再生砖混骨料混凝土柱的小偏心受压性能

通过小偏心受压性能试验对比研究3根的天然骨料混凝土柱和3根同强度全再生砖混骨料混凝土柱，强度分别为C25、C30和C35. 对6根柱进行加载试验，分析再生砖混骨料混凝土柱相比于同强度天然骨料混凝土柱在受力过程、破坏特征、变形能力与承载力等方面的差异. 试验发现，再生砖混骨料混凝土柱在小偏心加载至破坏的过程中，具有与天然骨料混凝土柱相似的3个受力阶段，且符合平截面假定. 与同强度的天然骨料混凝土柱相比，变形较大，但再生砖混骨料混凝土柱的极限承载力略高，原因可能在于两者轴心抗压强度的差异.

Small eccentric compression performance of reinforced concrete column made with recycled brick-mixed aggregate

Three columns made with natural aggregate concrete (NAC column) and three columns made with recycled aggregate concrete containing waste concrete and bricks (RAC column) with strengths of C25, C30, C35 were designed. A small eccentric compression performance test was conducted on six columns to analyze the differences in the stress process, failure characteristics, deformability and bearing capacity between RAC columns and NAC columns of the same strength. In the process of loading to failure, the RAC column shows three stress stages similar to the NAC column, which also accords with the plane section assumption. The deformation of the RAC column is larger compared with the NAC column of the same strength. The ultimate bearing capacity of RAC column is slightly higher, which may be due to the difference in axial compressive strength.