Abstract
So far deterioration of cement-based materials has been studied in most cases under single actions. In reality, however, materials are exposed to mechanical and environmental load combinations. Actions of combined loads on building materials can be subdivided into simultaneous actions and successive actions. Chloride penetration into SHCC under sustained load is an example for simultaneous actions and carbonation after frost damage is an example for successive actions. On ordinary concrete aggravating synergetic effects of combined loads could be observed. Chloride penetration for instance is accelerated if the material is simultaneously under tensile stress. The influence of combined loads on durability of cement-based materials is of particular significance if the service life of a structural element is to be predicted. Service life is overestimated in general, if design is based on a single selected environmental load as for instance carbonation or chloride penetration. So far few results of investigations into the behaviour of SHCC under combined loads are available. It is suggested to set up a coordinated research program in order to identify most serious combined loads as soon as possible.
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References
Alvaredo, A.M. and Wittmann, F.H. (1995). Shrinkage and cracking of normal and high performance concrete, in High Performance Concrete: Material Properties and Design, F.H.Wittmann and P. Schwesinger (Eds.), Aedificatio Publishers, Freiburg, pp. 91–110.
Lepech, M.D. and Li, V.C. (2005). Water permeability of cracked cementitious composites, in Proceedings of ICF11, Turin, Italy, March 2005, pp. 20–25.
Lepech, M.D. and Li, V.C. (2006). Long term durability performance of engineered cementitious composites, Int. J. Restoration of Buildings and Monuments, 12, pp. 119–132.
Nemecek, J., Kabele, P., Kopecky, L., and Bittnar, Z. (2006). Micro-mechanical properties of calcium leached engineered cementitious composites, in Proceedings Rilem International Workshop on High Performance Fiber Reinforced Cement-Based Composites (HPFRCC) in Structural Applications, Honolulu, Hawaii, May 22–27, 2005.
Sahmaran, M. and Li, V.C. (2009). Durability of mechanically loaded engineered cementitious composites under highly alkaline environments, Cement and Concrete Composites (accepted).
Setzer, M. (Ed.) (2000). Pore Solution in Hardened Cement Paste, Aedificatio Publishers, Freiburg.
Setzer, M. (2005). Mechanisms of frost action, in Proceedings International Workshop on Durability of Reinforced Concrete under Combined Mechanical and Climatic Loads, T. Zhao, F.H. Wittmann, and T. Ueda (Eds.), Aedificatio Publishers, Freiburg, pp. 263–274.
Takewaka, K., Yamaguchi, T., and Maeda, S. (2003). Simulation model for deterioration of concrete structures due to chloride attack, J. of Adv. Concr. Techn. 1(2), pp. 139–146.
Wittmann, F.H. (2002). Crack formation and fracture energy of normal and high strength concrete, Sadhana (India), 27, Part 4, pp. 413–423.
Wittmann, F.H. (2005). Shrinkage and shrinkage cracking of high performance fibre reinforced cement-based composites, in Proceedings of Creep, Shrinkage and Durability of Concrete and Concrete Structures, Concreep-7, G. Pijaudier-Cabot, B. Gérard, and P. Acker (Eds.), Hermes Science Publishing, pp. 574–578.
Wittmann, F.H. and Gerdes, A. (1996). Korrosion zementgebundener Werkstoffe unter dem Einfluss eines elektrischen Feldes, Int. J. Restoration of Buildings andMonuments, 2, pp. 455–480.
Wittmann, F.H., Sadouki, H., and Gerdes, A. (2000). Ionentransport und Beständigkeit zementgebundener Werkstoffe im Kontakt mit Wasser, Int. J. Restoration of Buildings and Monuments, 6, pp. 385–400.
Wittmann, F.H., Furtwängler, K., and Mao, X. (2006a). Optimisingmaterial properties by means of the instrumented ring test, in Proceedings Rilem International Workshop on High Performance Fiber Reinforced Cement-Based Composites (HPFRCC) in Structural Applications, Honolulu, Hawaii, May 22–27 2005.
Wittmann, F.H., Zhang, P., and Zhao, T. (2006b). Influence of combined environmental loads on durability of reinforced concrete structures, Int. J. Restoration of Buildings and Monuments, 12 (to appear).
Yang, Y.M., Lepech, M.D., and Li, V.C. (2005). Self-healing of engineered cementitious composites under cyclic wetting and drying, in Proceedings International Workshop on Durability of Reinforced Concrete under Combined Mechanical and Climatic Loads, T. Zhao, F.H. Wittmann, and T. Ueda (Eds.), Aedificatio Publishers, Freiburg, pp. 231–242.
Zhao, T., Wittmann, F., and Ueda, T. (Eds.) (2005a). Durability of Reinforced Concrete under Combined Mechanical and Climatic Loads, Aedificatio Publishers, Freiburg.
Zhao, T., Mao, X., Furtwängler, K., and Wittmann, F.H. (2005b). Engineered cement-based composites (ECC) – New ultra ductile materials for more durable construction and repair, Restoration of Buildings and Monuments, 11, pp. 183–188.
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Wittmann, F.H. (2011). Durability under Combined Loads. In: Wittmann, F., Van Zijl, G. (eds) Durability of Strain-Hardening Fibre-Reinforced Cement-Based Composites (SHCC). RILEM State of the Art Reports, vol 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0338-4_5
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DOI: https://doi.org/10.1007/978-94-007-0338-4_5
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