Study and Application of the Self-Compacting Recycled Pavement Concrete of High early Strength

Abstract:

This paper aimed at the problem of how to rapid repair the military airfield pavement after it be demolished. It adopted the coagulate faster and early strength special cement, superplasticizer and mineral admixture, used the demolished pavement made recycled aggregates, optimized the mix proportion design and studied the performance of self-compacting recycled pavement concrete of high early strength. The laboratory tests and used in field both indicate that the workability of the self-compacting recycled concrete is well, could be constructed conveniently, the 4 hours’ flexural strength after it mixed could achieve more than 2.5MPa and ensure one type plane take off safely, which could fulfill the technique requirements of rapid repair the pavement. The flexural strength could achieve more than 5.5MPa at 28 days, and the recycled concrete felt with the existent pavement well, which could fulfill the long-term requirements of airfield pavement, the concrete also could be used in the rapid repair the cement concrete pavement of civil airfield and highway.

• Periodical: Applied Mechanics and Materials (Volumes 193-194)
• Pages: 910-913
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.193-194.910
• Online since: August 2012
• Authors: Qing Tao Liu, Guo Ping Cen, Liang Cai Cai, Yong Gen Wu, He Sheng Wu, Xiao Jun Liu
• Keywords: Airfield Engineering, Early Strength, Recycled Aggregate (RA), Recycled Concrete (RC), Self-Compacting

References

[1] H Li, Ch W Miao, Zh Q Jin, Repairing Technology for Cement Concrete Pavement, first ed., China Communications Press, Beijing, (1998).

[2] D P Chen, F R Zhao, Ch X Qian, Study and use of high-fluidity and ultra-high early strength repairing concrete, J. China Concrete and Cement Products, 5 (2006) 12-15.

[3] Zh B Wei, T Ch Wang, Y Gao, Experiment on a type of polyurethane concrete possessing early strength and speedily solidification, J. Concrete，9 (2005) 58-63, 88.

[4] GJB 1112A-2004, Construction and acceptance specification for flying area engineering of the military airfield, S.

[5] Q T Liu, Sh T Wang, Y G Wu, et al, Studies on the self-compacting recycled concrete used in rush to repair the airfield pavement, J. Architecture Technology(Supplement), Vol. 38(2007) 320-321, 331.

[6] D Y Xiong, X H Wang. Concrete Admixture, first ed., Chemical Industry Press, Beijing, (2002).

[7] Zh W Wu, H Zh Lian. High Performance Concrete, first ed., China Railway Press, Beijing, (1999).

[8] Y Yao, L Wang, P Tian. High Performance Concrete, first ed., Chemical Industry Press, Beijing, (2006).

[9] CECS 203: 2006, Technical specifications for self compacting concrete application, S.

[10] SH T Wang, G J Ma, ZH Y Zhu, et al, Mix design of high performance pavement concrete, J. Journal of Highway and Transportation Research and Development, 4 (2007) 25-28.

[11] Y M Zhang, H G Qin, W Sun, et al, Elementary research of recycled aggregate concrete mix design, J. China Concrete and Cement Products, 1 (2002) 7-9.

[12] GB/T 50081-2002, Standard for test method of mechanical properties on ordinary concrete, S.