Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-27T01:33:57.906Z Has data issue: false hasContentIssue false
  • English
  • Français

A Measure for the Fracture Toughness of Cement Based Materials

Published online by Cambridge University Press:  22 February 2011

Y. S. Jenq  and
S. P. Shah
Y. S. Jenq
Affiliation:
Department of Civil EngineeringNorthwestern UniversityEvanston, Illinois, 60201
S. P. Shah
Affiliation:
Department of Civil EngineeringNorthwestern UniversityEvanston, Illinois, 60201
Get access

Extract

It is frequently reported that the higher the strength of cement based materials, the more brittle is their behavior. It could he useful to quantitatively express the degree of brittleness. Many attempts [1–13] have been made to use linear elastic fracture mechanis (LEFM) to quantitatively express the degree of brittleness. For example, by testing notched beams one can calculate, using the formulas developed from LEFM, a quantity called fracture toughness and termed KIC from the measured maximum load and the initial notch-length. Unfortunalely, it has been observed that K thus calculated is dependent on the dimension of the beams. Many researchers have attempted to analyze this size dependency. Such approaches are usually quite cumbersome and are often based on expensive nonlinear finite element programs. In this paper a direct method is suggested to calculate two size-independent fracture toughness parameters from the experimental results. The method was developed based on tests on notched-beams of different mix proportions and different sizes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 42: Symposium L – Very High Strength Cement-Based Materials , 1984 , 89
Copyright
Copyright © Materials Research Society 1985

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Kaplan, M. F., Journal of the American Concrete Institute, Vol.58, No. 5, pp. 591–610, November 1961.Google Scholar
2. Lott, J. L., and Kesler, C. E., T. & A. M. Report, No. 648, University of Illinois at Urbana-Champaign, August 1964.Google Scholar
3. Moavenzadeh, F., and Kuquel, R., Journal of Material, JMLSA, Vol. 4, No. 3, September 1969, pp. 497–519.Google Scholar
4. Naus, D. J., and Lott, J. L., ACI Journal, June 1969, pp. 481–489.Google Scholar
5. Shah, S. P., McGarry, F. J., Journal of Engineering Division (ASCE), Dec. 1971, pp. 1663–1675.Google Scholar
6. Walsh, P. F., Indian Concrete Journal, Vol.46, No. 11, 469, 470, 476, Nov. 1972.Google Scholar
7. Brown, J. H., Magazine of Concrete Research, Vol.24, No. 81, 1972, pp. 185–196.10.1680/macr.1972.24.81.185Google Scholar
8. Higgins, D. D., and Bailey, J. E., Journal of Material Science, Vol.11, 1976, pp. 1995–2003.10.1007/PL00020325Google Scholar
9. Mindess., S., and Nadeau, J. S., Cement and Concret Research, Vol.6, 1976, pp. 529–534.10.1016/0008-8846(76)90081-8Google Scholar
10. Gjov, O. E., Sørensen, S. I., and Arnesen, A., Cement and Concrete Research, Vol.7, 1977, pp. 333–344.10.1016/0008-8846(77)90096-5Google Scholar
11. Swartz, S. E., Hu, K. K., and Jones, G. L., Journal of the Eng. Mech. ASCE, Vol.104, No. EM4, August 1978, pp. 789–800.Google Scholar
12. Swartz, S. E., Hu, K. K., and Huang, C. M. J., Experimentl Mechanics, Nov. 1982, pp. 412–417.Google Scholar
13. Strange, P. C., and Bryant, A. H., Technical Notes, Journal of Eng. Mech. Div., ASCE, Vol.105, No. EM2, April 1979, pp. 337–342.Google Scholar
14. Wecharatana, M., and Shah, S. P., Cement and Concrete Research, Vol.10, 1980, pp. 833–844.10.1016/0008-8846(80)90011-3Google Scholar
15. Wecharatana, M., and Shah, S. P., Journal of Structural Div., ASCE, June 1982, pp. 1100–1113.Google Scholar
16. Wecharatana, M., and Shah, S. P., Journal of EMD, ASCE, Vol.109, No. 5, October 1983, pp. 1231–1246.Google Scholar
17. Wecharatana, M., and Shah, S. P., Cement and Concrete Research, Vol.13, 1983, pp. 819–829.10.1016/0008-8846(83)90083-2Google Scholar
18. Ballarini, R., Shah, S. P., and Keer, L. M., Engineering Fracture Mechanis, (To appear).Google Scholar
19. Go, C. G., and Swartz, S. E., Report 150, College of Engineering, Kansas State University, July 1983.Google Scholar
20. Hillerborg, A., Modeer, M., and Petersson, P. E., Cement and Concrete Research, Vol.6, 1976, pp. 773–782.10.1016/0008-8846(76)90007-7Google Scholar
21. Hillemier, B., and Hilsdorf, H. M., Cement and Concrete Research, Vol.7, 1971, pp. 523–536.10.1016/0008-8846(77)90114-4CrossRefGoogle Scholar
22. Gopalaratnam, V., S., and Shah, S. P., Accepted for publication, ACI Journal, (MS5652).Google Scholar
23. Tada, H., Paris, P. C., and Irwin, G. R., The Stress Analysis of Cracks Handbook, Del Research Corporation, Hellertown, Pennsylvania.Google Scholar
24. Jenq, Y. S., and Shah, S. P., accepted for publication, Engineering Fracture Mechanics.Google Scholar
25. Jenq, Y. S., and Shah, S. P., Proceedings of NATO Workshop on “The Application of Fracture Mechanics to Cementitious Composites,” edited by S. P. Shah, pp. 213–253, 1984.Google Scholar
26. Jenq, Y. S., and Shah, S. P., Submitted for publication, American Society of Civil Engineers.Google Scholar
27. Carpinteri, A., Materiaux et Constructions, Vol.14, No. 81, 1981.10.1007/BF02473919Google Scholar
28. Wright, P. J. A., Magazine of Concrete Research, Vol.4., No. 11, 1952, pp. 67–76.10.1680/macr.1952.4.11.67Google Scholar