Effects of soluble magnesium on the structure of calcium silicate hydrate
Effects of soluble magnesium on the structure of calcium silicate hydrate
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可溶性镁对水合硅酸钙结构的影响
DOI:
10.1016/j.conbuildmat.2021.124402
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发表时间:
2021-10
影响因子:
7.4
通讯作者:
Wei Chen
中科院分区:
文献类型:
--
作者:
Yanjie Tang;Katrin Schollbach;H.J.H. Brouwers;Wei Chen
This paper aims to investigate the impact of soluble magnesium on the structure of C-S-H formed at elevated temperature. Magnesium chloride hexahydrate, calcium oxide and silica fume were used in the preparation of Mg2+modified C-S-H. The obtained solid and liquid samples of synthetic C-S-H were characterized with XRD, FTIR, TGA, etc. to investigate the structural features of Mg2+modified C-S-H. Results show that the mineralogical compositions of the synthesized C-S-H are highly related to the initial concentration of Mg2+. Large additions of Mg2+lead to the instability of C-S-H. Meanwhile, magnesium can be incorporated into the structure of C-S-H. A heterogenous distribution of elemental Mg in C-S-H phase on nanoscale is observed.
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影响因子:
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通讯作者:
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