Browse > Article
http://dx.doi.org/10.4334/JKCI.2002.14.5.698

Strength Properties of High-Strength Concrete Exposed at High Temperature  

윤현도 (충남대학교)
김규용 (일본 건축연구소 재료연구그룹)
한병찬 (충남대학교)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.5, 2002 , pp. 698-707 More about this Journal
Abstract
A review is presented of experimental studies on the strength performance of concrete exposed at short-term and rapid heating as in a fire and after cooling. Emphasis is placed on concretes with high original compressive strengths, that is, high-strength concrete(HSC). The compressive strength-temperature relationships from the reviewed test programs are distinguished by the test methods used in obtaining the data(unstressed, unstressed residual strength, and stressed tests) and by the aggregate types(normal or lightweight), The compressive strength properties of HSC vary differently with temperature than those of NSC. HSC have higher rates of strength loss than lower strength concrete in the temperature range of between 20$^{\circ}C$ to about 400$^{\circ}C$. These difference become less significant at temperatures above 400$^{\circ}C$ compressive strengths of HSC at 800$^{\circ}C$ decrease to about 30 ％ of the original room temperature strength. A comparison of lest results with current code provisions on the effects of elevated temperatures on concrete compressive strength and elastic modulus shows that the CEN Eurocodes and the CEB provisions are unconservative.
Keywords
fire performance; high-strength concrete; high temperature; thermal behavior; compressive strength;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Sullivan, P. J. E. and Sharshar, R., "Performance of Concrete at Elevated Temperatures(as measured by the reduction in compressive strength)," Fire Technology, Vol. 28. No. 3, 1992, pp.351-359.   DOI
2 Concrete Reinforcing Steel Institute, " Reinforcing Concrete Fire Resistance," CRSI, 1980.
3 Castillo, C. and Durrani, A J., "Effect of Transient High Temperature on High- trength Concrete," ACI Material Journal, Vol. 87, No. 1, 1990, pp.47-53.
4 ACI, "Guide for Determining the Fire Endurance of Concrete Element," ACI 216R-89. 1989.
5 Morita, T., Saito, H., and KU,agai, H., "Residual Mechanical Properties of High Strength Concrete Members Exposed to High Temperature - Part 1. Test on Material Properties," Summaries of Technical Papers of Annual Meeting, AlJ, Niigata.1992.
6 한국콘크리트학회, "화재와 콘크리트," 한국콘크리트학회지, 2002, pp.9-45.
7 Noumowe, A. N., Clastres, P., Debicki, G. and Costaz, J. L., "Thermal Stresses and Water Vapor Pressure of High Performance Concrete at High Temperature," Proceedings, 4th International Symposium on Utilization of High-Strength/High- Performance Concrete, Paris, France, 1996.
8 Felicetti, R., Gambarova, P. G., Rosati, G. P., Corsi, F., Giannuzzi, G., "Residual Mechanical Properties of High-Strength Concretes Subjected to High-Temperature Cycles," Proceedings, 4th International Symposium on Utilization of High- Strength High-Performance Concrete, Paris, France, 1996, pp.579 -588.
9 Comite Europeen de Normalisation, "prENV1992-1-2: Eurocode 2: Design of Concrete Structures. Part 1-2 : Structural Fire Design," CEN/TC 250/SC 2, 1993.
10 Diederichs, U., Jumppanen, U. M., Penttala, V., "Material Properties of High Strength Concrete at Elevated Temperatures," IABSE 13th Congress, Helsinki, 1988.
11 Furumura, F., Abe, T., Shinohara, Y., "Mechanical Properties of High Strength Concrete at High Temperatures," Proceedings of the Fourth Weimar Workshop on High Performance Concrete: Material Properties and Design, held at Hochschule fur Architektur und Bauwesen(HAB), Weimar, Germany, October 4-5, 1995, pp.237 -254.
12 Hertz K. "Danish Investigations on silica Fume Concretes at Elevated Temperatures," Proceedings, ACI 1991 Spring Convention, Boston, MA, March pp.17 -21.
13 Hammer, T. A, "High Strength Concrete Phase 3, Compressive Strength and Elastic Modulus at Elevated Temperatures," SP6 Fire Resistance, Report 6.1, SINTEF Structure and Concrete, STF70 A95023, 1995.
14 Comites Euro-International Du Beton, "Fire Design of Concrete Structures - in accordance with CEB/FIP Model Code 90 (Final Draft)," CEB Bulletin D' Information, No. 208, July 1991, Lausanne, Switzerland.
15 Phan, L. T., "Fire Performance of High-Strength Concrete: A Report of the State-of-the-Art," Building and Fire Research Laboratory, NISTIR 5934. 1996.
16 Menzel,C.A., "Tests of the Fire Resistance and Thermal Properties of Solid Concrete Slabs and Their Significance," Proceedings, ASTM Vol.43, 1943, pp. 1099-1153.