碾压贫混凝土是一种超干硬性混凝土，在国内，其应用于路面基层的工程实例较少。
RCC lean concrete is one kind of super-stiff concrete, and there are only a few engineering examples in which it applied to the pavement base in domestic.
结果表明，贫混凝土的干缩小于普通混凝土，而且掺加优质粉煤灰后，可降低收缩值。
The results indicate that the dry contraction coefficients of lean concrete is less than common concrete, and it will be reduced when the high quality fly ash is added in the lean concrete.
结果表明，贫混凝土的干缩小于普通混凝土，而且掺加优质粉煤灰后，可降低收缩值。
The results indicate that the dry contraction coefficients of lean concrete is less than common concrete, and it will be reduced when the high quality fly ash is added in the lean concrete.
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