Influence of Adding Lime Dust on Compressive Strength and Frost Resistance of Fly Ash Recycled Concrete

Abstract:

The influence of part of fly ash replaced with lime dust on fly ash recycle concrete compressive strength and frost resistance is investigated by compression tests and rapid frost-thawing test. The experimental results show that part of fly ash replaced with lime dust will reduce the early compressive strength of the fly ash recycled concrete; the right amount of lime dust replacing fly ash can raise the latter compressive strength of fly ash recycled concrete, the best replacement proportion is 10%. The anti-frozen capacity of fly ash recycled concrete will reduce by replacing part of fly ash with lime dust, and the amplitude reduction of anti-frozen capacity of fly ash recycled concrete in seawater is greater than the amplitude reduction in sulfate solution and in freshwater.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 1813-1816
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.1813
• Online since: March 2013
• Authors: Xiang Hao Wu, Yong Xin Yao, Xing Wei Yin, Pan Yuan
• Keywords: Compressive Strength, Fly Ash Recycled Concrete, Frost Resistance, Lime Dust

References

[1] Li Jiabin, Xiao Jianzhuang, Huang Jian, Influence of recycled coarse aggregate replacement percentages on compressive strength of concrete[J]，Journal of building materials, 2006. 9(3): 297-301. (in Chinese).

[2] Xiao Jianzhuang, Fan Yuhui, Lin Zhuangbin, Experiment on compressive strength of recycled fine aggregate concrete[J], Journal of architecture and civil engineerin, 2011. 28(4): 26-29. (in Chinese).

[3] Qin Yinhui, Deng Shouchang, Zhang Xuebin, Anti-frozen performance com- parison of recycled concrete and normal concrete[J], Concrete, 2007. 213(7): 34-36. (in Chinese).

[4] Ying Jingwei, Xiao Jianzhuang, Influence of recycled aggregate replacement ratio on durability of recycled aggregate concrete[J], Journal of architecture and civil engineering, 2011. 29(1): 56-62. (in Chinese).

[5] Wang Lijiu, Wang Zhenshuang, Cui Zhanglong, Study on frost resistance du- rability of recycled aggregate concrete[J], Low temperature architecture technology, 2009. 31(7): 1-2. (in Chinese).

[6] Wu Xianghao, Yue pengjun, Experimental study on chloride ion penetration into recycled aggregate concrete[J], Journal of building materials, 2011. 14(3): 381-384. (in Chinese).

DOI: 10.1109/rsete.2011.5964282

[7] Feng Jia, Li Qiuyia, Song Jing, Zhang Jian, Experimental study on the frost resistance of recycled coarse aggregate concrete[J]，Journal of Qingdao technological university, 2011. 32(4): 44-48. (in Chinese).

[8] GB175-99, Portland cement and ordinary Portland cement, National standard of the People's Republic of China, 1999. (in Chinese).