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山东大学学报(工学版) ›› 2016, Vol. 46 ›› Issue (5): 102-109.doi: 10.6040/j.issn.1672-3961.0.2015.391

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硅灰粉煤灰对喷射混凝土性能影响

张露晨,李树忱*,李术才,廖麒凯   

  1. 山东大学岩土与结构工程研究中心, 山东 济南 250061
  • 收稿日期:2015-11-30 出版日期:2016-10-20 发布日期:2015-11-30
  • 通讯作者: 李树忱(1973— ),男,山东济南人,教授,博士,主要研究方向为深部岩体力学及岩土工程支护. E-mail: geoscli@163.com E-mail:zhangchen411@163.com
  • 作者简介:张露晨(1988— ),男,山东菏泽人,博士研究生,主要研究方向为隧道支护. E-mail: zhangchen411@163.com
  • 基金资助:
    国家自然科学基金资助项目(51379113、51134001);教育部高等学校博士学科点博导类专项科研基金资助项目(20120131110031);新世纪优秀人才资助项目(NCET-12-2012);山东省杰出青年基金资助项目(201313JQE27042);山东大学自主创新基金资助项目(2014YQ005)

Effect on the performance of shotcrete mixed with silica fume and fly ash

ZHANG Luchen, LI Shuchen*, LI Shucai, LIAO Qikai   

  1. Research Center of Geotechnical &
    Structural Engineering, Shandong University, Jinan 250061, Shandong, China
  • Received:2015-11-30 Online:2016-10-20 Published:2015-11-30

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摘要： 为了解决现场喷射混凝土普遍存在强度低、喷层易开裂、回弹量大、粉尘浓度高等问题,在喷射混凝土中加入不同掺量的硅灰、粉煤灰替代水泥,并通过室内试验和现场试验研究硅灰、粉煤灰对添加铝酸盐液态速凝剂喷射混凝土性能的影响。结果表明:铝酸盐液态速凝剂掺量为3%时,凝结效果最好;单掺8%的硅灰能有效促进铝酸盐液态速凝剂的凝结效果,提高混凝土强度,增加粘聚性;单掺粉煤灰可以降低速凝剂的促凝效果、降低混凝土强度、提高和易性。硅灰、粉煤灰和铝酸盐液态速凝剂混掺,对混凝土1 d抗压强度影响由主到次为粉煤灰掺量>速凝剂掺量>硅灰掺量,28 d抗压强度影响由主到次为速凝剂掺量>硅灰掺量>粉煤灰掺量,从而得出三者最佳组合。并结合新型喷射工艺进行现场试验,得出最佳组合能有效减少水泥用量、提高喷射混凝土强度、减少开裂、降低回弹和粉尘的结论。

关键词: 喷射混凝土, 硅灰, 正交试验, 粉煤灰, 围岩稳定, 铝酸盐液态速凝剂

Abstract: To solve the problems of shotcrete in the field, such as the low strength, much cracking, high rebound and dust concentration, adding different mass ratio of silica fume and fly ash to replace the cement in the shotcrete, the influence of silica fume and fly ash on the performance of shotcrete with aluminate liquid accelerator was studied through laboratory and field tests. The results showed that the coagulation effect was the best when the dosage of aluminate liquid accelerator was 3% of cementing material. A silica fume dosage of 8% could effectively promote the coagulation effect of aluminate liquid accelerator, and improve the strength and the cohesiveness of concrete. The addition of fly ash could reduce the coagulation effect of accelerator, reduce the strength and improve the workability of concrete. The addition of silica fume, fly ash and aluminate liquid accelerator affected the 1d compressive strength of concrete, and the order of influence factors was fly ash content>accelerator dosage>silica fume content. The order of influence factors for 28 d compressive strength of concrete was accelerator dosage>silica fume content>fly ash content. Based on the above analyses, the optimal proportion was obtained. Combined with a new spraying technology in-situ, the best combination could effectively reduce cement amount, improve shotcrete strength, reduce cracking, and lower rebound and dust.

Key words: fly ash, aluminate liquid accelerator, silica fume, shotcrete, orthogonal experiment, surrounding rock stability

中图分类号: 

  • U45
[1] 李树忱,冯丙阳,马腾飞,等. 隧道格栅拱架喷射混凝土支护力学特性[J]. 煤炭学报,2014,39(S1):57-63. LI Shuchen, FENG Bingyang, MA Tengfei, et al. Mechanics behavior of lattice girder reinforced shotcrete support for tunnels[J]. Journal of China Coal Society, 2014, 39(S1): 57-63.
[2] 吕国仁,张寿龙. 隧道浅埋偏压段超前预测与围岩稳定控制研究[J]. 山东大学学报(工学版),2012,42(5):102-107. LYU Guoren, ZHANG Shoulong. Research on advanced prediction and surrounding rock stability of shallowburied and unsymmetrical loaded section in tunnel excavation[J]. Journal of Shandong University(Engineering Science), 2012, 42(5):102-107.
[3] 刘钦,李术才,李利平,等. 软弱破碎围岩隧道大变形施工力学行为及支护对策研究[J]. 山东大学学报(工学版),2011,41(3):118-125. LIU Qin, LI Shucai, LI Liping, et al. Study of large deformation construction mechanical behavior and support measures of soft rock in a deep buried extra long tunnel[J]. Journal of Shandong University(Engineering Science), 2011, 41(3):118-125.
[4] 李树忱,徐钦健,冯现大,等. 膨胀性土质隧道围岩级别划分与支护对策研究[J]. 山东大学学报(工学版),2012,42(4):79-86. LI Shuchen, XU Qinjian, FENG Xianda, et al. Study on the classifications of surrounding rock and the support measures of the expansive soil tunnels[J]. Journal of Shandong University(Engineering Science), 2012, 42(4):79-86.
[5] 孙克国,张俊濡,李术才,等. 长大隧道穿越张性富水软弱带诱发地表塌陷机理与支护荷载研究[J].山东大学学报(工学版),2011,41(5):97-102. SUN Keguo, ZHANG Junru, LI Shucai, et al. Research on surface subsidence mechanism and supportingload of long tunnel through a tensional water-rich weak zone[J]. Journal of Shandong University(Engineering Science), 2011, 41(5):97-102.
[6] 马井雨,马忠诚,汪澜,等. 无碱无氯液体速凝剂的性能及其作用机理[J]. 武汉理工大学学报,2012,34(12):14-18. MA Jingyu, MA Zhongcheng, WANG Lan, et al. Performance and mechanism of a new alkali-free and chloride-free liquid accelerator[J]. Journal of Wuhan University of Technology, 2012, 34(12):14-18.
[7] MALTESE C, PISTOLESI C, BRAVO A, et al. A case history: effect of moisture on the setting behaviour of a Portland cement reacting with an alkali-free accelerator[J]. Cement and Concrete Research, 2007, 37(6):856-865.
[8] PAGLIA C S B, WOMBACHER F J, BOHNI H K. Influence of alkali-free and alkaline shotcrete accelerators within cement systems: hydration, microstructure and strength development[J]. Materials Journal, 2004, 101(5):353-357.
[9] 李国新,李春梅,周文英,等. 影响铝酸钠液体速凝剂作用效果因素的研究[J]. 混凝土,2005,189(7):54-58. LI Guoxin, LI Chunmei, ZHOU Wenying, et al. Factors affectting the liquid sodium aluminate accelerated agent[J]. Concrete, 2005, 189(7):54-58.
[10] 赵苏,郭兴华,夏义兵,等. 铝酸钠液体速凝剂性能及作用机理[J]. 沈阳建筑大学学报(自然科学版),2009,25(6):1125-1130. ZHAO Su, GUO Xinghua, XIA Yibing, et al. Study on the performance and mechanism of the liquid sodium aluminate accelerated agent[J]. Journal of Shenyang Jianzhu University(Natural Science), 2009, 25(6):1125-1130.
[11] 樊文熙,张振虎,郑永保. 喷射混凝土用高活性细掺料的研制[J]. 煤炭学报,2000,25(2):165-168. FAN Wenxi, ZHANG Zhenhu, ZHENG Yongbao. Research and manufacture about high-activity small admixture in sprayed concrete[J]. Journal of China Coal Society, 2000, 25(2):165-168.
[12] 丁鹏,杨健辉,李燕飞,等. 硅灰粉煤灰对喷射混凝土物理力学性能影响的试验研究[J]. 粉煤灰综合利用,2013(2):3-7. DING Peng, YANG Jianhui, LI Yanfei, et al. Experimental study on physicial and mechanical properties of shotcrete mixed silica fume and fly ash[J]. Fly Ash Comprehensive Utilization, 2013(2):3-7.
[13] LOTHENBACH B, RENTSCH D, WIELAND E. Hydration of a silica fume blended low-alkali shotcrete cement[J]. Physics and Chemistry of the Earth, Parts A/B/C, 2014, 70:3-16.
[14] 董杰,李世凯. 硅灰优化矿井巷道喷射混凝土的应用研究[J]. 现代矿业,2013(4):34-37. DONG Jie, LI Shikai. Application study of optimization of spray concrete for mine laneway with silica fume[J]. Morden Mining, 2013(4):34-37.
[15] 叶东忠. 硅灰对水泥净浆与砂浆性能及砂浆结构影响的研究[J]. 北京工商大学学报(自然科学版),2007,25(6):11-15. YE Dongzhong. Study on effect of silica fume on structure and properties of cement mortar and properties of cement paste[J]. Journal of Beijing Technology and Business University(Natural Science Edition), 2007, 25(6):11-15.
[16] 姬永生,袁迎曙,袁广林,等. 粉煤灰复合水泥对改善混凝土性能的试验研究[J].中国矿业大学学报,2006,35(3):306-310. JI Yongsheng, YUAN Yingshu, YUAN Guanglin, et al. Experimental research on composite portland cement with fly ash to improve concrete performance[J]. Journal of China University of Mining & Technology, 2006, 35(3):306-310.
[17] 鲁丽华,潘桂生,陈四利,等. 不同掺量粉煤灰混凝土的强度试验[J]. 沈阳工业大学学报,2009,31(1):107-111. LU Lihua, PAN Guisheng, CHEN Sili, et al. Strength of concrete with different contents of fly ash[J]. Journal of Shenyang University of Technology, 2009, 31(1):107-111.
[18] 王喆,黄天勇,刘泽,等. 矿物掺合料对掺有速凝剂的水泥砂浆力学性能的影响[J]. 商品混凝土,2014(8):46-48. WANG Ji, HUANG Tianyong, LIU Ze, et al. Effect of mineral admixture on the mechanical properties of cement mortar mixed with accelerator[J]. Ready-mixed Concrete, 2014(8):46-48.
[19] 中国建筑材料科学研究院. JC477—2005喷射混凝土用速凝剂[S]. 北京:中国建筑工业出版社,2005.
[20] 黄润秋,刘卫华. 基于正交设计的滚石运动特征现场试验研究[J].岩石力学与工程学报,2009,28(5):882-891. HUANG Runqiu, LIU Weihua. In-situ test study on characteristics of rolling rock blocks based on orthogonal design[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(5):882-891.
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