Effect of magnesium on the structure and chemical composition of calcium silicate hydrate at elevated temperature
Effect of magnesium on the structure and chemical composition of calcium silicate hydrate at elevated temperature
复制标题
高温下镁对水合硅酸钙结构和化学组成的影响
DOI:
10.1016/j.conbuildmat.2019.117925
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发表时间:
2020-04
影响因子:
7.4
通讯作者:
Chen Wei
中科院分区:
文献类型:
--
作者:
Tang Yanjie;Chen Wei
This paper aims to investigate the effect of magnesium on the structure and chemical composition of calcium silicate hydrate at elevated temperature. Magnesium oxide, silica fume and calcium oxide were used in the preparation of MgO modified C–S–H gels with (Ca + Mg)/Si molar ratio of 0.8. The obtained solids were characterized with SEM, TEM-EDS, XRD, FT-IR, TG-DSC and29Si NMR. The results show that the transformation from M–S–H to C–S–H occurs when Mg to Si molar ratio decreases to 0.4. A concentrated distribution of Mg, Si and Ca elements is observed with TEM-EDS, indicating that a new phase magnesium calcium silicate hydrate (M–C–S–H) is possibly formed.
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影响因子:
7.4
作者:
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通讯作者:
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影响因子:
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作者:
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作者:
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通讯作者:
L. Fernández;C. Alonso;A. Hidalgo;C. Andrade