2016年6月下 施工技术 第45卷第12期 CONSTRUCTIONTECHNOLOGY 57 DOI:10.7672/sgjs2016120057 超早强灌浆料黏结性能与抗裂性能试验研究* 张晓平，陈谦²，孙长征3 （1.中国山东国际经济技术合作公司，山东济南250098；2.山东圣输财贸职业学院建筑 工程学院，山东济南250098；3.沈阳建筑大学土木工程学院，辽宁沈阳110168） [摘要】针对3组预埋钢筋和1组对比素加固材料组成的共12个加固材料试块进行室内拉拔试验，综合对比分析 表明加固材料强度和锚固长度是影响钢筋平均黏结力的重要因素，钢筋的埋置深度不同，主要表现出钢筋拔出、钢 筋拉断和钢筋拔出同时根部材料隆起等3种破坏形式，并基于理论分析推导获得试块拉拔试验中平均黏结力计算 公式。
对比掺外加剂灌浆料、未掺外加剂灌浆料和普通混凝土的抗裂性能，结果表明，一定掺量外加剂相互作用及 纤维的阻裂作用，可明显减少其塑性收缩开裂，开裂指数相对较小。
[关键词］建筑材料；灌浆料；拉拔试验；微观形貌；抗裂；性能 [中图分类号】TU52[文献标识码】A[文章编号】1002-8498（2016）12-0057-04 Super-earlyStrengthGroutingMaterialBondingPerformanceand Anti-crackingPerformance Test ZhangXiaoping'，ChenQian²，Sun Changzheng” (1.China Shandong Economic&Technical Cooperation Group Lud.Ji'nan,Shandong250098,China;2.Architecture Engineering Institute,Shandong ShenghanFinance andTrade Vocational College,Ji'nan，Shandong 250098,China; 3.Schoolof CivilEngineering,ShenyangJianzhuUniversityShenyang，Liaoning110168,China;) Abstract:The authors conducted a pull indoors test on 3 groups embedded steel test block and a parison prime reinforcementmaterial specimen，prehensive parative analysis showed that the strength and anchoragelength of the reinforcement materials are the important factors affecting the average bond strength of steel bars. The different steel bar embedment depth mainly showed three failure modes, pulled out of the steel bars，reinforced pull off，pull out while the roots of reinforced material uplift. Based on theory analysis，the author deduced the formula of the block average bond. Anti cracking performance parison of super-early strength grouting materials，not mixing admixtures grouting materials and mon concrete showed that certain dosage of admixture interaction and crack resistance of the fibers can significantly reduce itsplastic shrinkage cracking，cracking indexisrelatively small. Key words;materials;grouting material; drawing test;microstructure; anti-cracking;performance 钢筋混凝土结构的耐久性问题是工程界普遍试验，并着重研究了UHTCC的干燥收缩和早期抗 关注的一个间题，而水泥基材料的黏...
