セメント分野に於ける鉱物学的未解決問題

抄録

Portland cement clinker minerals (C₃S=alite, C₂S=belite, C₃A, C₄AF; C=CaO, S=SiO₂, A=Al₂O₃, F=Fe₂O₃) have engaged interests of some mineralogists and their crystal structure analyses are nearly finished. I hope many mineralogists to have interests about the problems on concrete, awaiting analytical solution. They are the expansive action of sulphate waters, the alkali-aggregate reaction, the destructive of high-alumina cement at long ages, the cabonation from concrete surface and the non explosive demolishing agent made from lime.