硅酸盐学报

养护条件对硅钙渣基碱激发胶凝材料性能、反应产物及微观结构的影响

作者：史迪1 张文生1 叶家元1 孙俊民2

单位：1. 中国建筑材料科学研究总院绿色建筑材料国家重点实验室北京 100024 2. 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心呼和浩特 010050

分类号：TQ172.11

出版年,卷(期):页码：2017,45(8):1080-1087

DOI：

摘要：

采用X射线衍射、红外光谱、热重-差示扫描量热分析、压汞法及扫描电子显微镜等手段，分别对恒温潮湿空气(MA)、自然密封空气(SA)、高温潮湿空气(HA) 3种养护条件下，硅钙渣基碱激发胶凝材料的性能及反应产物、微观结构进行研究。结果表明：在3种养护条件下，虽然主要产物均为水化硅铝酸钙凝胶，但试样的致密程度及强度性能不同，其中经HA养护试样的致密程度及强度最高。与MA相比，在HA养护条件下，由于温度提高对碱激发反应的促进作用，产物数量增加，试样的致密程度及强度性能显著提高；在SA养护条件下，虽然温度提高对碱激发反应的促进作用会导致产物数量增加，使试样中毛细孔分布向低孔径方向移动，但由于试样内部相对湿度降低的阻碍作用，因此SA养护对试样致密程度及强度性能的提高作用微弱。

The calcium silicate slag-based alkali-activated cementitious materials were synthesized and cured in moist air (MA), sealed air (SA), steam air (HA), respectively. The mechanical properties, reaction products and microstructure were investigated by X-ray diffraction, infrared spectroscopy, thermogravimetry analysis-differential scanning calorimetry, mercury intrusion porosimetry and scanning electron microscopy. The results show that the main reaction products under three curing conditions are calcium alumina silicate hydrate gels. The density and mechanical properties vary with curing conditions. The specimens cured in HA exhibitthe densest microstructure and optimum mechanical properties. As compared to MA, the content of reaction products in specimens cured in HA increases due to the promotion of elevated temperature, giving rise to the optimization of density and mechanical properties. When cured in SA, despite the fact that a higher temperature contributes to the alkali-activation, as well as the distribution shift of capillary pores to lower diameters, the decrease of inner relative humidity of specimens prevents the alkali-activation. As a result, it is difficult to increase the density and mechanical properties of specimens cured in SA.

基金项目：

国家“863”计划(2012AA06A118)；国家自然科学基金(51402279)资助项目。

作者简介：

史迪(1987—)，男，工程师，博士研究生。

参考文献：

[1]张战军. 从高铝粉煤灰中提取氧化铝等有用资源的研究[D]. 西安: 西北大学, 2007.

ZHANG Zhanjun. Research on extraction of alumina and other useful resources from high aluminium fly ash (in Chinese, dissertation). Xi’an: Northwest University, 2007.

[2]曹慧芳, 孙俊民, 张晓云, 等. 一种利用硅钙渣和电石渣生产硅酸盐水泥的方法[P]. CN Patent, 200810112617.7. 2009–12–02.

CAO Huifang, SUN Junmin, ZHANG Xiaoyun, et al. One method to produce Portland cement with calcium silicate slag and calcium carbide sludge (in Chinese). CN Patent, 200810112617.7. 2009–12–02.

[3]宗燕兵, 李少华, 李宇, 等. 硅钙渣陶瓷的制备与显微矿相分析[J]. 硅酸盐通报, 2015, 34(1): 7–12.

ZONG Yanbing, LI Shaohua, LI Yu, et al. Bull Chin Ceram Soc (in Chinese), 2015, 34(1): 7–12.

[4]刘江, 张建波, 孙俊民, 等. 硅钙渣脱碱处理及作水泥混合材的研究[J]. 新型建筑材料, 2012(12): 37–39.

LIU Jiang, ZHANG Jianbo, SUN Junmin, et al. New Build Mater (in Chinese), 2012(12): 37–39.

[5]张金山, 叶俊沛, 孙俊民, 等. 利用硅钙渣、脱硫石膏、粉煤灰等固体废弃物生产硅酸钙板的试验研究[J]. 新型建筑材料, 2014(1): 54–57.

ZHANG Jinshan, YE Junpei, SUN Junmin, et al. New Build Mater (in Chinese), 2014(1): 54–57.

[6]杨志杰, 孙俊民, 叶家元, 等. 硅钙渣对水泥熟料易烧性的影响[J]. 材料科学与工艺, 2014, 22(6): 41–47.

YANG Zhijie, SUN Junmin, YE Jiayuan, et al. Mater Sci Technol (in Chinese), 2014, 22(6): 41–47.

[7]史迪, 张文生, 孙俊民, 等. 硅钙渣制备碱激发胶凝材料的实验研究[J]. 硅酸盐通报, 2015, 34(8): 2334–2339.

SHI Di, ZHANG Wensheng, SUN Junmin, et al. Bull Chin Ceram Soc (in Chinese), 2015, 34(8): 2334–2339.

[8]史迪, 张文生, 叶家元, 等. 硅钙渣在水泥行业的资源化利用研究[A]//第十三届全国水泥和混凝土化学及应用技术会议暨水泥技术粉煤灰应用交流会[C], 2013: 73.

SHI Di, ZHANG Wensheng, YE Jiayuan, et al. Resourceful utilization of calcium silicate slag in cement industry[A]//13th chemistry and application technology conference of cement and concrete[C], Yinchuan, China PR, 2013: 73.

[9]刘江. 硅钙渣制备水泥和碱激发胶凝材料的研究[D]. 北京: 中国建筑材料科学研究总院, 2015.

LIU Jiang. Research on preparation of cements and alkali-activated cementitious materials with calcium silicate slag (in Chinese, dissertation). Beijing: China Building Materials Academy, 2015.

[10]刘江, 史迪, 张文生, 等. 硅钙渣制备碱激发胶凝材料的机理研究[J]. 硅酸盐通报, 2014, 33(1): 6–10.

LIU Jiang, SHI Di, ZHANG Wensheng, et al. Bull Chin Ceram Soc (in Chinese), 2014, 33(1): 6–10.

[11]SHI Caijun, KRIVENKO Pavel, ROY Della. Alkali-Activated Cements and Concrete[M]. New York: Taylor & Francis, 2006: 127–128.

[12]沈威. 水泥工艺学[M]. 武汉理工大学出版社, 武汉, 1991: 212-214.

SHEN Wei. Cement Technology (in Chinese). Wuhan: Wuhan University of Technology Press, 1991: 212–214.

[13]袁润章. 胶凝材料学[M]. 武汉理工大学出版社, 武汉, 1996: 148–150.

YUAN Runzhang. Binding Materials Science (in Chinese). Wuhan: Wuhan University of Technology Press, 1996: 148–150.

[14]LI Chao, SUN Henghu, LI Longtu. A review: The comparison between alkali-activated slag (Si+Ca) and metakaolin (Si+Al) cements[J]. Cem Concr Res, 2010, 40: 1341–1349.

[15]GARICA-LODEIRO I, PALOMO A, FERNÁNDEZ-JIMÉNEZ A, et al. Compatibility studies between N-A-S-H and C-A-S-H gels. Study in the ternary diagram Na2O-CaO-Al2O3-SiO2-H2O[J]. Cem Concr Res, 2011, 41: 923–931.

[16]林坚钦, 殷素红, 余其俊, 等. 温度对碱激发碳酸盐矿胶凝材料的影响[J]. 硅酸盐学报, 2008, 36(S1): 197–204.

LIN Jianqin, YIN Suhong, YU Qijuan, et al. J Chin Ceram Soc, 2008, 36(S1): 197–204.

[17]王旻. 碱激发胶凝材料的反应产物[J]. 硅酸盐学报, 2009, 37(7): 1130–1136.

WANG Min. J Chin Ceram Soc, 2009, 37(1): 1130–1136.

[18]CRIADO M, FERNÁNDEZ-JIMÉNEZ, PALOMO A. Alkali activation of fly ash. Part III: Effect of curing conditions on reaction and its graphical description[J]. Fuel, 2010, 89: 3185–3192.

[19]李辉, 诸葛丽君, 史诗, 等. NaOH激发粉煤灰基胶凝材料的水化产物[J]. 硅酸盐学报, 2012, 40(2): 234–239.

LI Hui, ZHUGE Lijun, SHI Shi, et al. J Chin Ceram Soc, 2012, 40(2): 234–239.

[20]巩思宇. 养护温度和时间对碱激发偏高岭土基地质聚合物反应过程及性能的影响[D]. 广西: 广西大学, 2012.

GONG Siyu. Effects of curing temperature and time on the geopolymerisation processes and properties of alkali-activated metakaolin-based geopolymer (in Chinese, dissertation). Guangxi: Guangxi University, 2012.

[21]叶家元, 钟卫华, 张文生, 等. 铝土矿选尾矿制备碱激发胶凝材料的性能[J]. 水泥, 2010(6): 5–7.

YE Jiayuan, ZHONG Weihua, ZHANG Wensheng, et al. Cement (in Chinese), 2010(6): 5–7.

[22]BERNAL S. A, PROVIS J L, ROSE V, et al. Evolution of binder structure in sodium silicate-activated slag-metakaolin blends[J]. Cem Concr Compos, 2011, 33: 46–54.

[23]杨南如, 岳文海. 无机非金属材料图谱手册[M]. 武汉: 武汉工业大学出版社, 2000: 84–365.

YANG Nanru, YUN Wenhai. The Handbook of Inorganic Matalloid Materials Atlas (in Chinese). Wuhan: Wuhan University of Technology Press, 2000: 84–365.

[24]FERNÁNDEZ-BERTOS M, SIMONS S J R, HILLS C D, et al. A review of accelerated carbonation technology in the treatment of cement-based materials and sequestration of CO2[J]. J Hazard Mater, 2004, B112: 193–205.

[25]BERNAL S A, PROVIS J L, BRICE D G, et al. Accelerated carbonation testing of alkali-activated binders significantly underestimates service life: The role of pore solution chemistry[J]. Cem Concr Res, 2012, 42: 1317–1326.

[26]张建明. 铝掺杂的水化硅酸钙结构及微观形貌研究[D]. 武汉理工大学, 2011.

ZHANG Jianming. Structure and morphology of aluminum substituted calcium silicate hydrate (in Chinese, dissertation). Wuhan: Wuhan University of Technology, 2011.

[27]BOBROWSKI A, STYPU?A B, HUTERA B, et al. FTIR spectroscopy of water glass - The binder moulding modified by ZnO nanoparticles[J]. Metalurgija, 2012, 51(4): 477–480.

[28]许进. 改性水玻璃的红外光谱分析[J]. 铸造, 2008, 57(8): 834–837.

XU Jin. Foundary (in Chinese), 2008, 57(8): 834–837.

[29]HORGNIES M, CHEN J J, BOUILLON C. Overview about the use of Fourier Transform Infrared spectroscopy to study cementitious materials[A]//BREBBIA C A, KLEMM A ed. Materials Characterisation VI[C]. WIT Transactions on Engineering Sciences, 2013: 251–262.

[30]叶家元. 煅烧铝土矿选尾矿基碱激发胶凝材料及其与温度等的关系和影响机制[D]. 北京: 中国建筑材料科学研究总院, 2015.

YE Jiayuan. A geopolymer synthesized from calcined ore-dressing tailing of bauxite: Its performance depended on temperature and the related mechanism (in Chinese, dissertation). Beijing: China Building Materials Academy, 2015.

[31]傅博, 杨长辉, 程臻赟. 高温对碱矿渣水泥石产物及微结构的影响[J]. 华中科技大学学报: 自然科学版, 2013, 41(5): 34–38.

FU Bo, YANG Changhui, CHENG Zhenyun. J Huazhong Univ Sci Tech: Nat Sci Ed (in Chinese), 2013, 41(5): 34–38.

[32]袁润章. 胶凝材料学[M]. 武汉: 武汉理工大学出版社, 1996: 133–137.

YUAN Runzhang. Binding Materials Science (in Chinese). Wuhan: Wuhan University of Technology Press, 1996: 133–137.

[33]张子明, 周红军, 赵吉坤. 温度对混凝土强度的影响[J]. 河海大学学报: 自然科学版, 2004, 32(6): 674–679.

ZHANG Ziming, ZHOU Hongjun, ZHAO Jikun. J Hohai Univ: Nat Sci (in Chinese), 2004, 32(6): 674–679.

[34]DESCHNER F, LOTHENBACH B, WINNEFELD F, et al. Effect of temperature on the hydration of Portland cement blended with siliceous fly ash[J]. Cem Concr Res, 2013, 52: 169–181.

[35]高原, 张君, 孙伟. 密封养护混凝土内部湿度与收缩的一体化试验与模拟[J]. 建筑材料学报, 2013, 16(2): 203–209, 231.

GAO Yuan, ZHANG Jun, SUN Wei. J Build Mater (in Chinese), 2013, 16(2): 203–209, 231.

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