The Influence of Mineral Admixtures on the Wear-Resisting Property of Recycled Aggregate Concrete

Abstract:

It was tested the strength and wear value of recycled aggregate concrete mixing fly ash, slag, silica fume and double-mixture or three-mixture in deferent age. The results show that the wear value of recycled aggregate concrete mixing 30% fly ash is more than reference concrete at 3days, but can improve final wear-resisting property significantly. The wear value of recycled aggregate concrete mixing 30% double-mixture of fly ash and silica fume is much lower than reference concrete at 3days, and improve early wear-resisting property significantly. The flexural strength of the concrete is 4.26MPa at 3days, which can satisfy the traffic requirement. The wear value of recycled aggregate concrete mixing 30% three-mixture of fly ash, slag and silica fume is lower than reference concrete at 3days, but the declining rate is not significant. It investigates mechanics of double-mixture technique which improves wear-resisting property at the same time.

• Periodical: Advanced Materials Research (Volumes 639-640)
• Pages: 417-422
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.639-640.417
• Online since: January 2013
• Authors: Wei Dong Chen, Jian Yin, Wei Min Song, Yi Chi
• Keywords: Concrete, Mechanic, Recycled Aggregate (RA), Road Service Performance, Wear-Resisting Property

References

[1] J．Yin ,X.Zhong ,J.Li,S.Q. Zhou and Y.J.Li. Experimental research on the mix design and the modified of recycled aggregate concrete. International Symposium on Innovation & Sustainability of Structures in Civil Engineering-Including Seismic Engineering, Nanjing, China, November 20-22, 2005, 958-967

[2] Yijin Li, Shiqiong Zhou, Jian Yin, Jun Li. Study on the workability and mechanical properties of recycled aggregate concrete containing ultra-fine fly ash [J], Key Engineering Materials, 2005, 314-320.

DOI: 10.4028/www.scientific.net/kem.302-303.314

[3] Li Jun; Yin Jian; Zhou Shiqiong; Li Yijin. Experimental research on the mix design and the modified of recycled aggregate concrete [J]，Journal of Railway Science and Engineering, 2005, 2（6）: 66-71.

[4] OSBORNE GJ. Durability of Portland blast-furnace slag cement concrete [J]. Cem Concr Compos, 1999 , 21 (1) : 11-21.

DOI: 10.1016/s0958-9465(98)00032-8

[5] JAN B. Benefit s of slag and fly ash [J]. Constr Build Mater, 1996 , 10 (5) :309-314.

[6] Shi Caijun, Qian Jueshi. High performance cementing materials f rom indust rial slag —a review [J] . Resour Conserv Recycling , 2000 , 29 (3) : 195-207.

[7] G. Prokopskia, J. Halbiniak. Interfacial transition zone in cementitious materials[J]. Cement and Concrete Research, 2000, 30 (6) 579-583.

DOI: 10.1016/s0008-8846(00)00210-6

[8] Zhengkeren, Sun Wei, Jiao Yangtao, Guo Liping. Method to determine reaction degrees of constituents in hydrating ternary blends composed of BFS, FA and Portland cement [J]. Journal of Southeast University, 2004,34(3):361-365.(in Chinese).

[9] Zhao Qingxing Sun Wei, Zheng Keren, Jiang Guoqing. Comparison for elastic modulus of cement, ground granulated blast-furnace slag and fly ash particles [J]. Journal of the Chinese Ceramic Society, 2005. Vol.33 (7) : 837-841.(in Chinese).