水泥基灌浆料基本力学性能试验研究*
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（建研科技股份有限公司， 北京 100013）［摘要］通过201个立方体试件及89个棱柱体试件的力学性能试验，研究了水泥基灌浆料类型、加水量、豆石含量对水泥基灌浆料力学性能的影响。试验结果表明，水泥基灌浆料的四个力学指标（立方体抗压强度、轴心抗压强度、劈裂抗拉强度、弹性模量）基本随豆石含量的增大而增大，随加水量的增大而减小；抗压强度高的水泥基灌浆料的各力学指标大于抗压强度低的水泥基灌浆料的各力学指标；水泥基灌浆料的劈裂抗拉强度高于普通混凝土的劈裂抗拉强度。最后，基于试验数据，给出了水泥基灌浆料的尺寸效应、强度转化及龄期强度计算公式。［关键词］水泥基灌浆料; 力学性能; 尺寸效应; 强度转化; 龄期强度中图分类号：TU528.31 文献标识码：A 文章编号：1002-848X(2014)19-0095-04Experimental study on basic mechanical properties of cementitious groutWu Yuan, Wang Kai, Yang Xiaojing, Wei Bin（CABR Technology Co., Ltd., Beijing 100013, China）Abstract: Based on the mechanical tests of 201 cube specimens and 89 prism specimens, the effects of type of cementitious grout (CG), amount of water and amount of pisolite on the mechanical properties of CG were investigated. The results show that the four mechanical indexes of CG (cubic compressive strength, axial compressive strength, splitting tensile strength, elastic modulus) increase with the increment of pisolite amount, and decrease with the increment of water amount. The mechanical indexes of CG with higher compressive strength are higher than those of CG with lower compressive strength. The splitting tensile strength of CG is higher than that of the normal concrete. Finally, based on the data of mechanical tests, the regression formulas of CG on the size effect, strength transformation and age strength were proposed.Keywords:cementitious grout; mechanical property; size effect; strength transformation; age strength*“十二五”国家科技支撑计划项目（2012BAJ06B07）。作者简介：吴元，博士，Email：ansysman@163.com。参考文献［1］JC/T 986—2005水泥基灌浆材料［S］. 北京:中国建材工业出版社, 2005.［2］PERRET S, KHAYAT K H, GAGNON E, et al. Repair of 130-year old masonry bridge using high-performance cement grout［J］. Journal of Bridge Engineering, 2002, 7(1): 31-38.［3］LOPEZ-ANIDO R, ANTONIS P MICHAEL S, SANDFORD T C, et al. Repair of wood piles using prefabricated fiber-reinforced polymer composite shells［J］. Journal of Performance of Constructed Facilities, 2005, 19(1): 78-87.［4］YB/T 9261—98 水泥基灌浆材料施工技术规程［S］. 北京: 冶金工业出版社, 1998.［5］GB/T 50448—2008 水泥基灌浆材料应用技术规范［S］. 北京: 中国计划出版社, 2008.［6］GB/T 5008—2002 普通混凝土力学性能试验方法标准［S］. 北京: 中国建筑工业出版社, 2002.［7］过镇海,时旭东. 钢筋混凝土原理和分析［M］. 北京: 清华大学出版社, 2003.［8］GB 50010—2010混凝土结构设计规范［S］. 北京: 中国建筑工业出版社, 2011.［9］江见鲸. 混凝土结构工程学(上册)［M］. 北京:中国建筑工业出版社, 1998.
