Original ResearchPublished 8 October 2026Sustainable valorization of phosphogypsum solid waste as composite filler in asphalt mastic: rheological behavior and construction benefitsLiangchao Li · Baoan Li · Lu Yang · Xingjun Liu · Xinran Gu · Haowen Li · Yixiang Li · Jiufu Yang · Wenju PengFrontiers in Materialsdoi 10.3389/fmats.2026.1957042