Ecological aspect of waste concrete fines application as cement replacement in fine-grained composites

• Autorzy: Pawluczuk E.
• Języki publikacji: EN

Abstrakty

EN

Cement production is a very energy-intensive process which is responsible for around 5-8% of global carbon dioxide emission caused by human activity. Thus, replacing it with other materials is very beneficial for the environment. The paper presents the research on the use of a waste concrete fines which partially replaced cement in concretes. The fines was obtained in the thermal and mechanical treatment of concrete rubble. Then the research experiment considered the impact of two factors on selected physical and mechanical properties of the fi ne-grained concretes. These factors included: contents of the recycled fines (10, 20, 30% of cement’s mass) and its grinding time (0, 30, 60min). The results confirmed that the right technology enables the recycled fines to substitute 20% of the cement’s weight. Such activity allows energy saving compared to clinker and will also cover part of the ever-increasing cement demand – while protecting raw material.

Słowa kluczowe

EN

waste concrete fine; recycling; ecological aspect; carbon dioxide emission

PL

odpad betonowy; recykling; aspekt ekologiczny; emisja dwutlenku węgla

• Wydawca: Polskie Stowarzyszenie Ekonomistów Środowiska i Zasobów Naturalnych
• Czasopismo: Ekonomia i Środowisko
• Rocznik: 2017
• Tom: nr 3
• Strony: 108--118
• Opis fizyczny: Bibliogr. 14 poz., tab., wykr.

Twórcy

autor

Pawluczuk E.

• Bialystok University of Technology Faculty of Civil and Environmental Engineering Wiejska street 45A, 15-351 Bialystok, Poland

Bibliografia

• Ahmari S. et al. (2012), Production of geopolymeric binder from blended waste concrete powder and fly ash, ”Constr Build Mater” No. 35, p. 718-729
• Bio Intelligence Service, (2011), Service contract on the management of construction and demolition waste – SR 1, Paris 2011
• Błaszczyński T.Z., Król M., (2014), Produkcja betonu a problem redukcji emisji dwutlenku węgla, „Izolacje” No. 3, p. 28-30
• C&DW (2015) Construction and demolition waste management in Poland, September 2015
• Dosho Y. (2007), Development of a sustainable concrete waste recycling system – application of recycled aggregate concrete produced by aggregate replacing method, “Journal of Advanced Concrete Technology” No. 5, p. 27-42
• EC (2008), Directive 2008/98/EC of the European Parliament and of the Council of 19 November 2008 on Waste and repealing certain Directives, European Commission, Brussels, 2008
• EC (2015), Waste Statistics, EUROSTAT/ European Statistics Office, European Commission, September 2015
• Gastaldi D. et al. (2015), An investigation on the recycling of hydrated cement from concrete demolition waste, “Cement and Concrete Composites” No. 61, p. 29–35
• Ismail S. Ramli M. (2013), Engineering properties of treated recycled concrete aggregate (RCA) for structural applications, “Construction and Building materials” No. 44, p. 464-476
• Krzywobłocka-Laurów R. (1998), Badania składu fazowego betonu. Instrukcja ITB 357/98, Warszawa, 1998
• PN-EN 206 (2014), Concrete – Part 1: Specification, performance, production and conformity Schoon J. et al. (2015), Fines extracted from recycled concrete as alternative raw material for Portland cement clinker production, “Cement and Concrete Composites” No. 58, p. 70-80
• Shui Z. et al. (2008), Rehydration reactivity of recycled mortar from concrete waste experienced to thermal treatment, “Construction and Building materials” No. 22, p. 1723-1729
• WRI (2005), Greenhouse Gas Data and International Climate Policy, World Resources Institute, 2005
• Zgłoszenie patentowe P.417362 (2016), Sposób oddzielania stwardniałej zaprawy cementowej od kruszywa grubego i rozdrabniania tej zaprawy oraz urządzenie do stosowania tego sposobu, Autorzy: Bołtryk M., Pawluczuk E., Kalinowska-Wichrowska K., Politechnika Białostocka, 2016

Uwagi

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