Experimental Study on UHPC-Based Grouting Materials and Mechanical Performance of Grouted Splice Sleeve Joints

The prefabricated concrete structure is regarded as the main body of green construction technology, while joint connection components weak link force. In addition, grouting sleeve a widely used method in component joints. effective anchorage reinforcement realized by implementation mechanical bite force, friction force and bonding between reinforcement, material inner wall, respectively. Along these lines, this work, UHPC-based was prepared, its technical performance tested. influence mix proportion length on stress thoroughly investigated carrying out unidirectional tension test eight grout-filled splice sleeves. acquired results show that UHPC containing micro particles possess high strength durability. incorporation steel fibers can further improve compressive flexural strength. However, fluidity will be reduced difficulties induced. For reason, utilization without recommended. joints with meet also requirements, found elastic stage test, indicating higher safety margin.