利用高钙粉煤灰生产膨胀水泥的初步研究

The prelinminary study of using high calcium fly ash resource to produce expansive cement

通过对掺加游离氧化钙含量不同的高钙粉煤灰水泥的研究，表明掺入合适的添加物不仅可提高该水泥的强度，而且可调节水泥硬化浆体的膨胀值，使掺高钙粉煤灰水泥的基本性能满足一些膨胀水泥的技术指标，可利用高钙粉煤灰生产膨胀水泥。

The research on the blends of Portland cement and high calcium fly ash with different content of free lime showes that by selecting and adding additives properly we can not only increase the strength gain of this cement, but also control its expansion development on requirement. With this technique we can make this cement meet the technical index of some expansive cement and produce expansive cement by using high calcium fly ash.