RESEARCH ON HYDRATION HEAT OF SILICATE CEMENT UNDER THE ACTION OF PHOSPHOALUMINATES

摘要：

The compressive strength and the exothermic rate and exothermic capacity of hydration process of silicate cement mixed different amount of phosphoaluminate clinker were researched. The results showed that the compressive strength of all ages for the composite cement was higher than that of silicate cement when the mass fraction of phosphoaluminate clinker in composite cement was 3％. When the mass fraction of phosphoaluminate clinker increased to 6％ and 10％,the compressive strength of all ages for the composite cement was lower than that of silicate cement. There were different hydration processes and the mutual effects of hydration products for silicate clinker and phosphoaluminate clinker. The suitable amount (3％) of phosphoaluminate clinker in the composite cement might break the original balance and accelerate the hydrating reactions of C3S、 C2S because of the rapid hydration of phosphoaluminates. When the amount of phosphoaluminate clinker increased (such as 6％ and 10％),the dense hydration products of phosphoaluminates might wrap up the particles of silicate clinker and prevent the silicate particles from further hydration. So the second induction period of the composite cement hydration went on for a long time,which led to a slow hydration and a low early strength for the composite cement.

关键词： Silicate cement Phosphoaluminate Hydration heat

作者: Biao Liu Guo-Fang Zhai Shi-Qun Li Ning Zhang Jia-Shan Hu

作者单位: School of Materials Science and Technology,University of Jinan,Jinan 250022,PR.China School of Materials Science and Technology,University of Jinan,Jinan 250022,PR. China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 1719-1725

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）