赤泥-矿渣-石膏-少熟料胶凝材料的初期水化过程

硅酸盐通报 , 2012, 31(4): 766-770.

赤泥-矿渣-石膏-少熟料胶凝材料的初期水化过程

祝丽萍 ^1, , 倪文 ^2, , 高术杰 ^3, , 王中杰 ^4, , 张玉燕 ^5,

1.北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

2.北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

3.北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

4.北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

5.北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

基金项目: 国家自然科学基金资助项目(51074018)

关键词：赤泥-矿渣-石膏-少熟料体系 , 水化 , XPS , SEM , 强度

Early Stage Hydration Process of Cementitious Material Prepared with Red Mud, Slag, Gypsum and Small Smounts of Cement Clinker

赤泥-矿渣-石膏-少熟料胶凝材料在胶结充填过程中表现出良好的保水性及早强、高强等性能,可以作为充填专用胶结剂.本文综合净浆试块的凝结时间、强度发展以及扫面电镜下的微观结构,分析了材料的初期水化过程,并采用XPS研究了不同元素之间旧组合分解和新组合的形成.结果表明水化3h时体系生成Ca(OH)2和凝胶类物质,这些水化产物使得浆体凝结硬化.4h后矿渣中的部分硅氧四面体参与反应,缩聚成了聚合度较高的硅酸盐矿物,净浆试块产生强度.水化6h后,S2 p3/2的结合能大幅增长,体系生成了较多的硫酸盐矿物,它们对强度的发展起到了较大作用.

参考文献

[1]	Shaobin Wang;H.M.Ang;M.O.Tade;Ang;M;O;Tade .Novel Applications Of Red Mud As Coagulant, Adsorbent And Catalyst For Environmentally Benign Processes[J].Chemosphere: Environmental toxicology and risk assessment,2008(11):1621-1635.
[2]	祝丽萍,倪文,张旭芳,黄晓燕.赤泥-矿渣-水泥基全尾砂胶结充填料的性能与微观结构[J].北京科技大学学报,2010(07):838-842.
[3]	祝丽萍,倪文,张旭芳,黄迪,张玉燕.赤泥-矿渣少熟料体系制备全尾砂胶结充填料试验研究[J].金属矿山,2009(11):175-178.
[4]	Leon B;Krassimir G;Ian G .Surface carbonation of synthetic C-S-H samples:A comparison between fresh and aged C-S-H using X-ray photoelectron spectroscopy:original research article[J].Cement and Concrete Research,2008,38:745-750.
[5]	Leon B;Krassimir G;Peter S et al.X-ray photoelectron spectroscopy of aluminium-substituted tobermorite[J].Cement and Concrete Research,2005,35:51-55.
[6]	Seletchi E D;Negrilǎ C;Duliu O G et al.XPS,AES and ESR studies of herǎstrǎu lake sediments.sixth international conference of the balkan physical union[J].Bucharest:AIP conference proceedings,2007,899:411-412.
[7]	Leon B;Andreas S;Krassimir G et al.X-ray photoelectron spectroscopy of the cement clinker phases tricalcium silicate and b-dicalcium silicate[J].Cement and Concrete Research,2003,33:1561-1565.
[8]	Leon B;Krassimir G;Peter S et al.Characterization of crystalline C-S-H phases by X-ray photoelectron spectroscopy[J].Cement and Concrete Research,2003,33:899-911.
[9]	Leon B;Krassimir G;Günter B et al.X-ray photoelectron spectroscopic investigation of nanocrystalline calcium silicate hydrates synthesized by reactive milling[J].Cement and Concrete Research,2006,36:1023-1031.
[10]	Miura Y.;Nanba T.;Matsumoto S.;Kusano H. .X-ray photoelectron spectroscopy of sodium borosilicate glasses[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2001(1):1-14.
[11]	陶文宏,付兴华,孙凤金,杨中喜.地聚物胶凝材料性能与聚合机理的研究[J].硅酸盐通报,2008(04):730-735,739.
[12]	郑娟荣,姚振亚,刘丽娜.碱激发胶凝材料化学收缩或膨胀的试验研究[J].硅酸盐通报,2009(01):49-53.
[13]	Comans R N;Eighmy T T;Elisabeth L .Reference spectra for environmentally important secondary minerals ettringite (Ca6Al2(SO4)3(OH)1226H2O) by XPS[J].Surface Science Spectra,1996,2(04):150-157.

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材料期刊网

赤泥-矿渣-石膏-少熟料胶凝材料的初期水化过程

Early Stage Hydration Process of Cementitious Material Prepared with Red Mud, Slag, Gypsum and Small Smounts of Cement Clinker

参考文献