【摘要】 配制出了强度性能和工作性能良好的膨胀混凝土 ,研究了该种钢管膨胀混凝土的力学性能 ,分析了钢管限制条件下核心混凝土的膨胀模式。研究结果表明 ,掺加适量膨胀剂的钢管膨胀混凝土具有较优良的力学性能 ,其极限承载力比普通钢管混凝土可提高 8%左右更多还原

【Abstract】 Expansive concrete with good workability and high strength was prepared in this paper. The mechanical properties of expansive concrete filled steel tube (CFST) were measured. The expansion model of concrete core was analyzed. The results show that, when the expansive agent is added properly, the mechanical properties of expansive CFST is better, and its limit bearing capacity is 8% more than that of common CFST.更多还原