With the development of urbanization in China,the treatment and effective utilization of construction waste is a key problem that needs to be solved urgently.In order to promote the effective use of recycled concrete in building structures,the tensile properties of recycled concrete were studied.Firstly,the effect of the replacement rate of recycled coarse and fine aggregate on the tensile strength of concrete was studied.Secondly,the relationship between tensile strength and compressive strength of recycled coarse and fine aggregate concrete was studied,and the calculation model of tensile strength of recycled coarse and fine aggregate concrete was established.Finally,the effect of steel fiber on the tensile strength of recycled coarse aggregate concrete was studied.
关键词
再生细骨料/再生粗骨料/再生混凝土/钢纤维/抗拉强度
Key words
recycled fine aggregate/recycled coarse aggregate/recycled aggregate concrete/steel fiber/tensile strength
万方数据