LAC.The optimal fiber lightweight aggregate concrete reinforced truss bearing plate has high bearing capacity and small crack width under ultimate load.
Keywords：lightweight aggregate concretepolyester fibersteel fiberfloor bearing platebearing capacity
Publication Date：2025-11-25
Online Publishing Date：2025-12-15(First online date of this platform, not the publication date of the document)
Pages：5( 64-68 )