Wytrzymałość kompozytów cementowych zbrojonych włóknami mieszanymi

• Autorzy: Krishnaraja A. R. , Kandasamy S. , Anandakumar S. , Jegan S. M.

Warianty tytułu

EN

Mechanical performance of hybrid engineered cementitious composites

• Języki publikacji: PL EN

Abstrakty

PL

Beton kompozytowy ECC (Engineered Cementitious Concrete) to zaawansowany kompozyt cementowy. Niniejsze badanie miało na celu poprawę właściwości mechanicznych betonu ECC poprzez zastosowanie procesu hybrydyzacji. Badaniu poddanych zostało pięć różnych mieszanek. Hybrydowe mieszanki ECC przygotowano stosując wspólnie włókna alkoholu poliwinylowego z włóknami polipropylenowymi o udziale objętościowym 1,0% każde, oraz włókna polialkoholu winylowego z włóknami stalowymi o udziale objętościowym 1,0% każde. Kolejne trzy mieszanki ECC zawierały 2,0% objętościowych włókien z alkoholu poliwinylowego, włókien polipropylenowych, lub włókien stalowych. Proces hybrydyzacji pozwolił na znaczne podwyższenie wytrzymałości na ściskanie, wytrzymałości na rozciąganie oraz zginanie.

EN

Engineered Cementitious Concrete (ECC) is a type of high performance cementitious composites. In this investigation, an effort is made to enhance the performance of ECC by using hybridation process. Five different mixes are used in this study, hybrid ECC mixes are prepared by the combination is made with poly vinyl alcohol fiber of 1.0% volume fraction and polypropylene fiber with 1.0% volume fraction and followed by another mix of poly vinyl alcohol fiber of 1.0% volume fraction with steel fiber of 1.0% volume fraction. Another three ECC mixes are developed with 2.0% volume fraction of poly vinyl alcohol, polypropylene fiber and steel fiber. This hybridation process has a notable achievement in compressive strength, direct tensile strength and flexural strength.

Słowa kluczowe

PL

kompozyt cementowy; ECC; beton kompozytowy; układ hybrydowy; wytrzymałość na rozciąganie; wytrzymałość na zginanie

EN

cementitious composite; ECC; engineered cementitious composites; hybrid system; tensile strength; flexular strength

• Wydawca: Fundacja Cement, Wapno, Beton
• Czasopismo: Cement Wapno Beton
• Rocznik: 2018
• Tom: R. 23/85, nr 6
• Strony: 479--486
• Opis fizyczny: Bibliogr. 24 poz., il., tab.

Twórcy

autor

Krishnaraja A. R.

• Department of Civil Engineering, Kongu Engineering College, Perundurai, Tamilnadu, India

autor

Kandasamy S.

• Department of Civil Engineering, Government College of Technology, Coimbatore, Tamilnadu, India

autor

Anandakumar S.

• Department of Civil Engineering, Kongu Engineering College, Perundurai, Tamilnadu, India

autor

Jegan S. M.

• Department of Civil Engineering, NSN College of Engineering and Technology, Karur, Tamilnadu, India

Bibliografia

• 1. V. C. Li, Advances in ECC research, ACI Special Publications. 206, 373-400 (2002).
• 2. V. C. Li, On engineered cementitious composites (ECC), Journal of advanced concrete technology. 1, 3, 215-230 (2003).
• 3. E. Silva, J. Coelho, J. Bordado, Strength improvement of mortar composites reinforced with newly hybrid-blended fibres: Influence of fibres geometry and morphology, Constr. Build. Mat. 40, 473-480 (2013).
• 4. S. Ahmed, M. Maalej, Tensile strain hardening behaviour of hybrid steel-polyethylene fibre reinforced cementitious composites, Constr. Build. Mat. 23, 1, 96-106 (2009).
• 5. V. C. Li, Engineered Cementitious Composites (ECC), Material, Structural, and Durability Performance, 2008.
• 6. Y. Y. Kim, H.-J. Kong, V.C. Li, Design of engineered cementitious composite suitable for wet-mixture shotcreting, Materials Journal, 100, 6,511-518 (2003).
• 7. S. Qudah, M. Maalej, Application of Engineered Cementitious Composites (ECC) in interior beam–column connections for enhanced seismic resistance, Engineering Structures, 69, 235-245 (2014).
• 8. S. Qian et al., Life cycle analysis of pavement overlays made with Engineered Cementitious Composites, Cem. Concr. Comp., 35, 1, 78-88 (2013).
• 9. R. Zhang et al., Application of PP-ECC in beam-column joint connections of rigid-framed railway bridges to reduce transverse reinforcements, Engineering Structures, 86, 146-156 (2015).
• 10. M. D. Lepech, V. C. Li, Application of ECC for bridge deck link slabs, Materials and Structures. 42, 9,1185 (2009).
• 11. H. M. E.-D. Afefy, M. H. Mahmoud, Structural performance of RC slabs provided by pre-cast ECC strips in tension cover zone, Constr. Build. Mat., 65, 103-113 (2014).
• 12. H. Kasagani, C. Rao, The influence of hybrid glass fibres addition on stress-strain behaviour of concrete, Cement Wapno Beton, 21, 361-372 (2016).
• 13. X. R. Cai, B. Q. Fu, S. L. Xu, The apparent density, tensile properties and drying shrinkage of ultra high toughness cementitious composites, Advanced Materials Research, 261-263, 223-227 (2011).
• 14. S. F. Ahmed, M. Maalej, P. Paramasivam, Analytical model for tensile strain hardening and multiple cracking behavior of hybrid fiber-engineered cementitious composites, J. of Materials in Civil Engineering, 19, 7,527 - 539 (2007).
• 15. S. F. U. Ahmed, H. Mihashi, Strain hardening behavior of lightweight hybrid polyvinyl alcohol (PVA) fiber reinforced cement composites, Mat. Struct., 44, 6,1179-1191 (2011).
• 16. L. S. Lawler, D. Zampini S. P. Shah, Microfiber and macrofiber hybrid fiber-reinforced concrete, J. of Materials in Civil Engineering. 17, 5,595 - 604 (2005).
• 17. H. R. Pakravan, M. Latifi , M. Jamshidi, Ductility improvement of cementitious composites reinforced with polyvinyl alcohol-polypropylene hybrid fibers, J. of Industrial Textiles. 45, 5,637-651 (2016).
• 18. W. Yao, J. Li, K. Wu, Mechanical properties of hybrid fiber-reinforced concrete at low fiber volume fraction, Cem. Concr. Res., 33, 1, 27-30 (2003).
• 19. A. R. Krishnaraja, S. Kandasamy, Flexural Performance of Hybrid Engineered Cementitious Composite Layered Reinforced Concrete Beams, Periodica Polytechnica Civil Engineering, (2018), https://doi.org/10.3311/ PPci.11748.
• 20. A. R. Krishnaraja, S. Kandasamy, Flexural Performance of Engineered Cementitious Compositelayered Reinforced Concrete Beams, Archives of Civil Engineering, 63, 4, 173-189 (2017).
• 21. S. H. Said, H. A. Razak, I. Othman, Flexural behavior of engineered cementitious composite (ECC) slabs with polyvinyl alcohol fibers, Constr. Build. Mat., 75, 176-188 (2015).
• 22. Chang-Geun Cho, Hyeon-Jin Lim, Bang-Yeon Lee, Yeol Choi, Experiments and performances of strain-hardening fiber low cementitious composites, Advances in Mechanical Engineering. 7, 1-7 (2015).
• 23. A. Krishnaraja, S. Kandasamy, Mechanical Properties of Engineered Cementitious Composites, International Journal of ChemTech Research, 10, 8, 314-347 (2017).
• 24. V. Li, Engineered Cementitious Composites (ECC) Material, Structural, and Durability Performance, Concrete Construction Engineering Handbook, Chapter 24, 2008.