The results show that, when the expansive agent is added properly, the mechanical properties of expansive CFST is better, and its maximum bearing capacity is 7% more than that of ordinary CFST.
结果表明，掺加适量膨胀剂的钢管膨胀混凝土具有较优的力学性能，其极限承载力比普通钢管混凝土可提高7%左右。
The results show that, when the expansive agent is added properly, the mechanical properties of expansive CFST is better, and its maximum bearing capacity is 7% more than that of ordinary CFST.
结果表明，掺加适量膨胀剂的钢管膨胀混凝土具有较优的力学性能，其极限承载力比普通钢管混凝土可提高7%左右。
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