Naslov
Development of sustainable recycled aggregate concrete in Croatia

Autori
Bjegović, Dubravka ; Mikulić, Dunja ; Jelčić Rukavina, Marija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
Tenth International Conference on Recent Advances in Concrete Technology and Sustainability Issues

Mjesto i datum
Sevilla, Španjolska, 14.10.2009. - 16.10.2009

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
concrete; construction and demolition waste; recycled aggregate; sustainable development

Sažetak
With an aim of developing a sustainable structural engineering in Croatia it is necessary to recover and reuse increased amounts of construction and demolition waste (C&D). Depending on its origin and composition, approximately 80% of construction waste, given certain recycling technologies, may be used as an economically valuable resource. But in Croatia, only 5% of waste is recycled. One of the recovery methods is recycling of crushed concrete waste and its reuse as aggregate in new concrete. Characteristics of this recycled concrete aggregate are different in comparison with ordinary concrete and because of that it is necessary to investigate properties of recycled concrete aggregate. Results of the laboratory testing of concrete with different recycling aggregate amounts compared to control concrete with natural aggregate are presented in this paper. In accordance to obtained results, it is recommended to use maximum of 30 % recycled aggregate in concrete mixtures because, up to that amount, properties of concrete regarding the compressive strength, free shrinkage and water permeability would be satisfactory, or very near to the control concrete properties.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti

POVEZANOST RADA