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首页> 外文期刊>American journal of applied sciences >Setting Shrinkage Characteristics of Methyl Methacrylate-Modified Vinyl Ester Polymer Concrete | Science Publications
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Setting Shrinkage Characteristics of Methyl Methacrylate-Modified Vinyl Ester Polymer Concrete | Science Publications

机译：甲基丙烯酸甲酯改性的乙烯基酯聚合物混凝土的凝结收缩特性科学出版物

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> >This study evaluated the setting shrinkage characteristics of Methyl Methacrylate (MMA)-modified vinyl ester polymer concrete with different curing ages, MMA contents and curing temperatures. Results have shown that most of the setting shrinkage developed within 24 h after curing initiation. It was also found that an increase in MMA content led to an almost linear decrease in setting shrinkage, indicating that adding an MMA monomer was an effective measure to reduce the setting shrinkage of MMA-modified vinyl ester polymer concrete. A higher curing temperature tended to result in greater setting shrinkage, indicating that low-temperature curing is beneficial for reducing the setting shrinkage. The magnitude of setting shrinkage observed in vinyl ester polymer concrete was much greater than the drying shrinkage typically observed in ordinary Portland cement concrete but was smaller than the setting shrinkage of polymer concrete incorporating other types of binder.
机译： > >该研究评估了不同固化年龄，MMA含量和固化温度的甲基丙烯酸甲酯（MMA）改性乙烯基酯聚合物混凝土的凝结收缩特性。结果表明，大多数固化收缩在固化开始后24小时内出现。还发现，MMA含量的增加导致凝结收缩率几乎呈线性下降，表明添加MMA单体是降低MMA改性的乙烯基酯聚合物混凝土的凝结收缩率的有效措施。较高的固化温度倾向于导致更大的固化收缩率，表明低温固化有利于降低固化收缩率。在乙烯基酯聚合物混凝土中观察到的固化收缩量比通常在普通波特兰水泥混凝土中观察到的干燥收缩量大得多，但比掺入其他类型粘合剂的聚合物混凝土的固化收缩量小。

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