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一、前言关于粉煤灰和粉煤灰水泥的研究,国内外研究者已做了大量工作,并且取得了很多研究成果。粉煤灰水泥后期强度的增进率大,后期强
I. INTRODUCTION Regarding the research on fly ash and fly ash cement, researchers at home and abroad have done a lot of work and have obtained a lot of research results. Fly ash cement has a large increase rate of late strength and strong late stage