Size Effect of Concrete Compressive Strength with Different Reinforcement Ratio

Abstract:

An experimental investigation is reported into the size effect for compressive strength from 36 concrete prism specimens under axial loading and with three different kinds of dimensions of 100×100×300mm, 150×150×300mm, 200×200×400mm. Such parameters as strength grade of concrete and reinforcement ratio are taken into consideration. Three different strength grades of concrete and two different reinforcement ratio are included in those specimens, all tests are undertaken according to ASTM C 39/C 39M-2005. Based on the results obtained, a new size effect law for different kinds of concrete in prismatical compressive strength is suggested and those relative parameters on the size effect are discussed.

• Periodical: Key Engineering Materials (Volumes 400-402)
• Pages: 837-841
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.400-402.837
• Online since: October 2008
• Authors: Jie Su, Zhi Fang
• Keywords: Concrete, Prismatical Compressive Strength, Reinforcement Ratio, Size Effect

References

[1] Z.P. Bazant: Size effect, International Journal of Solids and Structures 37 (2000) : 69-80.

[2] W. Weibull: The phenomenon of rupture in solids. In: Proc., Royal Swedish Institute of Engineering Rearch, vol. 4 (1939), p.153, 1-55.

[3] W. Weibull: A statistical representation of fatigue failures in solids. Proc., Royal Swedish Institute of Engineering Rearch (1949), pp.1-27.

[4] W. Weibull: A statistical distribution function of wide applicability.: Jounal of Applied Mechanics ASME 18. (1951).

[5] Z.P. Bazant: Size effect aspects of measurement of fracture characteristics of quasibrittle material, Advanced Cement Based Materials, Volume 4, Issues 3-4 (1996), pp.128-137.

DOI: 10.1016/s1065-7355(96)00037-5

[6] Z.P. Bazant: Scaling of quasibrittle fracture: asymptotic analysis. International Journal of Fracture; vol. 83(1997), pp.19-40.

[7] Z.P. Bazant: Concrete fracture models: testing and practice, Engineering Fracture Mechanics, Volume 69, Issue 2, (2002), pp.165-205.

DOI: 10.1016/s0013-7944(01)00084-4

[8] Z.P. Bazant, Emilie Becq-Giraudon: Statistical prediction of fracture parameters of concrete and implications for choice of testing standard, Cement and Concrete Research, Volume 32, Issue 4, (2002), pp.529-556.

DOI: 10.1016/s0008-8846(01)00723-2

[9] Z.P. Bazant, Arash Yavari: Is the cause of size effect on structural strength fractal or energetic-statistical?, Engineering Fracture Mechanics, Volume 72, Issue 1 (2005), 1-31.

DOI: 10.1016/j.engfracmech.2004.03.004

[10] Giovanni Di Luzio, Z.P. Bazant: Spectral analysis of localization in nonlocal and over-nonlocal materials with softening plasticity or damage, International Journal of Solids and Structures, Volume 42, Issue 23 (2005), pp.6071-6100.

DOI: 10.1016/j.ijsolstr.2005.03.038

[11] A. Carpinteri, Chiaia B, Ferro G.: Multifractal scaling law for the nominal strength variation of concrete structures. In: Mihashi M, Okamura H., Z.P. Bazant, editors. Size e. ect in concrete structures. London, New York: E&FN Spon (1994).

[12] A. Carpinteri, Marco Paggi: Size-scale effects on the friction coefficient, International Journal of Solids and Structures, Volume 42, Issues 9-10 (2005), pp.2901-2910.

DOI: 10.1016/j.ijsolstr.2004.10.001

[13] A. Carpinteri, P. Cornetti: Size effect upon grained materials tensile strength: The increase of the statistical dispersion at the smaller scales, Theoretical and Applied Fracture Mechanics, Volume 44, Issue 2 (2005), pp.192-199.

DOI: 10.1016/j.tafmec.2005.06.008

[14] A. Carpinteri, Nicola Pugno: Cracks and re-entrant corners in functionally graded materials, Engineering Fracture Mechanics, Volume 73, Issue 10 (2006), pp.1279-1291.

DOI: 10.1016/j.engfracmech.2006.01.008

[15] A. Carpinteri, Simone Puzzi: A fractal approach to indentation size effect, Engineering Fracture Mechanics, Volume 73, Issue 15 (2006), pp.2110-2122.

DOI: 10.1016/j.engfracmech.2006.04.020

[16] Griffith, A.A., 1921, The phenomena of rupture and in solids. Phi. Trans. 221A, 179-180.

[17] J. R. del Viso, J. R. Carmona: Shape and size effect on the compressive strength of high-strength concrete, Cement and Concrete Rearch, vol. 38 (2008), pp.386-395.

DOI: 10.1016/j.cemconres.2007.09.020

[18] T. Krauthammer, M. M. Elfahal: Size effct for high-strength concrete cylinders subjected to axial impact, International Journal of Impact Engineering, vol. 28(2003), pp.1001-1016.

DOI: 10.1016/s0734-743x(02)00166-5

[19] Li Jiakang: Size effect for high-strength concrete cubes subjected to axial loads, Journal of building materials, vol 17 No. 1 (2004), pp.81-84(In Chinese).

[20] Qian Jueshi, Yang Zaifu: Experimental study in the size effect of high-strength concrete. Journal of HUST, vol 21 No. 1, (2004), pp.1-4. (In Chinese).