International Journal of Value Engineering

Discussion on solving cementitious grout for rebar sleeve splicing backflow problem during sleeve grouting based on TRIZ theory

Xiaowen Rao

Architectural Engineering Department, Guangxi Technological College of Machinery and Electricity, Nanning 530007, China

DOI: https://doi.org/10.59429/ijve.v1i1.8264

Keywords: sleeve of rebar; grouting; TRIZ; cementitious grout backflow; prefabricated monolithic concrete building

---

Abstract

In response to the construction technical problem that the grout is prone to back flow during the grouting process of the steel sleeve grouting connection joint of the assembled integral concrete structure, the problem solving process is first analyzed using TRIZ theory, and then the creative solution is obtained using tools such as final ideal solution, causal analysis, resource analysis, contradiction analysis, physical field analysis, and innovative design software. Finally, the creative solution is evaluated and a series of simple and feasible solutions that are worth further research are proposed, such as expanding the grouting sleeve, placing the grouting material in a magnetic field in advance, ultrasonic vibration of the grouting material, and automatic sealing of the grouting opening. This provides ideas for solving the problem of slurry backflow, and also provides a reference for the application of TRIZ theory in the field of civil engineering.

---

References

1. Gao Rundong, Li Xiangmin, Xu Qingfeng. Problems and Solution Strategies of Grouting for Assembled Integral

Concrete Building Sleeves [J]. Construction Technology, 2018, 47 (10): 1-4, 10

2. Chen Weining, Shi Xiaohu, Zhou Lei, et al. Research on grouting technology and equipment for prefabricated

component node sleeves [J]. Construction Mechanization, 2017, 38 (08): 41-42

3. Mok H S, Kim H J, Moon K S. Disassemblability of Mechanical Parts in Automobile for Recycling[J]. Computer

Industry Engineering, 1997, 33:621-624.

4. Sun Yongwei, Sergei Ikwanko from the United States TRIZ opens the door to innovation with a golden key-I [M].

Beijing: Science Press, 2015

5. Yan Huigeng, Zhao Haoyu. Improving Technological Innovation Methods - TRIZ Process and Tools [M]. Beijing:

Chemical Industry Press, 2012

6. China Construction Education Association, Far East Residential Industry Group Co., Ltd. Collection of Key Points

for Prefabricated and Prefabricated Building Construction [M]. Beijing: China Construction Industry Press, 2018

7. Technical Specification for Prefabricated Concrete Structures (with Commentary): JGJ 1-2014 [S]. 2014

8. Technical specification for application of steel bar sleeve grouting connection (with article explanation): JGJ 355-

2015 [S]. 2015

9. Ministry of Housing and Urban Rural Development of the People's Republic of China. Sleeve grouting material

for steel bar connection: JG/T 408-2019 [S]. 2019