水泥基灌漿料基本力學(xué)性能試驗(yàn)研究*
吳元，王凱，楊曉婧，魏彬
- 摘 要
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（建研科技股份有限公司， 北京 100013）［摘要］通過(guò)201個(gè)立方體試件及89個(gè)棱柱體試件的力學(xué)性能試驗(yàn)，研究了水泥基灌漿料類(lèi)型、加水量、豆石含量對(duì)水泥基灌漿料力學(xué)性能的影響。試驗(yàn)結(jié)果表明，水泥基灌漿料的四個(gè)力學(xué)指標(biāo)（立方體抗壓強(qiáng)度、軸心抗壓強(qiáng)度、劈裂抗拉強(qiáng)度、彈性模量）基本隨豆石含量的增大而增大，隨加水量的增大而減??；抗壓強(qiáng)度高的水泥基灌漿料的各力學(xué)指標(biāo)大于抗壓強(qiáng)度低的水泥基灌漿料的各力學(xué)指標(biāo)；水泥基灌漿料的劈裂抗拉強(qiáng)度高于普通混凝土的劈裂抗拉強(qiáng)度。最后，基于試驗(yàn)數(shù)據(jù)，給出了水泥基灌漿料的尺寸效應(yīng)、強(qiáng)度轉(zhuǎn)化及齡期強(qiáng)度計(jì)算公式。［關(guān)鍵詞］水泥基灌漿料; 力學(xué)性能; 尺寸效應(yīng); 強(qiáng)度轉(zhuǎn)化; 齡期強(qiáng)度中圖分類(lèi)號(hào)：TU528.31 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：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”國(guó)家科技支撐計(jì)劃項(xiàng)目（2012BAJ06B07）。作者簡(jiǎn)介：吳元，博士，Email：ansysman@163.com。參考文獻(xiàn)［1］JC/T 986—2005水泥基灌漿材料［S］. 北京:中國(guó)建材工業(yè)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 水泥基灌漿材料施工技術(shù)規(guī)程［S］. 北京: 冶金工業(yè)出版社, 1998.［5］GB/T 50448—2008 水泥基灌漿材料應(yīng)用技術(shù)規(guī)范［S］. 北京: 中國(guó)計(jì)劃出版社, 2008.［6］GB/T 5008—2002 普通混凝土力學(xué)性能試驗(yàn)方法標(biāo)準(zhǔn)［S］. 北京: 中國(guó)建筑工業(yè)出版社, 2002.［7］過(guò)鎮(zhèn)海,時(shí)旭東. 鋼筋混凝土原理和分析［M］. 北京: 清華大學(xué)出版社, 2003.［8］GB 50010—2010混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京: 中國(guó)建筑工業(yè)出版社, 2011.［9］江見(jiàn)鯨. 混凝土結(jié)構(gòu)工程學(xué)(上冊(cè))［M］. 北京:中國(guó)建筑工業(yè)出版社, 1998.
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