Experimental Study on Modification of Grouting Material for Joints of Prefabricated Buildings
Source abstract
Abstract
Abstract In order to apply grouting material to the joints of fabricated buildings and make it meet the performance demands of low shrinkage, strong bond, and high toughness of joint materials for prefabricated buildings, the expansion agent (EA), neoprene latex (NL), and rubber particles (RP) were used to modify the grouting material, and the effects of different dosages of the three components on the working performance, mechanical properties, and expansion or shrinkage properties of the grouting material were investigated. The results show that the EA decreases the flexural strength-to-compressive strength ratio (FCR) of the grouting material and enhances the vertical expansion rate and bond strength. The dosage of EA and the curing conditions have a significant effect on the expansion rate of the hardened grouting material. The grouting material can still maintain its 0.0022% free expansion rate with a 7% EA dosage at 120 d. The NL significantly inhibits the vertical expansion of the fresh mortar but inhibits the drying shrinkage of the grouting material after hardening, improves the FCR and bond strength; the 7 d bond strength under a 5% NL dosage can reach 4.27 MPa. The RP inhibits the vertical expansion of the fresh mortar and the drying shrinkage after mortar hardening; with the increase of its dosage, the bond strength of the grouting material increases first and then decreases, the 28 d FCS of the grouting material peaked at 0.173 at 10% dosage.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Innovative concrete reinforcement materials · Grouting, Rheology, and Soil Mechanics · Microbial Applications in Construction Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. Bing, C., & Ning, L. (2014). Experimental research on properties of fresh and hardened rubberized concrete. Journal of Materials in Civil Engineering, 26(8), 04014040.10.1061/(ASCE)MT.1943-5533.0000923 ↗
2. Chang, S., Ji, Z., Gao, Y., Guo, Q. (2022). Experimental investigation of high-performance self-levelling low-shrinkage cementitious grout. China Highway, 06, 104–106.
3. Chen, D. (1995). Application of polymer cement mortar in building waterproofing. Proceedings of the National Waterproofing Technology Experience Exchange Meeting and the Third Annual Conference of Waterproofing Technology Professional Committee.
4. Chen, T. (2020). Study on preparation Technology, Mechanical properties and microscopic Mechanism of high performance cement-based grouting material, MS thesis. Guangzhou University.
5. Cherkinski, R. (1987). Polymer cement concrete. China Architecture and Construction Press.
6. Du, Y. (2011). Experimental study and fuzzy evaluation of effect of expansion agent on main properties of concrete, MS thesis. Hehai University.
7. Gao, P. (2020). Research on the performance of sleeve grout for assembled buildings, MS thesis, Anhui University of Architecture.
8. GB/T 50448. (2015). Technical Specification for Application of Cementitious grouting materials. Beijing: China Architecture and Construction Press.
9. GB/T 50080. (2016). Test method standard for performance of ordinary concrete mixtures. China Architecture and Construction Press.
10. GB/T 23439. (2017). Concrete expansion agent. Beijing: China Architecture and Construction Press.
11. GB/T 17671. (2021). Test method for cement mortar strength (ISO) method. China Architecture and Construction Press.
12. Ge, X. (2008). Study on polymer modified high-strength cement mortar, MS thesis. Hunan University.
13. He, F. (2011). Research on polymer modified cement-based repair materials, MS thesis. Central South University.
14. He, Y., & Feng, Y. (2023). Application of grout in bridge repair and reinforcement project. Sichuan Building Materials, 01, 161–163.
15. Hu, W. (2021). Preparation and performance research of high performance grout for semi-flexible pavement. Modern Traffic Technology, 04, 13–16.
16. Huang, P., Lu, W., Zhang, F, Wei, X. (2001). Study on properties and technology of rubber powder modified asphalt mixture. China Journal of Highway and Transportation, S1, 6–9.
17. JGJ/T70. (2009). Standard of test method for basic properties of building mortar. China Architecture and Construction Press.
18. Jiang, H., Yin, Z. (2002). Study on NBS emulsion and cement mortar blending system. Concrete, (02), 29–30+28.
19. Jiang, Z. (2020). Study on preparation and properties of High toughness, Low shrinkage and high crack resistance bonding mortar, MS thesis. Southeast University.
20. Li, M. (2011). Research on polymer modified cement mortar, MS thesis. Chang 'an University.
21. Li, C., Liu, Z., Chen, J., Zhu, J., Zhou, Y. (2020). Study on tensile properties of cement-emulsified bitumen rubber pellet mortar. Bulletin of Silicate, 39(08), 2549–2556.
22. Li, Y. (2005). Research on modified concrete with waste rubber powder. Compilation of papers of the 9th National Cement and Concrete Chemistry and Application Technology Conference. Cement Branch of Chinese Silicate Society, 9, 335–339.
23. Lin, Q., Liu, Z., Yu, L., Zhou, Y., Cui, Y. (2023). Mechanical properties of EP rubber concrete. Journal of Composite Materials, 40(03), 1560–1568.
24. Liu, S., Wang, C. (2008). Effect of grouting materials on Web cracks in prestressed tunnel. Highway, 04, 65–69.
25. Liu, W. (2022). Research on the seismic performance of new grouting sleeve reinforcing bar lap connection force and shear wall, MS thesis. Harbin Institute of Technology.
26. Liu, F., Pan, D., Li, L, Chen, Y. (2008b). Microscopic numerical analysis of stress and strength of rubber concrete. Journal of Building Materials, 48(02), 144–151.
27. Liu, F., Liu, W., He, D., Li, L. (2011). High temperature properties of high-strength concrete modified by rubber powder and fiber. Journal of Building Materials, 14(01), 124–131.
28. Liu, Y., Ren, Y., Tian, W., Hou, Y., Zhang, J. (2022). Effects of different expansion agents on properties of cement-based grout. Journal of Building Materials, 25(03), 307–313.
29. Lu, J., Chen, J., Gan, G., Xu, F. (2016). Development of new high performance cement-based non-shrinkage grouting material. Materials Review, 30(02), 123–129.
30. Oikonomou, N., Mavridou, S. (2009). Improvement of chloride ion penetration resistance in cement mortars modified with rubber from worn automobile tires. Cement and Concrete Composites, 31(6), 403–407.10.1016/j.cemconcomp.2009.04.004 ↗
31. Shi, D. (2011). Properties and application of high strength polymer modified cement mortar, MS thesis. Wuhan University of Technology.
32. Sun, K. (2007). Research on properties of new impermeable joint materials, MS thesis. Northwest A&F University.
33. Wang, R., Wang, P. (2007). Research progress on properties and mechanism of polymer modified cement-based materials. Materials Review, 01, 93–96.
34. Wu, J. (2006). Study on properties of polymer modified mortar, MS thesis. Harbin Institute of Technology.
35. Xie, H. (2001). Study on preparation and properties of new adhesive mortar, MS thesis. Chongqing University.
36. Xie, J. (2021). Preparation and properties of epoxy asphalt caulking material for ballastless track of high-speed railway, MS thesis. Southeast University.
37. Yang, C. (2016). The performance of the nano modified polymer cement base material and repair test research, MS thesis. Zhejiang University.
38. Ye, Q. (2012). Study on setting hardening Mechanism and Microstructure of cement-EP concrete, MS thesis. Chang 'an University.
39. Ye, X., Wu, W., Hou, W., Lei, S., Zhou, Z. (2018). Effect of expander on volume stability of high-strength grouting. Journal of Building Materials, 21(6), 950–955.
40. Yin, Y. (2014). Study on preparation and properties of pavement crack repair materials for normal temperature construction, MS thesis. Chang 'an University.
41. Zhang, H. (2012). Research on deformation and crack resistance of concrete mixed with new expansion materials, MS thesis. Nanjing University of Aeronautics and Astronautics.
42. Zhang, B. (2012). Research on CA mortar modified by waste rubber powder, MS thesis. Chongqing University.
43. Zhou, F., Sun, W., Shao, J., Kong, L., Geng, X. (2020). Experimental study on nano silica modified cement base grouting reinforcement materials. Geomechanics and Engineering, 20(1), 67–73.