Experimental Research on the Influence of Pebble Aggregate Gradation on Concrete Strength

Abstract:

By changing the grading of pebble and water cement ratio, the influence of pebble grading on the compressive strength and flexural strength of concrete is studied at the same pebble content. Test results show that the compression strength and bending strength of concrete decrease with the increasing of the maximal size of coarse aggregate, while the maximal size (D_max) of pebble aggregate achieves 10mm, 20mm, 40mm and 60mm. And concrete strength decreases significantly when D_max is 60mm. Meanwhile, the influence of aggregate gradation is obviously with the increase of age time.

• Periodical: Applied Mechanics and Materials (Volumes 438-439)
• Pages: 179-182
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.438-439.179
• Online since: October 2013
• Authors: Xiu Hai Yin, Ling Lu
• Keywords: Age, Bending Strength, Compressive Strength, Concrete, Maximum Aggregate Size

References

[1] P. K. Mehta, Concrete Structure, Properties and Materials, Tongji University Press, Shanghai, (1991).

[2] A. M. Neville, Concrete Property, China Building Industry Press, Beijing, (1983).

[3] Q. Du, Study performance for binding property and concrete at interface, Journal of Yunnan University of Technology, 4 (1996) 26-28.

[4] DL/T5330-2005, Code for Mix Design of Hydraulic Concrete, China Electric Power Press, Beijing, (2005).

[5] SL 352-2006, Code for Experiment of Hydraulic Concrete, China Water Power Press, Beijing, (2006).