{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T17:25:57Z","timestamp":1792517157560,"version":"4.5.0"},"reference-count":33,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2025,6,15]],"date-time":"2025-06-15T00:00:00Z","timestamp":1749945600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Guangdong Basic and Applied Basic Research Foundation","award":["2022A1515010087"],"award-info":[{"award-number":["2022A1515010087"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This study investigates the evolution of the macro- and micro-scale properties of foamed concrete under different saline environments, including sulfate, chloride, and composite salt conditions. The research focuses on the changes in compressive strength, pore structure, and hydration products of the material. Through full-immersion tests and compressive strength measurements, combined with microstructural characterization techniques such as mercury intrusion porosimetry (MIP) and thermogravimetric analysis (TG), the deterioration mechanisms of foamed concrete under salt attack are systematically explored. The results indicate that Sulfate ions exhibit the most aggressive erosion effect, and the presence of chloride ions can produce a \u201cpassivation\u201d effect which partially mitigates the damage caused by sulfate ions. Moreover, increasing the material density and incorporation of mineral admixtures contributes to pore structure refinement, significantly enhancing resistance to salt attack. These findings provide a theoretical basis for the practical application of foamed concrete under a complex salt erosion environment.<\/jats:p>","DOI":"10.3390\/ma18122810","type":"journal-article","created":{"date-parts":[[2025,6,16]],"date-time":"2025-06-16T05:28:33Z","timestamp":1750051713000},"page":"2810","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Mechanical and Pore Properties of Foam Concrete Under Salt Erosion Environment"],"prefix":"10.3390","volume":"18","author":[{"given":"Weihong","family":"Huang","sequence":"first","affiliation":[{"name":"School of Civil Engineering, Sun Yat-Sen University, Zhuhai 519082, China"},{"name":"Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China"},{"name":"Zhuhai Dahengqin New Urban Center Development Co., Ltd., Zhuhai 519000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiankun","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Sun Yat-Sen University, Zhuhai 519082, China"},{"name":"Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qinyuan","family":"Shi","sequence":"additional","affiliation":[{"name":"Zhuhai Dahengqin New Urban Center Development Co., Ltd., Zhuhai 519000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiwei","family":"Niu","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Sun Yat-Sen University, Zhuhai 519082, China"},{"name":"Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519082, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,6,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Gw\u00f3\u017ad\u017a-Laso\u0144, M., Brachaczek, W., Kadela, M., and Kukie\u0142ka, A. (2025). Physical Properties of Foamed Concrete Based on Plaster Mortar with Polystyrene Granulate and Synthetic Foaming Agent. Materials, 18.","DOI":"10.20944\/preprints202502.2319.v1"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Abdellatief, M., Mortagi, M., Hamouda, H., Skrzypkowski, K., Zag\u00f3rski, K., and Zag\u00f3rska, A. (2025). Influence of Silicate Modulus and Eggshell Powder on the Expansion, Mechanical Properties, and Thermal Conductivity of Lightweight Geopolymer Foam Concrete. Materials, 18.","DOI":"10.3390\/ma18092088"},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Decky, M., Hodasova, K., Papanova, Z., and Remisova, E. (2022). Sustainable Adaptive Cycle Pavements Using Composite Foam Concrete at High Altitudes in Central Europe. Sustainability, 14.","DOI":"10.3390\/su14159034"},{"key":"ref_4","first-page":"e03476","article-title":"Performance and mechanism analysis of natural fiber-reinforced foamed concrete","volume":"21","author":"Wang","year":"2024","journal-title":"Case. Stud. Constr. Mater."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"136046","DOI":"10.1016\/j.conbuildmat.2024.136046","article-title":"Cementitous material based stabilization of soft soils by stabilizer: Feasibility and durabiliy assessment","volume":"425","author":"Niu","year":"2024","journal-title":"Constr. Build. Mater."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"1152","DOI":"10.1002\/suco.202200142","article-title":"Basalt fiber reinforced foam concrete with marble waste and calcium aluminate cement","volume":"24","author":"Bayraktar","year":"2023","journal-title":"Struct. Concr."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Mydin, M., Nawi, M., Omar, R., Dulaimi, A., Najm, H.M., Mahmood, S., and Sabri, M. (2023). Mechanical, durability and thermal properties of foamed concrete reinforced with synthetic twisted bundle macro-fibers. Front. Mater., 10.","DOI":"10.3389\/fmats.2023.1158675"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"132141","DOI":"10.1016\/j.conbuildmat.2023.132141","article-title":"Compressive strength, pore structure, and hydration products of slag foam concrete under sulfate and chloride environment","volume":"394","author":"Chen","year":"2023","journal-title":"Constr. Build. Mater."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Zhang, Z., Zhang, Y.G., Ye, G.B., Zhang, S.Y., Shen, H.H., and Chen, Y.G. (2023). Strength Degradation of Foamed Lightweight Soil Due to Chemical Erosion and Wet-Dry Cycle and Its Empirical Model. Materials, 16.","DOI":"10.3390\/ma16196505"},{"key":"ref_10","first-page":"e04050","article-title":"Microstructural evolution and degradation mechanisms of tricalcium silicate and tricalcium aluminate composite pastes under sulfate exposure","volume":"21","author":"Wang","year":"2024","journal-title":"Case Stud. Constr. Mat."},{"key":"ref_11","unstructured":"Qiu, T., Wang, C., Ziotopoulou, K., Deng, L., and Wang, X. (2024). Strength degradation of foamed cement paste under sulfate attack. GEO Shanghai 2024 International Conference, Volume 5, Proceedings of the 5th GeoShanghai International Conference, Shanghai, China, 26\u201329 May 2024, Institute of Physics Publishing."},{"key":"ref_12","unstructured":"Wang, S., Huang, R., Azzam, R., and Marinos, V.P. (2024). Dynamic Strength Degradation Prediction Research of Foamed Lightweight Soil Under Chemical Erosion and Wet-Dry Cycle. Engineering Geology for a Habitable Earth, Volume 3, Iaeg Xiv Congress 2023, Proceedings of the 14th Congress of the International-Association-for-Engineering-Geology-and-the-Environment (IAEG), Chengdu, China, 21\u201327 September 2023, Springer."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1680\/adcr.2005.17.2.47","article-title":"Effect of magnesium and sulphate ions on the sulphate resistance of blended cements in low- and medium-strength concretes","volume":"17","author":"Vedalakshmi","year":"2005","journal-title":"Adv. Cem. Res."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"130011","DOI":"10.1016\/j.conbuildmat.2022.130011","article-title":"Long-term performance and microstructural characteristics of cement mortars containing nano-SiO2 exposed to sodium sulfate attack","volume":"364","author":"Huang","year":"2023","journal-title":"Constr. Build. Mater."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Chen, L., Zhao, G., and Li, Y. (2025). Research on the Influence of Recycled Fine Powder on Chloride Ion Erosion of Concrete in Different Chloride Salt Environments. Materials, 18.","DOI":"10.3390\/ma18092018"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"530","DOI":"10.4028\/www.scientific.net\/AMR.177.530","article-title":"Pore Structure and Microstructure of Foam Concrete","volume":"177","author":"Yu","year":"2010","journal-title":"Adv. Mater. Res."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"107005","DOI":"10.1016\/j.cemconres.2022.107005","article-title":"Study of triethanolamine on regulating early strength of fly ash-based chemically foamed geopolymer","volume":"162","author":"Feng","year":"2022","journal-title":"Cem. Concr. Res"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"2559","DOI":"10.1016\/j.conbuildmat.2009.02.028","article-title":"Study on the microstructure of thin-layer facade plasters of thermal insulating system during artificial weathering","volume":"23","author":"Bochen","year":"2009","journal-title":"Constr. Build. Mater."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"189","DOI":"10.1016\/j.conbuildmat.2014.07.041","article-title":"New synthesis method for the production of coal fly ash-based foamed geopolymers","volume":"75","author":"Birch","year":"2015","journal-title":"Constr. Build. Mater."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Chen, X., Shi, D., Zhang, J., and Cheng, X. (2021). Experimental Investigation of the Residual Physical and Mechanical Properties of Foamed Concrete Exposed to High Temperatures. J. Mater. Civ. Eng., 33.","DOI":"10.1061\/(ASCE)MT.1943-5533.0003779"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"123374","DOI":"10.1016\/j.conbuildmat.2021.123374","article-title":"Effect of waste marble powder and rice husk ash on the microstructural, physico-mechanical and transport properties of foam concretes exposed to high temperatures and freeze\u2013thaw cycles","volume":"291","author":"Gencel","year":"2021","journal-title":"Constr. Build. Mater."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"135226","DOI":"10.1016\/j.conbuildmat.2024.135226","article-title":"Optimization of coal-based solid waste ceramsite foam concrete mix proportions and performance study","volume":"416","author":"Han","year":"2024","journal-title":"Constr. Build. Mater."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"101611","DOI":"10.1016\/j.scp.2024.101611","article-title":"Safety and environmental protection application of high performance solid waste unburned ceramsite and its lightweight high strength concrete","volume":"40","author":"Tang","year":"2024","journal-title":"Sustain. Chem. Pharm."},{"key":"ref_24","unstructured":"(2023). Common Portland Cement (Standard No. GB 175-2023)."},{"key":"ref_25","unstructured":"(2017). Ground Granulated Blast Furnace Slag Used for Cement, Mortar and Concrete (Standard No. GB\/T 18046-2017)."},{"key":"ref_26","unstructured":"(2014). Technical Specification for Application of Foamed Concrete (Standard No. JGJ\/T 341-2014)."},{"key":"ref_27","unstructured":"(2012). Technical Specification for Foamed Mixture Lightweight Soil Filling Engineering (Standard No. CJJ\/T 177-2012)."},{"key":"ref_28","unstructured":"(2011). Foamed Concrete (Standard No. JG\/T 266-2011)."},{"key":"ref_29","unstructured":"(2006). Sulfate Corrosion-Resistance Admixtures for Concrete (Standard No. JC\/T1011-2006)."},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Dhouib, M., Conciatori, D., and Sorelli, L. (2019). Optical Fiber Chloride Sensor for Health Monitoring of Structures in Cold Regions. Cold Regions Engineering 2019, American Society of Civil Engineers.","DOI":"10.1061\/9780784482599.045"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"389","DOI":"10.1111\/mice.12500","article-title":"Concrete bridge surface damage detection using a single-stage detector","volume":"35","author":"Zhang","year":"2019","journal-title":"Comput.-Aided Civ. Infrastruct. Eng."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1111\/mice.12263","article-title":"Deep Learning-Based Crack Damage Detection Using Convolutional Neural Networks","volume":"32","author":"Cha","year":"2017","journal-title":"Comput.-Aided Civ. Infrastruct. Eng."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1061\/(ASCE)CP.1943-5487.0000073","article-title":"Characterization of Laser Scanners and Algorithms for Detecting Flatness Defects on Concrete Surfaces","volume":"25","author":"Tang","year":"2011","journal-title":"J. Comput. Civ. Eng."}],"container-title":["Materials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1996-1944\/18\/12\/2810\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T17:52:25Z","timestamp":1760032345000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1996-1944\/18\/12\/2810"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,6,15]]},"references-count":33,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2025,6]]}},"alternative-id":["ma18122810"],"URL":"https:\/\/doi.org\/10.3390\/ma18122810","relation":{},"ISSN":["1996-1944"],"issn-type":[{"value":"1996-1944","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,6,15]]}}}