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论冬季混凝土施工裂缝

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摘要 混凝土是一种非匀质脆性材料,由骨料、水泥胶结材料以及存留其中的气体和少量水分组成。在温度和湿度变化条件下,硬化并在其过程中产生体积变形,由于各种材料变形大小不一、互相约束而产生初应力,造成在骨料与水泥石粘结面或水泥石本身之间出现肉眼看不见的微细裂缝。
作者 方其杭 郭猛
出处 《黑龙江科技信息》 2007年第10S期276-276,共1页 Heilongjiang Science and Technology Information
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