加固用绿色水泥基灌浆料力学性能试验研究
引用文献：
张会芳 ，陈汇鋆 ，颜政伟 ，王联庆， 张占超 ，刘海静， 魏文博 ，王国斌. 加固用绿色水泥基灌浆料力学性能试验研究[J]. 建筑结构，2023，48（05）：68-75.
ZHANG Huifang ，CHEN Huijun ，YAN Zhengwei， WANG Lianqing ，ZHANG Zhanchao ，LIU Haijing ，WEI Wenbo ，WANG Guobin. Experimental study on mechanical performance of green cement-based grouting material for reinforcement[J]. Building Structure，2023,48（05）：68-75.
摘要：为研究建筑、工业废弃物在加固用水泥基灌浆料中的应用，主体胶凝材料是普通硅酸盐水泥P·O42.5,通过设计正交试验，探讨了水胶比、再生细骨料、胶砂比、铁尾矿粉、粉煤灰五个因素对灌浆料基本性能的影响，试验测定了0min和30min的试块流动度，并分别对养护1、3、28d后的试块进行抗折、抗压试验并进行了微观分析。结果表明：在以养护28d为最终强度标准条件下，通过正交极差分析发现水胶比对试块力学性能影响最大，胶砂比影响最小；建筑、工业废弃物能充分应用于加固灌浆料中，能促进水化反应，填充空隙，提高强度。较合理因素水平组合为水胶比0.36,胶砂比1:0.8,再生细骨料掺量40%,铁尾矿粉掺量8%,粉煤灰掺量8%。
关键词：加固；水泥基灌浆料；流动度；抗折强度；抗压强度；
基金：河北省自然科学基金资助项目(E2018404047)；河北省高等学校科学研究项目(ZC2023136)；张家口市重点研发计划“科技冬奥专项”资助项目(20110015D)；河北建筑工程学院创新基金资助项目(XY202209)。
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[2] 张可.高性能灌浆料置换加固混凝土柱受力性能研究与应用[D].南昌：南昌大学，2018.
[3] 张巨松，李宗阳，张娜，等.水泥基灌浆料工作性的实验[J].沈阳建筑大学学报(自然科学版),2013,29(6):1072-1077.
[4] JOSEPH J,ASSAAD,YEHIA DAOU.Cemerititious grouts with adapted theological properties for injection by vacuum techniques[J].Cement and Concrete Research,2014(59):43-54.
[5] 吴元，王凯，杨晓婧，等.水泥基灌浆料基本力学性能试验研究[J].建筑结构，2014,44(19):95-98,6.
[6] 袁广林，李青，李庆涛，等.高性能水泥基灌浆料高温后抗压强度退化规律[J].建筑材料学报，2014,17(3):470-474.
[7] 寇佳亮，胡锦博，马铭，等.氯离子与冻融侵蚀共同作用下水泥基灌浆料力学性能试验研究[J].建筑结构，2020,50(15):100-105,24.
[8] FRANCISCA PEREZ-GARCIA,MARIA DOLORES RUBIO-CINTAS,MARIA EUGENIAPARRON-RUBIO,et al.Advances in the analysis of properties behaviour of cement-based grouts with high substitution of cement with blast furnace slags.[J].Materials (Basel,Switzerland),2020,13(3):561.
[9] 豆莹莹，李晓民，魏定邦.高性能聚合物水泥基灌浆材料设计及性能验证[J].硅酸盐通报，2019,38(5):1448-1455.
[10] HE ZHENGLONG,LI QIFENG,WANG JUNWEI,et al.Effect of silane treatment on the mechanical properties of polyurethane/water glass grouting materials[J].Construction and Building Materials,2016,116(30):110-120.
[11] 黄政宇，钱峰.DSP早强高强灌浆料综合性能研究[J].湖南大学学报(自然科学版),2009,36(8):18-22.
[12] MANU K MOHAN,RADHAKRISHNA G PILLAI,MANU SANTHANAm,et al.High-performance cementitious grout with fly ash for corrosion protection of post-tensioned concrete structures[J].Construction and Building Materials,2021,281(26):122612.1-122612.13.
[13] 郭浩.超早强型聚羧酸减水剂在套筒灌浆料的应用研究[D].济南：山东建筑大学，2017.
[14] 马正先，赵雅萌，肖文帅，等.矿物掺合料对钢纤维灌浆料性能影响试验[J].建筑技术，2021,52(10):1176-1179.
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Experimental study on mechanical performance of green cement-based grouting material for reinforcement
Abstract: In order to study the application of construction and industrial waste in cement-based grouting material for reinforcement, the main cementing material is ordinary portland cement P·O42.5. The effects of five factors including water-binder ratio, recycled fine aggregate, cemilar-sand ratio, iron-tail powder and fly ash on the basic properties of grout were investigated by orthogonal experiment. The fluidity at 0min and 30min, the flexural strength and compressive strength after curing for 1, 3 and 28d were microscopic analyzed. The results show that under the condition of 28d as the final strength standard, through the orthogonal range analysis, it is found that the influence of water-binder ratio is the greatest, and that of cement-sand ratio is the least. Construction, industrial waste can be fully used in the reinforcement grout material, can promote hydration reaction, fill gaps, improve strength. The more reasonable level combination of factors is water-binder ratio 0.36, cemilar-sand ratio 1:0.8, content of reclaimed fine aggregate 40%, content of iron tailings powder 8%, and the content of fly ash 8%.
Keywords: reinforcement; cement-based grouting material; fluidity; flexural strength; compressive strength
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