硅酸盐学报

AFm阴离子类型对硫铝酸盐水泥水化产物钙矾石稳定性的影响

作者：郝璟珂宋远明王志娟王波

分类号：TU528.2

出版年,卷(期):页码：2019,47(11):0-0

DOI：

摘要：

钙矾石是硫铝酸盐水泥主要水化产物之一，其稳定性对水泥性能影响很大。将碳酸钙、硝酸钙或亚硝酸钠按不同掺量加入硫铝酸盐水泥，并研究了它们对水泥水化、线性膨胀率和抗压强度等影响。结果表明，掺入这3种物质后可生成相应的阴离子单取代水化铝酸钙(AFm)；含硝酸钙或亚硝酸钠净浆线性膨胀率均高于纯硫铝酸盐水泥净浆；含有这3种物质的水泥砂浆56 d龄期抗压强度均高于纯硫铝酸盐水泥砂浆。碳酸钙、硝酸钙或亚硝酸钠可提高硫铝酸盐水泥水化产物钙矾石的稳定性，从而提升水泥性能，其中硝酸钙和亚硝酸钠效果较佳。

基金项目：

国家自然科学基金(No. 51272222)资助项目。

作者简介：

参考文献：

[1] JUENGER M C G, WINNEFELD F, PROVIS J L, et al. Advances in alternative cementitious binders[J]. Cem Concr Res, 2011, 41: 1232–1343.

[2] SIRTOLI D, WYRZYKOWSKI M, RIVA P, et al. Shrinkage and creep of high performance concrete based on calcium sulfoaluminate cement[J]. Cem Concr Compos, 2019, 98: 61–73.

[3] PERA J, AMBROISE J. New applications of calcium sulfoaluminate cement[J]. Cem Concr Res, 2004, 34(4): 671–676.

[4] RUNGCHET A, CHINDAPRASIRT P, WANSON S, et al. Hydrothermal synthesis of calcium sulfoaluminate-belite cement from cement from industrial waste materials[J]. J Clean Prod, 2015, 115(12): 273–283.

[5] 钱觉时, 余金城, 孙化强, 等. 钙矾石的形成与作用[J]. 硅酸盐学报, 2017, 45(11): 1569–1581.

QIAN Jueshi, YU Jincheng, SUN Huaqiang, et al. J Chin Ceram Soc, 2017, 45(11): 1569–1581.

[6] KAKALI G, TSIVILIS S, AGGELI E, et al. Hydration products of C3A, C3S and Portland cement in the presence of CaCO3[J]. Cem Concr Res, 2000, 30: 1073–1077.

[7] PELLETIER-CHAIGNAT L, WINNEFELD F, LOTHENBACH B, et al. Beneficial use of limestone filler with calcium sulphoaluminate cement[J]. Constr Build Mater, 2012, 26: 619–627.

[8] 刘焕芹, 徐志峰, 李维滨, 等. 石灰石粉对硅酸盐水泥水化的影响[J]. 材料科学与工程学报, 2015, 33(2): 185–188.

LIU Huanqin, XU Zhifeng, LI Weibin, et al. J Mater Sci Eng (in Chinese), 2015, 33(2): 185–188.

[9] WEERDT K D, HAHA M B, SAOUT G L, et al. Hydration mechanisms of ternary Portland cements containing limestone powder and fly ash[J]. Cem Concr Res, 2011, 41: 279–291.

[10] SCHÖLER A, LOTHENBACH B, WINNEFELD F, et al. Hydration of quaternary Portland cement blends containing blast-furnace slag, siliceous fly ash and limestone powder[J]. Cem Concr Compos, 2015, 55: 374–382.

[11] FALZONE G, BALONIS M, SANT G. X-AFm stabilization as a mechanism of by passing conversion phenomena in calcium aluminate cements[J]. Cem Concr Res, 2015, 72: 54–68.

[12] FALZONE G, BALONIS M, BENTZ D, et al. Anion capture and exchange by functional coatings: New routes to mitigate steel corrosion in concrete infrastructure[J]. Cem Concr Res, 2017, 101: 82–92.

[13] 姚燕, 王宏霞, 刁桂芝, 等. 硝酸钙对铝酸盐水泥强度及水化性能的影响[J]. 硅酸盐学报, 2019, 47(2): 207–213.

YAO Yan, WANG Hongxia, DIAO Guizhi, et al. J Chin Ceram Soc, 2019, 47(2): 207–213.

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