文献类型：期刊文献

英文题名：Hydration Properties of Portland Cement Paste with Boron Gangue

作者：Zhao, Quan[1,2];Tu, Jianwei[1];Han, Weiwei[3];Wang, Xi[4];Chen, Youzhi[5]

第一作者：Zhao, Quan

通讯作者：Han, WW[1]

机构：[1]Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Hubei, Peoples R China;[2]Nanyang Inst Technol, Sch Civil Engn, Nanyang 473000, Henan, Peoples R China;[3]Henan Univ Econ & Law, Sch Engn Management & Real Estate, Zhengzhou 450000, Henan, Peoples R China;[4]Henan Tech Coll Construct, Engn Management, Zhengzhou 450000, Henan, Peoples R China;[5]Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Hubei, Peoples R China

第一机构：Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Hubei, Peoples R China

通讯机构：[1]corresponding author), Henan Univ Econ & Law, Sch Engn Management & Real Estate, Zhengzhou 450000, Henan, Peoples R China.|[1048420]河南财经政法大学工程管理与房地产学院;[10484]河南财经政法大学;

年份：2020

卷号：2020

外文期刊名：ADVANCES IN MATERIALS SCIENCE AND ENGINEERING

收录：;EI(收录号：20201608413564);Scopus(收录号：2-s2.0-85083065735);WOS:【SCI-EXPANDED(收录号:WOS:000522979800001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (no. 51478372), National "Twelfth Five-Year" Plan for Science and Technology Support Development Program of China (no. 2014BAB15B01), the Science and Technology Project of Henan Province (no. 182102310797), and the Key Research Projects of Henan Higher Education Institutions (no.20B560003).

语种：英文

外文关键词：Borate minerals - Hydration - Portland cement - Radiation shielding - Setting

摘要：In order to prepare a good radiation shielding concrete with a proper setting time and a high strength, the hydration properties of cement with boron gangue were investigated by the methods of XRD, isothermal microcalorimetry, TG/DSC, and FTIR. The results demonstrated that it was mainly related to the insoluble matter CaB2O4 center dot 4H(2)O and Ca(H2BO3)(2)center dot 4H(2)O that boron gangue could severely inhibit the cement hydration. Boron gangue made a significant retardation on Portland cement hydration with the form of BO33- and BO45-, which caused an obvious retardation of C(3)A and C3S hydration with an insoluble coat and a low solubility of calcium ion in the solution. Therefore, it is important and necessary to take into consideration the chemistry of borates in aqueous and the kind of cement-based or cementitious materials used for radiation shielding concrete with boron or boron compounds, especially for the materials with a high content of C(3)A and C3S.