Evaluation of Relations among Basic Mechanical Properties of Fly-Ash Concrete with Machine-Made Sand

Abstract:

Although the machine-made sand was widely used for concrete in recent years in China, it was short of studies on the relations among the basic mechanical properties of fly-ash concrete with machine-made sand (MSFAC). However, these relations such as the compressive strength, the tensile strength and the elastic modulus with the cubic compressive strength (i.e. strength grade) are the basis of design for concrete structures. This paper summarizes the test data from the published references, and discusses the relations among these properties by statistical analyses compared with those of ordinary concrete. The results show that only the tensile strength of MSFAC can be safely forecasted by the same formula of ordinary concrete specified in current Chinese design code. When the strength grade is higher than C45, the axial compressive strength of MSFAC is largely forecasted by the formula of ordinary concrete. The elastic modulus of MSFAC is larger than that of ordinary concrete, which should be prospect by the formula in this paper. This work gives out some cautions for the proper use of the MSFAC in concrete structures.

• Periodical: Applied Mechanics and Materials (Volumes 438-439)
• Pages: 15-19
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.438-439.15
• Online since: October 2013
• Authors: Chun Jie Liu, Chun Yan Jia, Chang Yong Li
• Keywords: Compressive Strength, Elastic Modulus, Fly-Ash Concrete, Machine-Made Sand, Relation, Tensile Strength

References

[1] GB/T14684-2001: Sand for Building (China Building Industry Press, Beijing, 2001).

[2] JGJ52-2006: Standard for Technical Requirements and Test Method of Sand and Crushed Stone (or Gravel) for Ordinary Concrete (China Building Industry Press, Beijing, 2006).

[3] X. Zhang, X. Ding, S. Zhao and Z. Ge: Applied Mechanics and Materials Vols. 71-78 (2011), pp.4361-4364.

[4] C. Li, Q. Sun and F. Li: Advanced Materials Research Vols. 295-297 (2011), pp.436-439.

[5] GBJ 146-90: Standard for Applied Technology of Fly Ash Concrete (China Building Industry Press, Beijing, 1990).

[6] M. Xia, C. Li, S. Zhao, C. Liu and Y. Zhao: Fly Ash Comprehensive Ultilizaton No. 4 (2006), pp.32-34.

[7] F. Li, Q. Zhu and Y. Xu: Water Resources and Hydropower Engineering No. 7 (2010), pp.76-78.

[8] F. Li, Q. Zhu and K. Gao: Water Power No. 5 (2010), pp.79-81.

[9] F. Li, Q. Zhu and Y. Xu: Concrete No. 2 (2010), pp.84-86.

[10] GB50010-2010: Design Code for Concrete Structures (China Building Industry Press, Beijing, 2010).

[11] S. Zhao: Design Principles of Concrete Structures (Tongji University Press, Shanghai, 2004).

[12] M. Xia: Thesis for Master Degree of North China University of Water Resources and Electric Power, Zhengzhou, China, (2005).

[13] S. Zhao, M. Xia and C. Liu: Journal of Railway Science and Engineering No. 3 (2006), pp.15-20.

[14] Z. Li: Thesis for Master Degree of North China University of Water Resources and Electric Power, Zhengzhou, China, (2004).

[15] L. Peng: Building Technology under Low Temperature No. 7 (2009), pp.11-13.

[16] Z. Chen: Water Power No. 7 (2001), pp.32-35.

[17] C. Zhao, B. Dong and J. Yu: Building Technology under Low Temperature No. 4 (2009), pp.15-16.

[18] Q. Du, Q. Xu, Y. Liu and Y. Chen: Journal of Kunming University of Science and Technology No. 2 (2001), pp.36-38.

[19] J. Tian: Thesis for Master Degree of Wuhan University of Technology, Wuhan, China, (2006).

[20] F. Qi, M. Hu, P. Xu and R. Gong: Highway of China and Foreign Countries No. 6 (2010), pp.273-277.