套筒灌浆料的研制及应用效果评价

关键字：套筒灌浆料；半套筒灌浆连接接头；应用效果

（江苏尼高科技有限公司，江苏 常州  213141）

    摘要：通过试验分析了胶砂比、偏高岭土、减水剂、膨胀剂等对套筒灌浆料的流动度、强度、膨胀率等性能的影响，确定套筒灌浆料的最优胶砂比为5∶5，掺入3.0%的偏高岭土可明显提高套筒灌浆料的后期强度，减水剂、膨胀剂用量分别为胶凝材料的0.30%、10.0%，改善套筒灌浆料的流动度及膨胀率，形成套筒灌浆料的最佳配合比，并按JGJ 355—2015对钢筋半套筒灌浆连接接头的力学性能进行测试，评价套筒灌浆料的应用效果。

    关键词：套筒灌浆料；半套筒灌浆连接接头；应用效果

    中图分类号：TU57+8.1        文献标识码：A        文章编号：1001-702X（2018）05-0071-03

 

Development of sleeve grouting material and application effect evaluation

WU Kaisheng，ZHAO Dajun，SONG Yujuan

（Jiangsu NIGAO Technology Co. Ltd.，Changzhou 213141，China）

   Abstract：Through the experimental analysis of the influence of cement sand ratio，metakaolin，water reducing agent and expansion agent on the sleeve grouting material fluidity，strength and expansion rate，determine the optimal cement sand ratio of sleeve grouting material was 5∶5，adding 3.0% metakaolin can significantly improve the later-stage strength of the sleeve grouting material，the content of water reducing agent and expansion agent were 0.30% and 10.0% of cementitious materials，respectively，to improve the sleeve grouting material fluidity and expansion rate，forming the best fit sleeve grouting material ratio，and according to the standard JGJ 355—2015 to test the mechanical properties of steel half sleeve grouting joint，and the application effect of the sleeve grouting material was evaluated.

    Key words：sleeve grouting material，half sleeve grouting connection joint，application effect