苏 骏1,2,周 翔1,郭 锋1
苏骏,周翔,郭锋.钢-PVA混杂纤维高韧性混凝土力学与碳化性能试验研究[J].混凝土与水泥制品,2020(12):50-54.
SU J,ZHOU X,GUO F.Study on Mechanical Properties and Carbonization Performance of Steel -PVA Hybrid Fiber High Toughness Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):50-54.
钢-PVA混杂纤维高韧性混凝土力学与碳化性能试验研究
苏 骏1,2,周 翔1,郭 锋1
苏骏,周翔,郭锋.钢-PVA混杂纤维高韧性混凝土力学与碳化性能试验研究[J].混凝土与水泥制品,2020(12):50-54.
SU J,ZHOU X,GUO F.Study on Mechanical Properties and Carbonization Performance of Steel -PVA Hybrid Fiber High Toughness Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):50-54.
摘 要:研究了不同体积掺量的钢纤维和PVA纤维对不同碳化龄期下钢-PVA混杂纤维高韧性混凝土的抗碳化性能以及碳化后力学性能的影响,考虑了水泥、粉煤灰、碳化等多因素效应和纤维体积分数对混凝土碳化深度的影响,并提出了钢-PVA混杂纤维高韧性混凝土碳化深度预测模型。结果表明:纤维的掺入提高了混凝土强度及抗碳化性能,且1.0%钢纤维与0.10%PVA纤维的混掺效果最好;提出的碳化预测模型精度较高,可为混凝土碳化深度的预测提供参考。
Abstract: The effects of different volume of steel fiber and PVA fiber on the carbonization resistance and mechanical properties of steel-PVA hybrid fiber high toughness concrete under different carbonization ages were studied. Considering the multi-factor effects such as cemen, fly ash, carbonization and fiber volume fraction on the carbonization depth of concrete, a carbonization depth prediction model for steel-PVA hybrid fiber high toughness concrete was put forward. The results show that the incorporation of fibers improves the strength and carbonization resistance of concrete, and 1.0% steel fiber and 0.10% PVA fiber have the best blending effect. The carbonization depth prediction model has high accuracy and can provide a reference for the prediction of concrete carbonization depth.
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