Journal of the Chinese Ceramic Society, Volume. 51, Issue 5, 1311(2023)
Binding Mechanism and Capacity for AFm and C3AH6 on Premixed and Ingress Chlorides
To investigate the binding capacity and mechanism of AFm and C3AH6 with Cl- ions, high purity AFm and C3AH6 were synthesized with C3A. The mineralogy and morphology of the products after reaction of AFm or C3AH6 with premixed and ingress Cl- ions, and the corresponding binding capacities were characterized. The results show that C3AH6 has a higher Cl- ions binding ability (i.e., up to 75%) with premixed Cl- ions than AFm (i.e., 17%), especially at a relatively low content of premixed Cl- ions. A reaction between Cl- ions and C3AH6 is faster than that between Cl- ions and AFm. The binding product generated by C3AH6 is Friedel’s salt, while those by AFm are Hc, Kuzel’s salt, Friedel’s salt and AFt, which depends on Cl- ions concentration and its introduced manners, via premixed or ingress Cl- ions.
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SUI Lili, HUANG Jiansheng, LI Weiwen, JIANG Zhilv, SU Chenxi, JIANG Xuelei, WANG Yaocheng. Binding Mechanism and Capacity for AFm and C3AH6 on Premixed and Ingress Chlorides[J]. Journal of the Chinese Ceramic Society, 2023, 51(5): 1311
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Received: Aug. 23, 2022
Accepted: --
Published Online: Aug. 13, 2023
The Author Email: Lili SUI (suill@szu.edu.cn)
CSTR:32186.14.