Influence of Mineral Admixtures on the Carbonation Resistance and Chloride Permeability of Steam-Cured HPC

Abstract:

This paper studies the influence of different mineral admixtures（fly ash and ground granulated blast furnace slag）on the carbonation resistance and chloride permeability of steam-cured HPC. The test results show that under the condition of steam-cured and standard-cured, incorporating 20-30% of the ground granulated blast furnace slag or 15-20% of fly ash decreased the alkalinity and the carbonation resistance of the concrete; with the increase of the proportion of the mineral admixture in concrete, carbonation resistance of HPC was decreased; incorporating 20-30% of the ground granulated blast furnace slag or 15-20% of fly ash improved the chloride permeability of steam-cured concrete, and the influence of ground granulated blast furnace slag is better than that of the fly ash.

• Periodical: Key Engineering Materials (Volume 477)
• Pages: 366-374
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.477.366
• Online since: April 2011
• Authors: Jian Hua Wu, Yun Lan Liu
• Keywords: Carbonation Resistance, Chloride Permeability, Fly Ash (FA), Ground Granulated Blast Furnace Slag, High-Performance Concrete (HPC), Steam Cured

References

[1] N.M. Ihekwaha, B.B. Hope , C.M. Hansson. carbonation and electrochemical chloride extraction from concrete[J]Cement and Concrete Research, 1996, 26(7) : 1095-1107.

DOI: 10.1016/0008-8846(96)00076-2

[2] M.I. Khana, C.J. Lynsdale. Strength, permeability, and carbonation of high-performance concrete[J]. Cement and Concrete Research 2002, 32: 123-131.

DOI: 10.1016/s0008-8846(01)00641-x

[3] Shi Hui-sheng, Xu Bi-wan , Zhou Xiao-chen. Influence of mineral admixtures on compressive strength, gas permeabilityand carbonation of high performance concrete[J]. Construction and Building Materials, 2009, 23: 1980-(1985).

DOI: 10.1016/j.conbuildmat.2008.08.021

[4] Standard Test Method for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penertration. ASTM C 1202～94.

[5] Aiqin Wang, Chenzhi Zhang, Wei Sun. Fly ash effect Ⅰ. The morphological effect of fly ash[J]. Cement and Concrete Research, 2003, 33: 2023-(2029).

DOI: 10.1016/s0008-8846(03)00217-5

[6] Aiqin Wang , Chengzhi Zhang , Wei Sun. Fly ash effects Ⅱ. The active effect of fly ash [J ] . Cement and Concrete Research , 2004 , 34 : 2057 - (2060).

DOI: 10.1016/j.cemconres.2003.03.001

[7] Aiqin Wang , Chengzhi Zhang , , Wei Sun. Fly ash effects III. The microaggregate effect of fly ash [ J ] . Cement and Concrete Research , 2004 , 34 : 2061 - (2066).

DOI: 10.1016/j.cemconres.2003.03.002

[8] Yang Huaquan , Dong Weijia , Wan Zhonghua. Test Study on Micro-properties of Concrete Mixed with Slag and Fly-ash[J]. Journal of Yangtze River Scientific Research Institute, 2005, 22(1): 46-49.

[9] Li Mingshan, Ji Xing, Zhang Yongnian. The attempt of the application Slag in cement products[J]. China Concerete and Cement Products, 2003, (5): 30-31.

[10] Hou Xinkai, Xu Delong , Han Tao, Cao Honghong , Li Hui. A study on the activ ity and fluidity of GGBS[J]. Xi'an Univ. of Arch. & Tech. (Natural Science Edition), 2004, 36(3): 263-269. ( in Chinese).

[11] Xu Zhifang，Lu Difen. Effects of FG on mechanical properties of cement-fly ash systems with steam curing[J]. Concrete, 2009, 232(2): 11-13.

[12] Xiang Min, Yang Congjuan. Research on Steam curing temperature of concrete box girder control[J]Railway Engineering. 2009 , (2): 15-17.

[13] He Zhihai, Liu Baoju , Cheng Zhiqing , Liang Hui . Hydration characteristics of steam curing cement-fly ash composite binder[J]. Concrete. 2005, 194(12): 67-70.

[14] He Zhihai，Liu Baoju. Experimental Study of Anti-Chloride Ion Penetration Performance of Steam Curing Concrete[J]Fly Ash, 2007. 2, 12-15.