Flexural Behaviour of Fibre Reinforced Concrete Beams with Different Aspect Ratios

• Autorzy: Baskar K. , Elangovan G. , Das K. M.

Identyfikatory

DOI

10.5604/01.3001.0010.7798

Warianty tytułu

PL

Właściwości mechaniczne betonu wzmocnionego włóknami stalowymi i polipropylenowymi

• Języki publikacji: EN

Abstrakty

EN

The performance of conventional concrete is enhanced by the addition of fibres in concrete. Consequently the brittleness in concrete is reduced, and its acceptable ductility is also ensured by this addition. In this paper the strength of concrete cubes, cylinders and beams cast using M25 grade concrete and reinforced with steel and polypropylene fibres is presented. Also hybrid fibres with crimped steel and polypropylene were used in a concrete matrix to study improvements in the strength properties of steel, polypropylene and hybrid polypropylene as well as steel (crimped) fibres of various proportion i.e., 0.25%, 0.5%, 0.75%, 1% and 0.5% (0.25% of steel and 0.25% of polypropylene), 0.75% (0.5% of steel and 0.25% of polypropylene, 0.25% of steel and 0.5% of polypropylene) and 1% of various combinations of hybrid fibres for 7,14 and 28 days. The main reason for synthetic fibres in the concrete matrix is to improve the post cracking response of the concrete to improve the energy absorption capacity and ductility as well as to provide crack resistance and control. The introduction of this type of concrete was brought in as a solution to develop concrete with enhanced flexural and tensile strength. In this paper we analysed and present a comparison between conventional concrete and fibre reinforced concrete, leading to a crack free structure.

PL

W pracy zbadano właściwości mechaniczne betonu wzmocnionego włóknami stalowymi i polipropylenowymi. Przedstawiono wyniki badań wytrzymałości kostek, cylindrów i belek wykonanych z czystego betonu i betonu wzmocnionego włóknami stalowymi i polipropylenowymi. Zastosowano również włókna hybrydowe z karbikowaną stalą i polipropylenem w matrycy betonowej w celu zbadania poprawy właściwości wytrzymałościowych. Użyto włókien w różnych proporcjach tj. 0,25%, 0,5%, 0,75%, 1% i 0,5% (0,25% stali i 0,25% polipropylenu), 0,75% (0,5% stali i 0,25% polipropylenu, 0,25% stali i 0,5% polipropylenu) oraz 1% różnych kombinacji włókien hybrydowych. Zastosowanie włókien syntetycznych w matrycy betonowej poprawiło zdolność pochłaniania energii, a co za tym idzie spowodowało polepszenie odporności betonu na pękanie. Wprowadzenie betonu wzmocnionego włóknami stalowymi i polipropylenowymi zaproponowano jako rozwiązanie do opracowania betonu o zwiększonej wytrzymałości na zginanie i rozciąganie.

Słowa kluczowe

EN

hybrid; steel fibre; polypropylene fibre; RC element; flexural strength

PL

włókna hybrydowe; włókna stalowe; włókna polipropylenowe; wytrzymałość na zginanie

• Wydawca: Sieć Badawcza Łukasiewicz - Łódzki Instytut Technologiczny
• Czasopismo: Fibres & Textiles in Eastern Europe
• Rocznik: 2018
• Tom: Vol. 26, no. 1 (127)
• Strony: 59--66
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Baskar K.

• P.S.N.A College of Engineering and Technology, Civil Engineering Department, Dindigul – 624622 Tamilnadu, India

autor

Elangovan G.

• University College of Engineering, Civil Engineering Department, Pattukottai – 614 701 Tamilnadu, India

autor

Das K. M.

• R.V.S Educational Trust’s Group of Institution, Civil Engineering Department, Dindigul – 624005 Tamilnadu, India

Bibliografia

• 1. Thiyagu1 K, Hema C, Elanchezhiyan R. Strengthening of RC Element with Using Hybrid Fibre Reinforced System and Its Comparative Study on SFRC and GFRC Strengthening Systems, 2016.
• 2. Shetty MS, (Reprint 2011) Concrete Technology. Published by S.CHAND & COMPANY LTD, New Delhi.
• 3. Shende AM, Pande AM, Gulfam Pathan M. Experimental Study on Steel FIBRE Reinforced Concrete for M-40 Grade. International Refereed Journal of Engineering and Science (IRJES) 2012; 1, 1. ISSN (Online) 2319-183X, (Print) 2319-1821.
• 4. Vairagade V S, Kene K S. Experimental Investigation on Hybrid FIBRE Reinforced Concrete. International Journal of Engineering Research and Applications (IJERA) 2012; 2, 3: 1037-1041.
• 5. Song P S, Hwang S. Mechanical Properties Of High-Strength Steel Fiber-Reinforced Concrete. Construction And Building Materials Elsevier Journals Ltd., 2012; 18: 669673.
• 6. Muntadher Ali Challoob, Vikas Srivastava. Effect of Fly Ash and Steel Fibre on Portland Pozzolana Cement Concrete. International Journal of Engineering Trends and Technology (IJETT) 2013; 5, 3.
• 7. Amit Rana. Some Studies on Steel FIBRE Reinforced Concrete. International Journal of Emerging Technology and Advanced Engineering 2013; 3, 1. (ISSN 2250-2459, ISO 9001:2008 Certified Journal).
• 8. Ahsanafathima K M, Shibivarghese. Behavioural study of steel fibre and polypropylene fibre reinforced concrete. International Journal of Research in Engineering & Technology 2014, 2, 10: 17-24. (IMPACT: IJRET) ISSN (E): 2321-8843; ISSN (P): 2347-4599
• 9. Selina Ruby G, Geethanjali C, Varghese Jaison, Muthu Priya P. Influence of Hybrid FIBRE on Reinforced Concrete. International Journal of Advanced Structures and Geotechnical Engineering 2014; 03, 01. ISSN 2319-5347.
• 10. Qian CX, Stroeven P. Development of hybrid polypropylene-steel fibre-reinforced concrete. Cement and Concrete Research 2000; 30; 63–69.
• 11. IS 10262-2009: Indian standard recommended method of concrete mix design.
• 12. Selvi M T, Thandavamoorthy TS. Studies on the Properties of Steel and Polypropylene Fibre Reinforced Concrete without any Admixture.
• 13. Banthia N, Sappakittipakorn M. Toughness enhancement in steel FIBRE reinforced concrete through FIBRE hybridization.
• 14. Parveen Ankit Sharma. Structural Behaviour of Fibrous Concrete Using Polypropylene Fibres. International Journal of Modern Engineering Research (IJMER) 2013; 3:12791282. ISSN: 2249-6645.
• 15. Patel P. A, Desai A K, Desai J A. Evaluation Of Engineering Properties For Polypropylene Fibre Reinforced Concrete. International Journal of Advanced Engineering Technology IJAET 2012; III, I: 42-4.
• 16. Priyanka Dilip.P, Remadevi K. A Study on Properties of Hybrid FIBRE Reinforced Concrete.
• 17. Pravin B.Shinde, Sangita V. Pawar, Kulkarni V P.Flexural Behavior Of Hybrid FIBRE Reinforced Concrete Deep Beam And Effect Of Steel & Polypropylene FIBRE On Mechanical Properties Of Concrete.
• 18. Rajarajeshwari B Vibhuti, Radhakrishna, Aravind N, Mechanical Properties Of Hybrid FIBRE Reinforced Concrete For Pavements. IJRET International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308.
• 19. Patodi S C, Kulkarni C V. Performance Evaluation Of Hybrid FIBRE Reinforced Concrete Matrix. International Journal of Engineering Research and Applications (IJERA) 2012; 2, 5: 1856-1863.
• 20. Vinay Kumar Singh. Effect of Polypropylene fibre on Properties of Concrete.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).