抗碳化性能好，干缩率低。
标养水泥砂浆的干缩率明显大于同龄期蒸养水泥砂浆试件。
The dry shrinkage rate of standard curing concrete sand mortar evidently exceeded the steam curing simples at the same age.
结果表明：随粉煤灰掺量的增加，净浆失水率及干缩率随之增大。
The results indicate that with the increase dosage of fly-ash, the loss of water and drying shrinkage of cement paste increase.
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