Cu^(2+)掺杂对C_4AF水化性能的影响  

Effect of Cu^(2+) Doping on Hydration Properties of C_4AF

作　　者：邓青山 饶美娟 曾浪 曹禹 陈志坚 DENG Qing-shan;RAO Mei-juan;ZENG Lang;CAO Yu;CHEN Zhi-jian(State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China;School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070 [2]武汉理工大学材料科学与工程学院,武汉430070

出　　处：《硅酸盐通报》2019年第4期937-941,共5页Bulletin of the Chinese Ceramic Society

基　　金："十三五"国家重点研发项目(2016YFB0303501);国家自然科学基金青年基金(51709209)

摘　　要：海洋工程服役环境严峻,氯离子侵蚀是工程破坏严重的因素之一。C_4AF作为固化氯离子的重要成分,它本身及水化产物和氯离子反应生成F盐。以提高C_4AF水化性能为目的,向C_4AF中掺杂入不同含量的CuO以引进Cu^(2+)。通过混料、压片、煅烧、研磨等工序,对C_4AF的3 d和28 d水化产物进行了XRD、SEM、水化热和核磁测试,探究Cu^(2+)对其水化性能的影响。结果发现,适量CuO的掺入有利于提高C_4AF水化性能,促进早期水化,最佳掺量出现在1. 0%附近。The marine engineering environment is severe, and chloride ion erosion is a serious damage factor. As an important component of solidified chloride ions, C4AF reacts itself with hydration products and chloride ions to form F salts. In order to improve the hydration performance of C4AF, different amounts of CuO were doped into C4AF to introduce Cu^2+. XRD, SEM, hydration heat and nuclear magnetic tests were carried out on the 3d and 28d hydration products of C4AF through mixing, tableting, calcination and grinding processes to investigate the effect of Cu^2+ on its hydration performance. The result shows that the incorporation of an appropriate amount of CuO is beneficial to improve the hydration performance of C4AF and promote early hydration, and the optimum dosage appeares around 1.0%.

关 键 词：C4AF Cu^2+掺杂 水化热 水化性能 

分 类 号：TU528[建筑科学—建筑技术科学]