再生骨料自密实堆石混凝土墙体的力学性能研究

Mechanical Properties Study on Recycled Aggregate-filled Self-compacting Concrete Wails

研究了再生骨料自密实混凝土堆石墙体在静荷载作用下的力学性能及破坏形态,结果表明,再生骨料自密实混凝土墙体具有较高的承载力,特别是抗压强度远远大于普通毛石砌体,而且自密实混凝土和再生骨料之间的粘结性能良好;其破坏形态与天然大直径骨料堆石混凝土相近,破坏性质亦属于脆性破坏,但下降段较缓。再生骨料自密实堆石混凝土可取代普通毛石砌体,其工程应用前景广阔。

The failure mode and mechanical properties of recycled aggregate-filled self-compacting concrete wall under static load are studied. The results show that the recycled aggregate self-compacting concrete wall can bear higher load than ordinary rubble stone masonry, especially its compressive strength, and it has good bonding properties between self-compacting concrete and recycled aggregates. Its failure mode is similar with the big natural aggregate-filled concrete＇s. Its destruction property belongs to brittle failure, but the stress-strain curve decreases slowly. Therefore, recycled aggregate-filled self-compacting concrete can replace ordinary rubble stone masonry and has further engineering application prospect.