摘要
Abstract
In order to improve the mechanical and durability of recycled concrete,the effects of basalt fiber content,fiber length and wollaston-ite content on the properties of recycled concrete were studied by orthogonal experiment.The results show that the optimal content of basalt fiber is 0.12%,the length is 24mm and the content of wollastonite is 6%.Compared with the reference group,the compressive strength of A18-3,A24-2 and C18-1 decreased by 3.29%,0.78%and 0.43%,respectively,and the tensile strength increased by 8.15%,4.49%and 3.37%,respectively.The seepage height of specimens A18-3 and A24-2 decreased by 33.02%and 31.60%,respectively,and the relative dynamic elastic modulus increased by 53.76%and 24.09%,respectively.The results show that proper addition of silica ash and basalt fiber can significantly improve the internal pore structure of recycled concrete,thereby enhancing its mechanical properties and durability.关键词
再生混凝土/玄武岩纤维/耐久性Key words
Recycled concrete/Basalt fiber/Durability分类
建筑与水利
