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Volume 35 Issue 8
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FENG Zhi-qiang, KANG Hong-pu, HAN Guo-qiang. Polyurethane grouting materials modified by inorganic salts in coal mines[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(8): 1559-1564.
Citation: FENG Zhi-qiang, KANG Hong-pu, HAN Guo-qiang. Polyurethane grouting materials modified by inorganic salts in coal mines[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(8): 1559-1564.
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Polyurethane grouting materials modified by inorganic salts in coal mines

  • 1. Coal Mining & Design Department, TianDi Science & Technology Co., Ltd., Beijing 100013, China; 2. Beijing Mining Branch, China Coal Research Institute, Beijing 100013, China

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  • Received Date: December 11, 2012
  • Published Date: August 19, 2013
    Graphical Abstract
    • Abstract
  • The traditional polyurethane grouting materials modified by silicate are studied and modified, which retain the excellent mechanical properties of the polyurethane material. The modified polyurethane grouting materials can avoid combustible safety performance shortcomings and is suitable for underground mines. The materials are cured to form three-dimensional interpenetrating network of organic phase (polyurethane network) and inorganic phase (inorganic silicate network). The obtained solidification body has excellent mechanical properties. The modified non-toxic grouting materials have high strength with no impact from environmental humidity, high flash point and non-combustible characteristics. To a certain extent, the modified grouting materials can replace the pure polyurethane grouting materials, and may provide technical support for the modernization of coal enterprises to achieve high yield efficiently.
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  • [1]
    冯志强, 康红普. 新型聚氨酯堵水注浆材料的研究及应用[J]. (岩土工程学报), 2010, 32(3): 375-380.(FENG Zhi-qiang, KANG Hong-pu Developmentapplication of new waterproof grouting materials of polyurethane[J]. KANG Hong-pu Development and application of new waterproof grouting materials of polyurethane[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(3): 375-380. (in Chinese))
    冯志强, 康红普. 破碎煤岩体化学注浆堵水技术研究及示范工程[J].(长江科学院院报), 2009(7): 60-65.(FENG Zhi-qiang, KANG Hong-pu. Technology research of chemical grouting for cracked coalo rock mass and demonstration project[J]. Journal of Yangtze River Scientific Research Institute, 2009(7): 60-65. (in Chinese))
    冯志强. 硅酸盐改性聚氨酯注浆材料在煤矿井下巷道加固的应用[C]// 第十四次全国化学灌浆学术会议交流论文集.北京:中国电力出版社, 2012.(FENG Zhi-qiang. Application of polyurethane grouting material modified by Silicate in roadway of coal mine[C]// Proceedings of the 14th National Conference on chemical Grouting for Exchange.Beijing:China Electric power Press, 2012. (in Chinese))
    戴振东. 聚氨酯黏着性能的试验研究[J]. (南京理工大学学报), 2004(1): 48-51.(DAI Zhen-dong. Experimental studieson the adhesive properties of polyurethane[J]. Journal of Nanjing University of Science and Technology, 2004(1): 48-51. (in Chinese))
    单长兵, 刘元雪. 水玻璃改性聚氨酯注浆料的性能研究[J].建筑科学, 2011(9): 48-51(SHAN Chang-bing, LIU Yuan-xue. Performance of polyurethane grouting material modified by sodium silicate[J]. Building Science, 2011(9): 48-51. (in Chinese))
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