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.
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