RT Journal Article
T1 Construction and demolition waste as recycled aggregate for environmentally friendly concrete paving
A1 Contreras Llanes, Manuel
A1 Bolívar Raya, Juan Pedro
A1 Gázquez González, Manuel Jesús
A1 Romero, Maximina
AB Recycled aggregates (RA) from construction and demolition waste (CDW) instead of natural aggregates (NA) were analysed in the manufacture of new eco-friendly concrete. Fine (FRA) and coarse (CRA) recycled aggregates were used in different percentages as substitutes of natural sand and gravel, respectively. The results revealed that the use of RA in percentages of up to 50wt.%is feasible. Additionally, RA were used to produce paving blocks in accordancewith industrial requirements. Thus, values of water absorption lesser than 6.0%and tensile strength upper than 3.6MPa were obtained, which are similar to those of a reference sample and within the limit values established by the regulations. These results were achieved by reducing the incorporation of cement, thereby saving production costs and minimizing environmental impact.
PB Springer
SN 0944-1344
SN 1614-7499 (electrónico)
YR 2021
FD 2021-09-10
LK http://hdl.handle.net/10272/20270
UL http://hdl.handle.net/10272/20270
LA eng
NO Contreras Llanes, M., Romero Pérez, M., Gázquez González, M. J., & Bolívar Raya, J. P. (2021). Construction and demolition waste as recycled aggregate for environmentally friendly concrete paving. In Environmental Science and Pollution Research. Springer Science and Business Media LLC. https://doi.org/10.1007/s11356-021-15849-4
NO Funding for open access charge: Universidad de Huelva / CBUA
NO Publisher’s versionOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This research has been partially supported by the Centre for the Development of Industrial Technology (CDTI) to the Spanish Ministry of Economy, Industry and Competitiveness (MINECO), by the project “Eco-efficient concrete urban paving from mixed recycled aggregates obtained from CDW” (Ref.: IDI-20180931). This research has been partially supported by RENSMA (ResearchCentre for Natural Resources, Health and Environment), University of Huelva, Spain.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026