@article{rajendiran_mariappan_sivasubramani_natarajan_2025,  title={Correlation of strength parameters, microstructure, and eco-strength efficiency in lightweight concrete using waste polyurethane foam aggregate},  volume={30},  ISSN={1517-7076},  url={https://doi.org/10.1590/1517-7076-RMAT-2025-0564},  DOI={10.1590/1517-7076-RMAT-2025-0564},  journal={Matéria (Rio de Janeiro)},  publisher={Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro, em cooperação com a Associação Brasileira do Hidrogênio, ABH2},  author={Rajendiran, Roobankumar and Mariappan, Senthilpandian and Sivasubramani, Deepa Nivethika and Natarajan, Shanmuganathan},  year={2025},  pages={e20250564} }