RT Journal Article
T1 Non-bituminous binders formulated with bio-based and recycled materials for energy-efficient roofing applications
A1 Álvarez Barajas, Rodrigo
A1 Cuadri Vega, Antonio Abad
A1 Delgado Sánchez, Clara
A1 Navarro Domínguez, Francisco Javier
A1 Partal López, Pedro
AB Non-bituminous binders have been designed as potential roofing materials with sustainable characteristics. To that end, three bio-based rosin esters (R), a waste cooking oil (O) and a recycled polyethylene from greenhouse agriculture (LDPEr) have been used in their formulations. A comprehensive rheological, microstructural, calorimetric, and technological characterization have been performed on binary (polymer/oil or rosin/oil) and ternary (polymer/rosin/oil) blends, allowing the compatibility among binder compounds to be studied. Additionally, thermal conductivity and solar radiation tests have been conducted on a selected non-bituminous binder and compared with a reference polymer modified bitumen. The formulation composed of 61.0% phenolic-modified rosin, 30.5% oil and 8.5% LDPEr has shown suitable mechanical properties for roofing materials, and has exhibited enhanced energy efficiency derived from its light yellowish to brownish color. Under the experimental radiant flux conditions, surface temperature of the non-bituminous binder was 8 °C lower than that of the black bitumen. Moreover, conduction heat transfer through this roofing material was about 14% lower than that conducted through a bitumen-based membrane with the same thickness. Accordingly, developed binders are expected to behave as reflective building materials aiming to reduce the heat island effects and save energy.
PB Elsevier
SN 0959-6526
YR 2023
FD 2023-02
LK https://hdl.handle.net/10272/22222
UL https://hdl.handle.net/10272/22222
LA eng
NO Álvarez-Barajas, R., Cuadri, A. A., Delgado-Sánchez, C., Navarro, F. J., & Partal, P. (2023). Non-bituminous binders formulated with bio-based and recycled materials for energy-efficient roofing applications. In Journal of Cleaner Production (Vol. 393, p. 136350). Elsevier BV. https://doi.org/10.1016/j.jclepro.2023.136350
NO This work is part of GreenAsphalt project (ref. 802C1800001), cofundedby FEDER European Programme (80%) and Junta de Andalucía(Consejería de Economía, Conocimiento, Empresas y Unversidades/Agencia-IDEA), and has been also co-funded by FEDER/Junta deAndalucía-Consejería de Economía y Conocimiento/Project UHU-1256916. Clara Delgado-S´anchez also acknowledges financial supportfrom Junta de Andalucía through post-doctoral Grant No. DC 01228(PAIDI 2020), co-funded by the EU Fondo Social Europeo (FSE). Fundingfor open access charge: Universidad de Huelva / CBUA.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026