Based on test data, the formula correlative of time required for soil's expansive capacity, expansive speed rate and expansive deformation with initial moisture content is established.
根据膨胀变形试验结果，建立了膨胀土的膨胀量、膨胀速率以及膨胀变形所需时间与起始含水量的相关公式。
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 limit bearing capacity is 8%more than that of common CFST.
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。
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