Synergistic effects of surface modifier and nanomaterial on eco-friendly UHPC containing crushed tunnel waste as manufactured sand—Towards cleaner production and circular resource utilization - Rui Ma; Yufeng Song; Hongwei Xie; Xiaoqian Qian; Yulin Zhan; Ruizhe Si; Shaoqin Ruan (Journal of Cleaner Production, 2026)