1 Technical University of Cluj-Napoca, Faculty of Engineering, Department of Engineering of Mineral Resources, Materials and Environment, 62A Victor Babeş Street, Baia Mare City, Maramureş County, Romania
2 Technical University of Cluj-Napoca, Civil Engineering Faculty, Department of Terrestrial Measurements and Surveying, 15 C-tin Daicoviciu Street, , 400020 Cluj-Napoca, Romania
The recycling issues related to the construction and demolition (C&D) wastes in the sustainable development and the circular economy context represent a continuous challenge for researchers. This paper reveals the possibility to recycle the hardened mortar recovered from C&D wastes. Thus, the recovered hardened mortar with grains size less than 16 mm was used in the concrete structure. The compression resistance of the final concrete was determined using a Heckert 3000 KN testing machine and the results showed a better compressive strength for the samples with C&D waste content than the standard sample of about 1.19 times. This is a good premise for improving the researches related to C&D waste usage in concrete production.
Bravo, M., de Brito, J., Pontes, J., Evangelista, L., 2015. Mechanical performance of concrete made with aggregates from construction and demolition waste recycling plants, Journal of Cleaner Production, (99), pp. 59-74
Cojocaru, R., Andrei, R., Muscalu, M., Ţăranu, N., Budescu, M., Lungu, I., 2013. The Behaviour of Cement Concrete Made With Recycled Materials for Airport Rigid Pavements, Romanian Journal of Materials, 43 (4), pp. 363-372.
Corbu, Ofelia, Puskás, A., Szilágyi, Henriette, Baeră, Cornelia, 2014. C16/20 concrete strength class design with recycled aggregates, Journal of Applied Engineering Sciences, 4 (17), pp. 13-19
Directive 2008/98/EC of the European Parliament and of the Council of 19 November 2008 on waste and repealing certain Directives, Official Journal of the European, L 312/3
Ledesma, E.F., Jiménez, J.R., Fernández, J.M., Galvín, A.P., Agrela, F., Barbudo, A., 2014. Properties of masonry mortars manufactured with fine recycled concrete aggregates, Construction and Building Materials, 71, pp. 289-298.
Leopold, D., Goga, M., Cupşa, A., Meissner, R., Larsen, T., 2011, Ghid privind gestionarea deşeurilor din construcţii şi demolări (Guide on management of construction and demolition wastes) Agenţia Regională pentru Protecţia Mediului Sibiu, Asociaţia Autorităţilor Locale şi Regionale din Norvegia, Casa de Presă şi Editură Tribuna, pp. 40-45
Martínez, I., Etxeberria, M., Pavón, E., Díaz, N., 2013. A comparative analysis of the properties of recycled and natural aggregate in masonry mortars, Construction and Building Materials, 49, 384–392.
NE 012 –2009: Normativ pentru producerea betonului şi executarea lucrărilor de construcţii din beton, beton armat şi beton precomprimat (Standard for the production of concrete and a construction of concrete, reinforced and prestressed concrete)
Rodrigues, F., Carvalho, M.T., Evangelista, L., de Brito, J., 2014. Physical-chemical and mineralogical characterization of fine aggregates from construction and demolition waste recycling plants, Journal of Cleaner Production, 52, 438-445
SR EN 206:2014 Beton, specificatie, performanta, productie si conformitate (Concrete, specification, performance, production and conformity)
SR EN 197-1:2011 Ciment Partea 1: Compoziţie, specificaţii şi criterii de conformitate ale cimenturilor uzuale (Cement - Part 1: Composition, specifications and conformity criteria for common cements)
SR EN 12390-1,2,3: 2005: Incercări pe beton întarit (Testing hardened concrete)
Wagih, A.M., El-Karmoty, H.Z., Ebid, M., Okba, S:H., 2013. Recycled construction and demolition concrete waste as aggregate for structural concrete, Housing and Building National Research Center Journal, 9, 193-200.