Effect of silica fume on the thaumasite form of sulfate attack on cement-based materials
Effect of silica fume on the thaumasite form of sulfate attack on cement-based materials
复制标题
硅粉对水泥基材料硫酸盐侵蚀的硅灰石形式的影响
DOI：
10.1007/s11595-017-1718-3
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发表时间：
2017-10
影响因子：
1.6
通讯作者：
Ma Baoguo
中科院分区：
文献类型：
--
作者：
Wang Yingbin;He Xingyang;Su Ying;Huang Jian;Ma Baoguo
在低温硫酸盐条件下，含石灰石水泥会发生碳硫硅钙石型硫酸盐侵蚀。掺加合适的矿物掺合料是提高水泥基材料抗TSA性能的一种较好选择。研究了5 °C下硅灰（SF）在5%MgSO4溶液中增强石灰石水泥砂浆的耐久性能。砂浆，这是浸泡在侵蚀性条件下，制备与2%，4%，6%，8%，和10%的水泥替代SF在固定的水胶比。通过外观、抗压强度、长度和质量变化以及腐蚀产物的分析，评价了SF基试样的抗TSA性能。结果表明，在没有SF的情况下，样品几乎崩解。增加SF掺量可以降低SF砂浆在TSA环境中的劣化程度。砂浆混合物与超过6%的SF仅显示轻微退化的宏观和微观的测试和表征。
Thaumasite form of sulfate attack (TSA) can be observed in cement containing limestone under sulfate condition at low temperature. Mixing with suitable mineral admixture could be a good choice to improve the TSA resistance performance of cement-based materials. We investigated the durability performance of limestone-cement mortars reinforced with silica fume (SF) in 5% MgSO4solution at 5 °C. The mortars, which were immersed in aggressive condition, were prepared with 2%, 4%, 6%, 8%, and 10% cement replacement by SF at a fixed water-to-binder ratio. Appearance, compressive strength, change of length and mass and corrosion products were investigated to evaluate the TSA resistance performance of SF based specimens. The results showed that specimens in the absence of SF almost disintegrated. Increasing SF dosage can reduce the degree of deterioration of SF mortars in TSA environment. Mortar mixtures with more than 6% SF merely show slight degeneration in relation to macroscopic and microscopic tests and characterizations.
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影响因子：
10.5
作者：
S. Tsivilis;G. Kakali;A. Skaropoulou;J. Sharp;R. Swamy
通讯作者：
S. Tsivilis;G. Kakali;A. Skaropoulou;J. Sharp;R. Swamy
影响因子：
11.4
作者：
Q. Zhou;J. Hill;E. Byars;J. Cripps;C. J. Lynsdale;J. Sharp
通讯作者：
Q. Zhou;J. Hill;E. Byars;J. Cripps;C. J. Lynsdale;J. Sharp
DOI：
10.1007/s11595-011-0268-3
发表时间：
2011-07
期刊：
Journal of Wuhan University of Technology-Mater. Sci. Ed.
影响因子：
--
作者：
F. Zhang;B. Ma;Shengxing Wu;Jikai Zhou
通讯作者：
F. Zhang;B. Ma;Shengxing Wu;Jikai Zhou
影响因子：
11.4
作者：
T. Vuk;R. Gabrovsek;V. Kaučič
通讯作者：
T. Vuk;R. Gabrovsek;V. Kaučič
影响因子：
7.4
作者：
A. Skaropoulou;S. Tsivilis;G. Kakali;J. Sharp;R. Swamy
通讯作者：
A. Skaropoulou;S. Tsivilis;G. Kakali;J. Sharp;R. Swamy