Numerical analysis of effect of temperature history and restraint degree on cracking behavior of early-age concrete

  • Jianda Xin State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research;Department of Structures and Materials, China Institute of Water Resources and Hydropower Research
  • Guoxin Zhang State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research;Department of Structures and Materials, China Institute of Water Resources and Hydropower Research
  • Yi Liu State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research;Department of Structures and Materials, China Institute of Water Resources and Hydropower Research
  • Zhenhong Wang State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research;Department of Structures and Materials, China Institute of Water Resources and Hydropower Research
  • Zhe Wu State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research;Department of Structures and Materials, China Institute of Water Resources and Hydropower Research

Abstract

This paper presents a numerical analysis of concrete restraint tests conducted on a temperature stress testing machine (TSTM). Two numerical methods, namely a 1-D method using Matlab software and 3-D method using Midas software, were adopted. Factors, such as cooling rate and restraint degree, were numerically analyzed and compared with experimental results. Results show that numerical analyses of concrete restrained stresses were comparable with those of TSTM tests. The cracking potential of concrete decreased with higher cooling rate at early age and this benefit became more considerable for concrete structures under higher restraint conditions. A simplified relationship between the restraint degree and the allowed temperature difference is developed. Furthermore, it is found that the anti-cracking capability of concrete under different restraint conditions can be overestimated up to 56% when ignoring creep effect on values of restraint degree.

References

ACI Committee 207. 1995. Effect of Restraint, Volume Change, and Reinforcement on Cracking of Mass Concrete (207.2R-95), Farmington Hills, Michigan.

Altoubat, S., Badran, D., Junaid, M. T. & Leblouba, M. 2016. Restrained shrinkage behavior of self-compacting concrete containing ground-granulated blast-furnace slag. Construction and Building Materials, 129: 98-105.

Altoubat, S., Junaid, M. T., Leblouba, M. & Badran, D. 2017. Effectiveness of fly ash on the restrained shrinkage cracking resistance of self-compacting concrete. Cement and Concrete Composite,79: 9-20.

Amin, M. N., Kim, J. S., Lee, Y. & Kim, J. K. 2009. Simulation of the thermal stress in mass concrete using a thermal stress measuring device. Cement and Concrete Research, 39(3): 154-164.

Bažant, Z. P. & Osman, E. 1976. Double power law for basic creep of concrete. Materials and Structures, 9(1): 3-11.

Bažant, Z. P. 1972a. Numerical determination of long-range stress history from strain history in concrete. Materials and Structures, 5(3):135-141.

Bažant, Z. P. 1972b. Prediction of concrete creep effects using age-adjusted effective modulus method. ACI Journal, 69: 212-217.

Breitenbücher, R. 1990. Investigation of thermal cracking with the cracking-frame. Materials and Structures, 23(3): 172-177.

China Standards. GB/T50081. 2002. Test standards and methods for mechanical properties of normal concrete. Beijing: People’s Republic of China.

Dilger, W. & Neville, A. M. 1971. Method of creep analysis of structural members. ACI Journal, 27: 349–372.

Emborg, M. 1989. Thermal stresses in concrete structures at early ages (Ph.D. thesis). Luleå University, Luleå, Sweden.

Fan, W. J., Wang, X. Y. & Park, K. B. 2015. Evaluation of the chemical and mechanical properties of hardening high-calcium fly ash blended concrete. Materials, 8(9): 5933-5952.

Ghali, A., Favre, R. & Elbadry, M. 2002. Concrete structures: stresses and deformations (3rd Edition). E&FN Spon, London.

Gilbert, R. I. & Ranzi, G. 2011. Time-Dependent Behaviour of Concrete Structures. Spon Press, London.

Hossain, A. B. & Weiss, J. 2004. Assessing residual stress development and stress relaxation in restrained concrete ring specimens. Cement and Concrete Composite, 26(5): 531-540.

Khan, I., Castel, A. & Gilbert, R. I. 2017. Effects of fly ash on early-age properties and cracking of concrete. ACI Material Journal, 114(4): 673-681.

Kovler, K. & Bentur, A. 2009. Cracking sensitivity of normal-and high-strength concretes. ACI Material Journal, 106(6): 537-542.

Kovler, K. 1994. Testing system for determining the mechanical behavior of early age concrete under restrained and free uniaxial shrinkage. Materials and Structures, 27(6): 324-330.

Lee, H. K., Lee, K. M. & Kim, B. G. 2003. Autogenous shrinkage of high-performance concrete containing fly ash. Magazine of Concrete Research, 55(6): 507-515.

Li, K., Ju, Y., Han, J. & Zhou, C. 2009. Early-age stress analysis of a concrete diaphragm wall through tensile creep modeling. Materials and Structures, 42(7): 923-935.

Lin, Z. H. 2006. Quantitative evaluation of the effectiveness of expansive concrete as a countermeasure for thermal cracking and the development of its practical application (Ph.D. thesis). University of Tokyo, Tokyo, Japan.

Neville, A. M., Dilger, W. H. & Brooks, J. J. 1983. Creep of plain and structural concrete. Construction Press, New York.

Ranaivomanana, N., Multon, S. & Turatsinze, A. 2013. Tensile, compressive and flexural basic creep of concrete at different stress levels. Cement and Concrete Research, 52(10): 1-10.

Rossi, P., Tailhan, J. L., Le Maou, F., Gaillet, L. & Martin, E. 2012. Basic creep behavior of concretes investigation of the physical mechanisms by using acoustic emission. Cement and Concrete Research, 42(1): 61-73.

See, H. T., Attiogbe, E. K. & Miltenberger, M. A. 2003. Shrinkage cracking characteristics of concrete using ring specimens. ACI Material Journal, 100(3): 239-245.

Springenschmid, R., Breitenbucher, R. & Mangold, M. 1994. Development of the cracking frame and the temperature-stress testing machine, In Thermal Cracking in Concrete at Early Ages, E & FN Spon, London, pp.137-144.

Tazawa, E. 1999. Autogenous Shrinkage of Concrete. In Proceedings of the International Workshop organized by the JCI (Japan Concrete Institute), E & FN Spon, London.

Trost, H. 1967. Auswirkungen des Superpositionsprinzips auf Kriech- und Relaxations Probleme bei Beton und Spannbeton. Beton- und Stahlbetonbau, 62(10): 230-238, 261-269.

Wang, X. F., Fang, C., Kuang, W. Q., Li, D.W., Han, N. X. & Xing, F. 2017. Experimental study on early cracking sensitivity of lightweight aggregate concrete. Construction and Building Materials, 136: 173-183.

Wang, Z., Liu, Y., Zhang, G. & Hou, W. 2015. Schematic study on temperature control and crack prevention during spillway tunnel concreting period. Materials and Structures, 48(11): 3517-3525.

Zhang, T. & Qin, W. Z. 2006. Tensile creep due to restraining stresses in high-strength concrete at early ages Cement and Concrete Research, 36(3): 584-591.

Zhu, B. F. 2013. Thermal stresses and temperature control of mass concrete. Oxford: Butterworth-Heinemann.

Published
2020-05-23
Issue
Vol 8 No 2 (2020): Journal of Engineering Research
Section
Civil Engineering