Research on Barite Concrete Mixed with Fly Ash

Abstract:

Barite concrete with density grade of 3 and strength grade of C30 was prepared by mixing with different fineness of fly ash. The workability, mechanical properties and long-term high temperature performance of the prepared barite concrete were researched. Results show that the workability of barite concrete is improved by mixing with fly ash, and no segregation of mixture has been observed. The apparent density and 3d, 28d compressive strength of barite concrete are decreased obviously after mixing with fly ash. But with the increasing of the fineness of fly ash, the apparent density and 3d, 28d compressive strength of barite concrete have a slight increase. High temperature residual compressive strength is decreased with the increasing of temperature. The cycle times of heat treatment at 400°C only has a little effect on residual compressive strength of barite concrete.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 2107-2111
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.2107
• Online since: January 2013
• Authors: Qiu Lin Zou, Jun Li, Zhen Yu Lai
• Keywords: Barite Concrete, Fly Ash (FA), Long-Term High Temperature Performance

References

[1] Hongjun Zhu, Haili Cheng and Demin Jiang: Special concrete and new concrete (In Chinese) (Chemical Industry Press, Beijing 2004).

[2] Chuan Wang, Qiang Wu: Radiation Protection(In Chinese), Vol. 28(2008), p.125~128.

[3] V.I. Pavlenko, R.N. Yastrebinskii and D.V. Voronov: Journal of Engineering Physics and Thermophysics, Vol. 81(2008), p.686~691.

[4] Qingjun Ding, Lihua Zhang and Shuguang Hu: Journal of Wuhan University of Technology(In Chinese), Vol. 24 (2002), p.16~19.

[5] Guogang Li: Research on Radiation Shielding Concrete, Wuhan university of technology(In Chinese) (2010).

[6] Y. Yarar: Journal of Nuclear Materials, (1996), p.1511~1515.

[7] Jiaomei Mo: Shanxi Architecture(In Chinese), Vol. 32(2006), p.145~146.

[8] Xiaozhu Xu: Shanxi Architecture(In Chinese), Vol. 34(2008), p.147~148.

[9] K. Sakr, E. El. Hakim: Cement and Concrete Research, 35(2005), p.590~596.

[10] Hongliang Ai, Shijun Li and Ling Zhang: Concrete(In Chinese), Vol. 11(2009), p.114~117.

[11] Xiaojun Liu, Zhengbin Gong: Jiangsu Construction(In Chinese), Vol. 1(2005), p.49~50.

[12] Ping Li, Mintao Zhu: Building Construction(In Chinese), Vol. 28(2006).

[13] Mingyong Tan: Guangdong Building Materials(In Chinese), Vol. 10(2008), p.52~53.