{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,7]],"date-time":"2026-01-07T05:57:10Z","timestamp":1767765430265,"version":"3.48.0"},"reference-count":33,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T00:00:00Z","timestamp":1767571200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["52378265"],"award-info":[{"award-number":["52378265"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"name":"\u201cJiangsu Higher Education \u2018Youth and Blue Project\u2019 Funding\u201d and the Natural Science Foundation of the Jiangsu Higher Education Institutions of China","award":["25KJD560007"],"award-info":[{"award-number":["25KJD560007"]}]},{"name":"Jiangming Yang and Tao Li"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>To study the sulfate corrosion behavior of potassium magnesium phosphate cement (PMPC) paste, the sulfate content, strength, and length of PMPC specimens were measured at different corrosion ages under 5% Na2SO4 solution soaking conditions, and the phase composition and microstructure were analyzed. The conclusion is as follows: In PMPC specimens subjected to one-dimensional SO42\u2212 corrosion, the relation between the diffusion depth of SO42\u2212 (h) and the SO42\u2212 concentration (c (h, t)) can be referred by a polynomial very well. The sulfate diffusion coefficient (D) of PMPC specimens was one order of magnitude lower than Portland cement concrete (on the order of 10\u22127 mm2\/s). The surface SO42\u2212 concentration c (0, t), the SO42\u2212 computed corrosion depth h00, and D of FM2 specimen containing 20% fly ash (FA) were all less than those of the FM0 specimen (reference). At 360-day immersion ages, the c (0, 360 d) and h00 in FM2 were obviously smaller than those in FM0, and the D of FM2 was 64.2% of FM0. The strengths of FM2 specimens soaked for 2 days (the benchmark strength) were greater than those of FM0 specimens. At 360-day immersion ages, the residual flexural\/compressive strength ratios (360-day strength\/benchmark strength) of FM0 and FM2 specimens were all larger than 95%. The volume linear expansion rates (Sn) of PMPC specimens continued to increase with the immersion age, and Sn of FM2 specimen was only 49.5% of that of the FM0 specimen at 360-day immersion ages. The results provide an experimental basis for the application of PMPC-based materials.<\/jats:p>","DOI":"10.3390\/ma19010202","type":"journal-article","created":{"date-parts":[[2026,1,5]],"date-time":"2026-01-05T12:38:56Z","timestamp":1767616736000},"page":"202","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Study on the Transport Law and Corrosion Behavior of Sulfate Ions of a Solution Soaking FA-PMPC Paste"],"prefix":"10.3390","volume":"19","author":[{"given":"Yuying","family":"Hou","sequence":"first","affiliation":[{"name":"School of Civil Engineering, SanJiang University, Nanjing 210012, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiang","family":"Xu","sequence":"additional","affiliation":[{"name":"China Construction Third Engineering Bureau Co., Ltd., Wuhan 430205, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tao","family":"Li","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, SanJiang University, Nanjing 210012, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sha","family":"Sa","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, SanJiang University, Nanjing 210012, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yante","family":"Mao","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, SanJiang University, Nanjing 210012, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caiqiang","family":"Xiong","sequence":"additional","affiliation":[{"name":"College of Civil Engineering, Yancheng Institute of Technology, Yancheng 224051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiamin","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, SanJiang University, Nanjing 210012, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kan","family":"Xu","sequence":"additional","affiliation":[{"name":"China Construction Third Engineering Bureau Co., Ltd., Wuhan 430205, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianming","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Civil Engineering, Yancheng Institute of Technology, Yancheng 224051, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,5]]},"reference":[{"key":"ref_1","first-page":"1047","article-title":"Numerical simulation of sulfate attack in concrete","volume":"26","author":"Jiang","year":"2023","journal-title":"J. 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