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Research progress on the water resistance of magnesium phosphate cement-based composites.

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Title: Research progress on the water resistance of magnesium phosphate cement-based composites.
Authors: Feng, Hu1 (AUTHOR), Lu, Shenghao1 (AUTHOR), Guo, Aofei1 (AUTHOR) a0guo003@zzu.edu.cn, Yu, Zhenyun1 (AUTHOR)
Source: Journal of Materials Science. Oct2025, Vol. 60 Issue 38, p17326-17346. 21p.
Subjects: Magnesium phosphate, Hydration, Additives, Engineering, Water repellents
Abstract: Magnesium phosphate cement (MPC), a novel cementitious material characterized by rapid setting and high early strength, shows great promise in the field of rapid infrastructure repair. However, its poor water resistance limits further development and broader application. This paper focuses on the water resistance of MPC by systematically analyzing its hydration mechanism and products and reviews research conducted over the past decade on influencing factors and improvement measures. Studies have shown that in terms of mix proportions, an optimal magnesium oxide to phosphate (M/P) molar ratio of 4:1 to 5:1 and a water-to-cement ratio of approximately 0.16 result in better water resistance. Regarding mineral admixtures, materials such as fly ash, metakaolin, slag, steel slag, sintered sludge ash, and red mud can enhance water resistance by filling pores and participating in hydration reactions. As for chemical admixtures, waterproofing agents, retarders, and inorganic salts can improve water resistance by forming hydrophobic layers, promoting the formation of crystalline products, or filling capillary pores, respectively. In terms of curing conditions, it is crucial to avoid humid environments during the curing stage, and extending the curing period under natural conditions before immersion in water also contributes to improved water resistance. These findings provide innovative insights for enhancing the water resistance of MPC and expanding its potential engineering applications. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 188313756
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Research progress on the water resistance of magnesium phosphate cement-based composites.
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  Data: <searchLink fieldCode="AR" term="%22Feng%2C+Hu%22">Feng, Hu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lu%2C+Shenghao%22">Lu, Shenghao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Aofei%22">Guo, Aofei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a0guo003@zzu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yu%2C+Zhenyun%22">Yu, Zhenyun</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. Oct2025, Vol. 60 Issue 38, p17326-17346. 21p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Magnesium+phosphate%22">Magnesium phosphate</searchLink><br /><searchLink fieldCode="DE" term="%22Hydration%22">Hydration</searchLink><br /><searchLink fieldCode="DE" term="%22Additives%22">Additives</searchLink><br /><searchLink fieldCode="DE" term="%22Engineering%22">Engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Water+repellents%22">Water repellents</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Magnesium phosphate cement (MPC), a novel cementitious material characterized by rapid setting and high early strength, shows great promise in the field of rapid infrastructure repair. However, its poor water resistance limits further development and broader application. This paper focuses on the water resistance of MPC by systematically analyzing its hydration mechanism and products and reviews research conducted over the past decade on influencing factors and improvement measures. Studies have shown that in terms of mix proportions, an optimal magnesium oxide to phosphate (M/P) molar ratio of 4:1 to 5:1 and a water-to-cement ratio of approximately 0.16 result in better water resistance. Regarding mineral admixtures, materials such as fly ash, metakaolin, slag, steel slag, sintered sludge ash, and red mud can enhance water resistance by filling pores and participating in hydration reactions. As for chemical admixtures, waterproofing agents, retarders, and inorganic salts can improve water resistance by forming hydrophobic layers, promoting the formation of crystalline products, or filling capillary pores, respectively. In terms of curing conditions, it is crucial to avoid humid environments during the curing stage, and extending the curing period under natural conditions before immersion in water also contributes to improved water resistance. These findings provide innovative insights for enhancing the water resistance of MPC and expanding its potential engineering applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1007/s10853-025-11462-9
    Languages:
      – Code: eng
        Text: English
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        PageCount: 21
        StartPage: 17326
    Subjects:
      – SubjectFull: Magnesium phosphate
        Type: general
      – SubjectFull: Hydration
        Type: general
      – SubjectFull: Additives
        Type: general
      – SubjectFull: Engineering
        Type: general
      – SubjectFull: Water repellents
        Type: general
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      – TitleFull: Research progress on the water resistance of magnesium phosphate cement-based composites.
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            NameFull: Feng, Hu
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            NameFull: Lu, Shenghao
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            NameFull: Guo, Aofei
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            NameFull: Yu, Zhenyun
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            – D: 08
              M: 10
              Text: Oct2025
              Type: published
              Y: 2025
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              Value: 38
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