Abstract
Ultra-high performance cementitious composites (UHPCC) were prepared by replacing 60% of cement with ultra-fine industrial waste powders. The dynamic damage and compressive stress-strain relations of UHPCC were studied using split Hopkinson pressure bar (SHPB). The damage of UHPCC subjected to repeated impact was measured by the ultrasonic pulse velocity method. Results show that the dynamic damage of UHPCC increases linearly with impact times and the abilities of repeated impact resistance of UHPCC are improved with increasing fiber volume fraction. The stress waves on impact were recorded and the average stress, strain and strain rate of UHPCC were calculated based on the wave propagation theory. The effects of strain rate, fibers volume fraction and impact times on the stress-strain relations of UHPCC were studied. Results show that the peak stress and elastic modulus decrease while the strain rate and peak strain increase gradually with increasing impact times.
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References
Tang M C. High performance concrete-past, present and future. In: Schmidt M, Fehling E, Geisenhansluke C, eds. Proceedings of the International Symposium on Ultra High Performance Concrete. Kassel, Germany, 2004. 3–9
Resplendino J, Lyon C. First recommendation for ultra-high-performance concrete and example of application. In: Schmidt M, Fehling E, Geisenhansluke C, eds. Proceedings of the International Symposium on Ultra High Performance Concrete. Kassel, Germany, 2004. 79–90
Reda M M, Shrive N G, Gillott J E. Microstructural investigation of innovative UHPC. Cem Concr Res, 1999, 29: 323–329
Oliver B, Claude P, Jerome D. Reactive powder concrete: from theory to practice. Concr Int, 1996, 18: 47–49
Richard P, Cheyrezy M. Composition of reactive powder concrete. Cem Concr Res, 1995, 25: 1501–1511
Han Z. A study on testing techniques for concrete-like materials under compressive impact loading. Cem Concr Compos, 1998, 20: 293–299
Han Z, Gary G. On the use of SHPB techniques to determine the dynamic behavior of materials in the range of small strains. J Int Solids Struct, 1996, 33: 3363–3375
Ross C A, Tedesco J W, Kuennen S T. Effects of strain rate on concrete strength. ACI Mater J, 1995, 92: 37–47
Lok T S, ASCE M, Li X B, et al. Testing and response of large diameter brittle materials subjected to high strain rate. J Mater Civ Eng, 2002, 14: 262–269
Grote D L, Park S W, Zhou M. Dynamic behavior of concrete at high strain rates and pressures: I. Experimental characterization. Int J Imp Eng, 2001, 25: 869–886
Lai J, Sun W. Dynamic behaviour and visco-elastic damage model of ultra-high performance cementitious composite. Cem Concr Res, 2009, 39: 1044–1051
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This work was supported by the National Natural Science Foundation of China (Grant No. 50808101), Jiangsu Provincial Program for Basic Research (Natural Science Foundation) (Grant No. BK2008417), China Postdoctoral Science Foundation (Grant No.20080431100), and Excellence Plan “Zijin Star” of NJUST.
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Lai, J., Sun, W. Dynamic damage and stress-strain relations of ultra-high performance cementitious composites subjected to repeated impact. Sci. China Technol. Sci. 53, 1520–1525 (2010). https://doi.org/10.1007/s11431-010-3133-2
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DOI: https://doi.org/10.1007/s11431-010-3133-2