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This article mainly studies a rapid repair material for concrete defects - magnesium phosphate cement (MPC). By studying the effects of borax and water on the setting time of MPC, it was found that borax has an inhibitory effect on the setting time of MPC, which can effectively slow down the reaction rate. Water has little effect on the setting of MPC. In addition, the influence of borax and water on the compressive strength of MPC was also studied. The research results showed that borax had little effect on the compressive strength of MPC, and excessive water would reduce the compressive strength of MPC.

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Study on Magnesium Phosphate Cement for Rapid Repair of Concrete Defects

  • 会议论文

  • 发表日期：

    2025年

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  • Tianliang Wang,
  • Wenzhao Wang,
  • Ye Yuan,
  • Xiaori Fu,
  • Zheng Che

摘要

This article mainly studies a rapid repair material for concrete defects - magnesium phosphate cement (MPC). By studying the effects of borax and water on the setting time of MPC, it was found that borax has an inhibitory effect on the setting time of MPC, which can effectively slow down the reaction rate. Water has little effect on the setting of MPC. In addition, the influence of borax and water on the compressive strength of MPC was also studied. The research results showed that borax had little effect on the compressive strength of MPC, and excessive water would reduce the compressive strength of MPC.