Aimed at increasing the replacement amount of fly ash in hydraulic mass volume concrete, the poor calcium problem of moderate heat Portland cement-fly ash system was studied.

为了提高水工大体积混凝土中的粉煤灰掺量，研究了中热水泥-粉煤灰体系的贫钙问题。

youdao

Aimed at increasing the replacement amount of fly ash in hydraulic mass volume concrete, the poor calcium problem of moderate heat Portland cement-fly ash system was studied.

为了提高水工大体积混凝土中的粉煤灰掺量，研究了中热水泥-粉煤灰体系的贫钙问题。

youdao