ON THE UTILIZATION OF BAUXITE OF POOR QUALITY
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition1990年第2期
论文作者：余其俊 童大懋 易帆 周宗辉
文章页码：49 - 59
摘 要：<正> One kind of energy saving and high early strengthcement can be produced by using bauxite of poorquality which is refuse before. Through a series ofexperiments proper chemical compositions of the cementare obtained, and the cement clinker is sintered at alow temperature （1250℃） by the use of the bauxite tothe utmost limit. The results show, the cement notonly has high early strengths but also has a goodcharacteristic of resisting corrosion by sulphate.So it will be of great practical use. The hydraulicproperties of C4 AF are always problematical, it isstudied again in this paper, showing that CkAF hasgood hydraulic properties exactly; Cr3+, Ni3+ and Ti4+can promote the formation of C4AF and increase itsearly strengths; CaSO4·2H20 can also improve its 3days’ strength but retard its hydration rate espe-cially in early ages.
余其俊，童大懋，易帆，周宗辉
摘 要：<正> One kind of energy saving and high early strengthcement can be produced by using bauxite of poorquality which is refuse before. Through a series ofexperiments proper chemical compositions of the cementare obtained, and the cement clinker is sintered at alow temperature （1250℃） by the use of the bauxite tothe utmost limit. The results show, the cement notonly has high early strengths but also has a goodcharacteristic of resisting corrosion by sulphate.So it will be of great practical use. The hydraulicproperties of C4 AF are always problematical, it isstudied again in this paper, showing that CkAF hasgood hydraulic properties exactly; Cr3+, Ni3+ and Ti4+can promote the formation of C4AF and increase itsearly strengths; CaSO4·2H20 can also improve its 3days’ strength but retard its hydration rate espe-cially in early ages.
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