Experimental Study on Mechanical Properties of Hybrid Fiber Reinforced Full Lightweight Aggregate Concrete

Abstract:

Tests were carried out to study mechanical properties of hybrid fiber reinforced full lightweight aggregate concrete (HFRFLAC), the hybrid fiber was composed by steel fiber and polypropylene fiber, the expanded-shale and lightweight sand were used as coarse and fine aggregates. The apparent density and strengths in cubic compressive, splitting tensile and flexural tensile states of HFRFLAC were obtained. The results show that the average dry apparent density increases with the increasing cement content, which is much more affected by fraction of steel fiber by volume than mass content of polypropylene fiber; the tensile strengths increase somewhat with the increasing mass content of polypropylene fiber; all of the strengths increase with the increasing fraction of steel fiber by volume, and obvious are the enhancement of tensile strengths; there are somewhat relevance between the effects of polypropylene fiber and steel fiber on mechanical properties of HFRFLAC.

• Periodical: Advanced Materials Research (Volumes 197-198)
• Pages: 911-914
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.197-198.911
• Online since: February 2011
• Authors: Li Yun Pan, Hao Yuan, Shun Bo Zhao
• Keywords: Apparent Density, Hybrid Fiber Reinforced Full Lightweight Aggregate Concrete (HFRFLAC), Polypropylene (PP) Fiber, Steel Fiber (SF), Strength

References

[1] JGJ 51-2002. Technical Specification for Lightweight Aggregate Concrete. (China Building Industry Press, 2002).

[2] C. Li, X. Qian and S. Zhao: Concrete, No. 5, (2010), pp.79-82.

[3] S. Zhao, C. Li and X. Qian: submitted to GeoHunan International Conference II, June 6-8, 2011, Zhangjiajie, China.

[4] CECS13: 2009: Standard Test Method for Fiber Reinforced Concrete (China Plan Press, 2010).

[5] X. Qian, S. Zhao, J. Chen and R. He: Journal of Building Materials, No. 5, (2006), pp.527-532.