AUTHOR=Su Qing , Tao Zhixiong TITLE=Study on the evolution mechanism of mechanical properties of recycled concrete excited by different alkali content at high temperature JOURNAL=Frontiers in Mechanical Engineering VOLUME=Volume 11 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2025.1573936 DOI=10.3389/fmech.2025.1573936 ISSN=2297-3079