Shrinkage Performance of Adherence of New Steel Fiber-Reinforced Concrete to Old Concrete

Abstract:

Shrinkage experiments were done to determine the influence of the volume fraction of steel fiber-reinforcement on the bonding behavior between new concrete and old concrete. The mechanics of the model of restricted shrinkage upon the adherence of new steel fiber reinforced concrete to old concrete are described. The results demonstrate that the difference of shrinkage between the new and the old concrete can been reduced by adding steel fiber to the new concrete. The decrease of shrinkage difference reduces the shrinkage force at the adhesive interface, which improves the adhesion of new concrete to old concrete and the magnitude of the decrease of shrinkage difference is correlated to the steel fiber volume fraction.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 3569-3574
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.3569
• Online since: December 2010
• Authors: Hong Qiang Cheng, Dan Ying Gao
• Keywords: Adherence of New to Old Concrete, Model of Restricted Shrinkage, Shrinkage, Steel Fibre Reinforced Concrete (SFRC)

References

[1] Gengying Li. Cement and Concrete Research, Vol. 33(2003), pp.799-806.

[2] Jean-Louis Granju. Interface Science, Vol. 12(2004), pp.381-388.

[3] Pu-Woei Chen, Xuli FU,D.D. l. Chung. Cement and Concrete Research, Vol. 25(1995), No. 3, P. 491-496.

[4] China standard: Test Code for Hydraulic Concrete(SL352-2006), in Chinese.

[5] Liu Jian, Zhao Guo fan. Journal of Dalian University of Technology, Vol. 41(2001), No. 3, pp.339-342, in Chinese.

[6] China standard: Technical Specification for Strengthening Concrete Structures (CECS25: 90), in Chinese.

[7] A.I. Abu-Tair, D. Lavery, etc. Construction and Building Materials, Vol. 14(2000), pp.171-176.

[8] Shi Xianfeng, Liang Zhiguang, Li Jianzhong. Journal of SHIJIAZHUANG Railway Institute, Vol. 11(1998), No. 1, pp.8-13, in Chinese.