【Key words】 expansive agent； chemical admixtures； free expansion rate； restrained expansion rate； compressive strength
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This paper has researched on different kinds of light aggregates as well as positive effect of content of light aggregate to restrained expansion rate of shrinkage compensating concrete.
方法利用测量限制膨胀率的方法观察高铝粉煤灰与硬石膏混合后对水泥砂浆试件的补偿收缩效果。
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