Textile reinforced concrete (TRC) shells for strengthening and retrofitting of concrete elements: influence of admixtures

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• 作者：Michael Tsesarsky ; Amnon Katz ; Alva Peled ; Oren Sadot
• 关键词：Textile reinforced concrete ; Strengthening ; Impact loading ; Admixtures ; Microstructure
• 刊名：Materials and Structures
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：48
• 期：1-2
• 页码：471-484
• 全文大小：2,148 KB
• 参考文献：1. Bentur A, Mindess S (2007) Fibre reinforced cementitious composites. Taylor and Francis, London
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  7. Zhang J, Maalej M, ST Quek, YY Teo Drop weight impact on hybrid-fiber ECC blast/shelter panels. In: Banthia N, Uomoto T, Bentur A, Shah SP (eds) Third international conference on construction materials: performance, innovation and structural applications. Vancouver, 2005
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  11. Peled A, Mobasher B (2007) Tensile behavior of fabric cement-based composites: pultruded and cast. J Mater Civ Eng 19(4):340-48. doi:10.1061/(asce)0899-1561(2007)19:4(340) CrossRef
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  13. Contamine R, Larbi AS, Hamelin P (2013) Identifying the contributing mechanisms of textile reinforced concrete (TRC) in the case of shear repairing damaged and reinforced concrete beams. Eng Struct 46:447-58. doi:10.1016/j.engstruct.2012.07.024 CrossRef
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  15. Hegger J, Shams A, Kulas C, Horstmann M (2011) Application potential of textile reinforced concrete. In: Toledo RD, Silva FA, Koenders EAB, Fairbairn EMR (eds) 2nd international RILEM conference on strain hardening cementitious composites, vol 81. RILEM Proceedings pp 421-28
  16. Larbi AS, Agbossou A, Hamelin P (2013) Experimental and numerical investigations about textile-reinforced concrete and hybrid solutions for repairing and/or strengthening reinforced concrete beams. Compos Struct 99:152-62. doi:10.1016/j.compstruct.2012.12.005 CrossRef
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  19. Mechtcherine V (2013) Novel cement-based composites for the strengthen
• 作者单位：Michael Tsesarsky (1) (2)
  Amnon Katz (3)
  Alva Peled (1)
  Oren Sadot (4)
  
  1. Department of Structural Engineering, Ben-Gurion University of the Negev, POB 653, 84105, Beer-Sheva, Israel
  2. Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, POB 653, 84105, Beer-Sheva, Israel
  3. Faculty of Civil and Environmental Engineering, Technion-Israel Institute of Technology, 32000, Haifa, Israel
  4. Department of Mechanical Engineering, Ben-Gurion University of the Negev, POB 653, 84105, Beer-Sheva, Israel
  
• 刊物类别：Engineering
• 刊物主题：Structural Mechanics
  Theoretical and Applied Mechanics
  Mechanical Engineering
  Operating Procedures and Materials Treatment
  Civil Engineering
  Building Materials
  
• 出版者：Springer Netherlands
• ISSN：1871-6873

文摘

The mechanical behavior under impact loading of concrete elements strengthened with shells of textile reinforced concrete (TRC) was studied. The strengthening shells were made of either alkali-resistant glass or polyethylene (PE) fabrics that were impregnated with several cementitious matrices modified by common admixtures. Testing the strengthened elements for impact loading (strain rate from 0.4 to 1?s?) at flexure showed that the TRC reinforced elements conferred improved load capacity and impulse absorption. For glass strengthened TRC elements, the extent of the improvement depended on admixture grain size, such that smaller grain sizes were associated with better performance. For PE strengthened TRC elements, no similar dependency was found. These results correlate well with the behavior of the standalone TRC shells and with the properties of the fabrics themselves. PE TRC strengthened elements were found, via impulse loading tests, to have load carrying capacities comparable to those of elements strengthened with glass TRC, but without matrix additives. These findings suggest that low cost, commercially available PE textile could be used in TRC applications.