Effect of curing regime on polymer-cement concrete properties

• Autorzy: Woyciechowski P.

Identyfikatory

DOI

10.24425/ace.2020.131780

Warianty tytułu

PL

Wpływ przebiegu pielęgnacji na właściwości betonu polimerowo-cementowego

• Języki publikacji: EN

Abstrakty

EN

The general standards and guidelines recommendations for PCC suggest alternating conditions of curing: starting with wet conditions for effective hydration of Portland cement followed by air-dry conditions for polymer hardening. The often accepted curing regime of PCC covers 5 days of wet curing and then the air-dry curing but it is not the optimum one. The aim of the investigation was to find the best scenario for PCC with two types of polymer modifiers: two-component epoxy resin and water dispersion of polyacrylates. The following exploitation properties were accepted as the criteria of evaluation of PCC curing effectiveness: compressive strength, tensile splitting strength, surface tensile strength (by pull-off method), wear resistance, water penetration under pressure and resistance to carbonation. The optimum time of PCC wet curing is possibly between 7 and 14 days, however, it have to be verified experimentally for specific PCC composition.

PL

Ogólne normy i zalecenia dotyczące PCC sugerują naprzemienne warunki pielęgnacji: począwszy od warunków mokrych dla skutecznej hydratacji cementu portlandzkiego, a następnie warunków suszenia na powietrzu korzystnych z uwagi na utwardzanie polimerów. Często akceptowany reżim pielęgnacji PCC obejmuje 5 dni w warunkach mokrych, a następnie suszenie na powietrzu, ale nie jest to optymalny sposób. Celem badania była optymalizacja scenariusza pielęgnacji dla PCC z dwoma rodzajami polimerów: dwuskładnikową żywicą epoksydową i wodną dyspersją poliakrylanów. Jako kryteria oceny skuteczności pielęgnacji PCC przyjęto następujące właściwości eksploatacyjne: wytrzymałość na ściskanie, wytrzymałość na rozciąganie przy rozłupywaniu, wytrzymałość na rozciąganie powierzchniowe (metodą pull-off), odporność na ścieranie, głębokość wnikania wody pod ciśnieniem i odporność na karbonatyzację. Ustalono w wyniku badań, że optymalny czas pielęgnacji PCC w wodzie wynosi od 7 do 14 dni, jednak wskazana jest weryfikacja eksperymentalna w przypadku konkretnego składu PCC.

Słowa kluczowe

EN

composite; polymer; polymer-cement concrete; curing; properties

PL

kompozyt; polimer; beton polimerowo-cementowy; pielęgnacja; właściwości

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2020
• Tom: Vol. 66, nr 1
• Strony: 143--160
• Opis fizyczny: Bibliogr. 42 poz., il., tab.

Twórcy

autor

Woyciechowski P.

• Warsaw University of Technology, Faculty of Civil Engineering, Warsaw, Poland

Bibliografia

• 1. ACI - American Concrete Institute (2009) Report No 548.3 R-09: Report on Polymer-Modified Concrete, American Concrete Institute, Farmington Hill, MI, US.
• 2. Al-Sawaidania A. M. (2017) Effects of Curing Time on the Performance of Volcanic Scoria-Based Binder Concretes, ACE vol 63, issue 1, 133-150
• 3. ASTM C 1439:2013 Standard Test Methods for Evaluating Latex and Powder Polymer Modifiers for use in Hydraulic Cement Concrete and Mortar.
• 4. Bakker R.F.M. (1988), Initiation period, in P. Schiessl (Ed), Corrosion of steel in concrete: Report of the Technical Committee 60 - CSC RILEM, Chapman and Hall, London, 22-54.
• 5. Beeldens A., Van Gemert D., Schorn H., Ohama Y., Czarnecki L., (2005) From microstructure to macrostructure: an integrated model of structure formation in polymer-modified concrete, Mat.&Struct., 38, 601-607.
• 6. Bhutta M.A. and Ohama Y.(2010) Recent status of research and development of concrete-polymer composites in Japan. Concrete Research Letters 1(4): 125–130.
• 7. Czarnecki L., Woyciechowski P. (2012), Concrete carbonation as a limited process and its relevance to concrete cover thickness, ACI Materials Journal, American Concrete Institute, 109(3), 275-282
• 8. Czarnecki L., Woyciechowski P. (2015), Modelling of concrete carbonation; is it a process unlimited in time and restricted in space?, Bulletin of the Polish Academy of Sciences: Technical Sciences, 63(1), 43-54.
• 9. Czarnecki L., Woyciechowski P., Adamczewski G. (2018) Risk of concrete carbonation with mineral industrial by-products, KSCE Journal of Civil Engineering, 22(2), pp. 755-764
• 10. Evbuomwan NFO. (1997), Flexural behavior of reinforced polymer modified mortar under wet conditions, In Proceedings of 3rd Southern African Conf. on Polymers in Concrete, Johannesburg, RSA, pp. 117-124.
• 11. Fagerlund, G. (1992), Betongkonstruktioners beständighet: en översikt (3:e uppl.). Cementa, (in Swedish).
• 12. German Federal Ministry for Transport: Technical guidelines for concrete repair systems made of cement mortar/concrete with a polymer additive (PCC) TP BE-PCC (1990).
• 13. German Federal Ministry for Transport: Additional Technical Contract Conditions and Guidelines for the Protectio and Repair of Concrete Construction Components, ZTV-SIB, (1991).
• 14. Hergenröder M. (1992), Zur statistichen Instandhaltungsplanung für bestehende Betonbauwerke bei Karbonatisierung des Betons und möglicher der Bewerhung, Technische Universität München (in German).
• 15. Jaworska B., Sokołowska J. Łukowski P., Jaworski J. (2016) Waste Mineral Powders as a Components of Polymer-Cement Composites, ACE vol. 61 issue 4, 199-210
• 16. Kasai Y., Matsui I. and Fukushima Y., Physical properties of polymer-modified mortars (1981), In 3rd Int. Congress on Polymers in Concrete, Koriyama, Japan, 178-192.
• 17. Knapen E. (2007), Mirostructure formation in cement mortars modified with water-soluble polymers, PhD Thesis K.U. Leuven
• 18. Knapen E. and van Gemert D. (2009) Effect of underwater storage on bridge formation by water-soluble polymers in cement mortars. Construction and Building Materials 23(11): 3420–3425
• 19. Łukowski P. (2008), The role of polymers in formation of properties of polymer-cement binders and composites, Warsaw University of Technology Ed, Warsaw, Poland (in Polish).
• 20. Łukowski P., Woyciechowski P., Adamczewski G., Rudko M., Filipek K. (2015), Curing of Polymer-Cement Concrete – Search for a Compromise. Advanced Materials Research 1129, 222-229
• 21. Łukowski P. (2016) Studies on the Microstructure of Epoxy-Cement Composites ACE vol 62, iss. 2, 101-113
• 22. Makhtar A.M., Properties and performance of polymer modified concrete (1997) Ph.D.Thesis, The University of Leeds, Leeds.
• 23. Nilsson, L-O. (1997), Interaction between microclimate and concrete – a perquisite for deterioration, Construction and Building Materials, 10(5), 301-308
• 24. NT BUILD 428:1994, Nordtest Method. Concrete and mortar, polymer cement (PCC): moulded test specimens – curing.
• 25. Ohama Y., Ramachandran V.S., (1995) Polymer - Modified Mortars and Concretes, in: V.S. Ramachandran (Ed.), Concrete Admixtures Handbook - Properties, Science and Technology, Noyes Publications, New Jersey, 1995, pp.558-656.
• 26. PN EN 1542:2000 Products and systems for the protection and repair of concrete structures. Test methods. Measurement of bond strength by pull-off.
• 27. PN EN 12190:2000 Products and systems for the protection and repair of concrete structures. Test methods. Determination of compressive strength of repair mortar.
• 28. PN EN 13396:2005 Products and systems for the protection and repair of concrete structures. Test methods. Measurement of chloride ion ingress.
• 29. PN EN 13412:2008 Products and systems for the protection and repair of concrete structures. Test methods. Determination of modulus of elasticity in compression
• 30. PN-EN 12350-2:2011 Testing fresh concrete. Slump-test
• 31. PN-EN 12390-2:2011 Testing hardened concrete. Making and curing specimens for strength tests.
• 32. PN-EN 12390-6:2011 Testing hardened concrete. Tensile splitting strength of test specimens.
• 33. PN-EN 12390-8:2011 Testing hardened concrete. Depth of penetration of water under pressure.
• 34. PN-EN 13892-3:2015 Methods of test for screed materials. Determination of wear resistance. Böhme.
• 35. PKN-CEN/TS 12390-12:2017 Testing hardened concrete - Part 12: Determination of the potential carbonation resistance of concrete: Accelerated carbonation method
• 36. RILEM Technical Committee 105 C-PC Concrete - Polymer Composites, State-of-the-Art Report (1996),
• 37. Sokołowska J.J., Woyciechowski P., Adamczewski G. (2013), Influence of Acidic Environments on Cement and Polymer-Cement Concretes Degradation, Advanced Materials Research, 687, 144-149.
• 38. Specification and guidelines for polymer-modified cementitious flooring as wearing surfaces for industrial and commercial use (2001), EFNARC.
• 39. Wai Hoe Kwan, Mahyuddin Ramli and Chee Ban Cheah (2015) Accelerated curing regimes for polymer-modified cement, Magazine of Concrete Research. 67 (23): 1233-1241 https://doi.org/10.1680/macr.14.00097
• 40. Woyciechowski P. (2013), Model of concrete carbonation, Warsaw University of Technology Ed., Scientific works. Buildings 157 (in Polish).
• 41. Woyciechowski P. (2013) Influence of mineral additives on concrete carbonation, In Proceedings of Brittle Matrix Composites 10, Woodhead Publ. 115-124, DOI: 10.1016/B978-0-85709-988-4.50011-6
• 42. Żmij A., Klemczak B., Górski M., (2017) Polymer-cement based concrete – review of properties and possibility of application in structural members, ICEUBI2017 – International Congress on Engineering – A Vision for the Future, Covilhã, Portugal

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).