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Wpływ domieszki redukującej skurcz oraz włókien polipropylenowych na skurcz betonu przy wysychaniu

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EN
The effect of shrinkage reducing admixture and polypropylene fibers on drying shrinkage behaviour of concrete
Języki publikacji
PL EN
Abstrakty
PL
W pracy przeprowadzono badania porównawcze wpływu włókien polipropylenowych i komercyjnej domieszki redukującej skurcz na skurcz przy wysychaniu, absorpcję wody, a także wytrzymałość na ściskanie betonu. Badano betony o stałej zawartości cementu, współczynniku wodno/cementowym oraz konsystencji z dodatkiem domieszki oraz włókien badanych osobno jak również wprowadzanych razem. Uzyskane wyniki pokazały, że dodatek włókien zwiększa potrzebę stosowania domieszki upłynniającej w celu uzyskania założonej konsystencji. Zastosowanie domieszki redukującej skurcz oraz włókien polipropylenowych pozytywnie wpływa na wytrzymałość na ściskanie i przepuszczalność betonu. Zarówno domieszka redukująca skurcz wysychania jak i włókna spowodowały zmniejszenie skurczu betonu. Wpływ włókien na skurcz był większy niż domieszki. Odnośnie skurczu wysychania wyniki doświadczeń wykazały, że równoczesny dodatek do betonów domieszki i włókien polipropylenowych nie wykazał korzystnego wpływu, wręcz przeciwnie, spowodował jedynie wzrost kosztów.
EN
The paper presents comparative studies on the impact of polypropylene fibers and commercial shrinkage reducing admixture on the drying shrinkage, water absorption, as well as compressive strength of concrete. Concretes with a constant cement content, water/cement ratio and consistency with the addition of admixture and fibers tested separately as well as introduced together were tested. The obtained results showed that the addition of fibers increases the need for a superplasticizing admixture in order to obtain the assumed consistency. The use of shrinkage reducing admixture and polypropylene fibers has a positive effect on the compressive strength and the permeability of concrete. Both the shrinkage reducing admixture as well as the fibers have reduced the drying shrinkage of the concrete. The impact of fibers on shrinkage was greater than the impact of the admixture. Regarding the drying shrinkage, the experimental results showed that the simultaneous addition of shrinkage reducing admixture and polypropylene fibers did not show a beneficial effect, on the contrary, it only caused an increase in costs.
Czasopismo
Rocznik
Strony
227--237
Opis fizyczny
Bibliogr. 32 poz., il., tab.
Twórcy
  • Department of Civil Engineering, Eng. Faculty, Uludag University, Nilüfer-Bursa, Turkey
autor
  • Department of Civil Engineering, Eng. Faculty, Uludag University, Nilüfer-Bursa, Turkey
  • Department of Civil Engineering, Eng. Faculty, Uludag University, Nilüfer-Bursa, Turkey
Bibliografia
  • 1. B. Baradan, H. Yazıcı, S. Aydın, Concrete. Izmir: Dokuz Eylul University Engineering Faculty Publications, 2015, (in Turkish).
  • 2. N. Hearn, Effect of shrinkage and load-induced cracking on water permeability of concrete, ACI Mater. J. 96, 234-241 (1999).
  • 3. B. Baradan, H. Yazıcı, H. Ün, Durability of Concrete and Reinforced Concrete Structures, Turkey Ready Mixed Concrete Association, 2010, (in Turkish).
  • 4. İ. B. Topçu, M. Canbaz, Effect of different fibers on the mechanical properties of concrete containing fly ash, Constr. Build. Mater. 21, 1486 -1491 (2007).
  • 5. J. A. Almudaiheem, W. Hansen, Effect of specimen size and shape on drying shrinkage of concrete, Mater. J. 84, 130-135 (1987).
  • 6. K. J. Folliard, N. S. Berke, Properties of high-performance concrete containing shrinkage-reducing admixture, Cem. Concr. Res. 27, 1357-1364 (1997).
  • 7. T. Kadıoğlu, Shrinkage reducing admixtures, Master Thesis, Istanbul Technical University Institute of Science. Istanbul, Turkey, 2006, (in Turkish).
  • 8. F. Rajabipour, G. Sant, J. Weiss, Interactions between shrinkage reducing admixtures (SRA) and cement paste’s pore solution, Cem. Concr. Res. 38, 606-615 (2008).
  • 9. J. M. Ruacho, R. Gettu, A. Aguado, Influence of shrinkage-reducing admixtures on the reduction of plastic shrinkage cracking in concrete, Cem. Concr. Res. 39, 141-146 (2009).
  • 10. B. Rongbing, S. Jian, Synthesis and evaluation of shrinkage-reducing admixture for cementitious materials, Cem. Concr. Res. 35, 445-448 (2005).
  • 11. N. Quangphu, J. Linhua, L. Jiaping, T. Qian, D. Tienquan, Influence of shrinkage-reducing admixture on drying shrinkage and mechanical properties of high-performance concrete, Water Sci. Eng. 1, 67-74 (2008).
  • 12. Z. Sun, Q. Xu, Microscopic, physical and mechanical analysis of polypropylene fiber reinforced concrete, Mater. Sci. Eng. A, 527, 198-204 (2009).
  • 13. J. Y. Wang, N. Banthia, M. H. Zhang, Effect of shrinkage reducing admixture on flexural behaviors of fiber reinforced cementitious composites, Cem. Concr. Comp. 34, 443-450 (2012).
  • 14. D. Y. Yoo, S. T. Kang, J. H. Lee, Y. S. Yoon, Effect of shrinkage reducing admixture on tensile and flexural behaviors of UHPFRC considering fiber distribution characteristics, Cem. Concr. Res. 54, 180-190 (2013).
  • 15. T. Türker, Real precaution against internal stresses in concrete, Structure and Material, 150, 24-25 (2000), (in Turkish).
  • 16. T. Aly, J. G. Sanjayan, F. Collins, Effect of polypropylene fibers on shrinkage and cracking of concretes, Mater. Struct. 41, 1741 (2008).
  • 17. R. Bloom, A. Bentur, Free and restrained shrinkage of normal and high strength concretes, ACI Mater. J. 92, 211-217 (1992).
  • 18. A. Mardani-Aghabaglou, E. Yoğurtcu, Ö. Andiç-Çakır, Water transport of lightweight concrete with different aggregate saturation levels, ACI Mater. J. 112, 681-691, (2015).
  • 19. P. C. Aïtcin, High Performance Concrete, New York, E&FN SPON, (2004).
  • 20. TS EN 197-1. Cement - Part 1: Composition, specifications and conformity criteria for common cements. Ankara, Institute of Turkish Standards, (2012), (in Turkish).
  • 21. TS EN 1097-6. Tests for mechanical and physical properties of aggregates - Part 6: Determination of particle density and water absorption. Ankara, Institute of Turkish Standards, (2013), (in Turkish).
  • 22. TS EN 206. Concrete - Specification, performance, production and conformity. Ankara, Institute of Turkish Standards, (2013), (in Turkish).
  • 23. TS EN 12350-2. Testing fresh concrete - Part 2: Slump-test. Ankara, Institute of Turkish Standards, (2010), (in Turkish).
  • 24. TS EN 12350-6. Testing fresh concrete - Part 6: Density. Ankara, Institute of Turkish Standards, (2010), (in Turkish).
  • 25. TS EN 12390-3. Testing hardened concrete - Part 3: Compressive strength of test specimens. Ankara, Institute of Turkish Standards, (2010), (in Turkish).
  • 26. ASTM C642-97. Standard Test Method for Density, Absorption, and Voids in Hardened Concrete, Annual Book of ASTM Standards, American Society for Testing and Materials, Philadelphia, PA, USA, (1997).
  • 27. ASTM C157, Standard Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete, Annual Book of ASTM Standards, American Society for Testing and Materials, Philadelphia, PA, USA, (2017).
  • 28. A. Mardani-Aghabaglou, C. Yüksel, H. Hosseinnezhad, K. Ramyar, Performance of steel micro fiber reinforced mortar mixtures containing plain, binary and ternary cementitious systems, J. Green Build. 11, 4, 109-130 (2016).
  • 29. Code, CEB-FIB Model. CEB information report no. 213/214. Comite Euro-International DuBeton, Lausanne, (1993).
  • 30. P. K. Mehta, P. J. M. Monteiro, Concrete: Microstructure, Properties and Materials, 3rd ed., New York: McGraw-Hill, (2006).
  • 31. A. B. Eberhardt, R. J. Flatt, Working mechanisms of shrinkage reducing admixtures, Science and Technology of Concrete Admixtures, 305-320 (2016).
  • 32. N. Yousefieh, A. Joshaghani, E. Hajibandeh, M. Shekarchi, Influence of fibers on drying shrinkage in restrained concrete, Constr. Build. Mater. 148, 833-845 (2017).
Uwagi
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a65b170b-6924-47b5-9a17-f67509417575
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