谢 剑1，4 ，金凌翼2 ，李 伟1，3
1. 天津大学 a. 建筑工程学院， b. 滨海土木工程结构与安全教育部重点实验室，天津 300354；
2. 中建海龙科技有限公司，广东 深圳 518110；
3. 兰州交通大学 土木工程学院，甘肃 兰州 730070；
4. 北京市既有建筑改造工程技术研究中心（天津分中心），天津 300354
谢剑，金凌翼，李伟. 磷酸镁水泥基材料改性研究进展［J］. 中国粉体技术，2026，32（1）：1-11.
XIE Jian， JIN Lingyi， LI Wei. Research progress on modification of magnesium phosphate cement-based materials［J］. China Powder Science and Technology，2026，32（1）：1−11.
DOI：10.13732/j.issn.1008-5548.2026.01.011
收稿日期：2024-11-25，修回日期：2025-10-20，上线日期：2025-11-21。
基金项目：国家自然科学基金项目，编号：52068043。
第一作者：谢剑（1974—），男，教授，博士，博士生导师，研究方向为混凝土结构基本理论和加固技术研究与应用。E-mail： xiejian@tju.edu. cn。
摘要：【目的】为了提升磷酸镁水泥（magnesium phosphate cement， MPC）的韧性，解决 MPC凝结过快、脆性破坏等不足，进一步提升MPC强度，研究掺加不同矿物掺合料和高性能纤维对MPC进行改性的效果，以期在工程应用中结合实际情况选择最佳改性方式。【研究现状】分别介绍掺加粉煤灰、偏高岭土、工业废渣等矿物掺合料对MPC工作性能、力学性能的影响规律，概括掺加钢纤维、玻璃纤维、玄武岩纤维等纤维对MPC力学性能的影响规律，基于影响规律给出改性建议。【结论与展望】提出掺加矿物掺合料能够明显优化MPC的工作性能和基本力学性能；掺加纤维主要提升MPC的韧性与抗裂能力，改性效果与纤维自身种类、长度等因素密切相关，对MPC的抗折强度提升明显，但对于MPC抗压强度的提升幅度较小。认为未来应不断完善MPC制备工艺、性能标准等的规范化与统一化，同时探索多种矿物掺合料以及多种纤维共同交叉作用对MPC性能的影响，建立综合性能更强、更稳定、更标准的磷酸镁水泥基材料的制备方法与行业普遍认可的相关指导规程。
Significance Magnesium phosphate cement (MPC) is an advanced cementitious material renowned for its ceramic-like properties, making it a promising candidate for structural repair and reinforcement applications. Its rapid hardening characteristics and early-age strength development allow for efficient construction in time-sensitive projects, while its exceptional dimensional stability ensures long-term structural integrity. Despite these advantages, practical challenges such as excessively short setting times and inherent brittleness have hindered its widespread adoption. To overcome these limitations, researchers have focused on modifying MPC through the strategic incorporation of mineral admixtures and high-performance fibers. These modifications aim to optimize the material’s fresh-state workability, enhance its mechanical performance such as flexural and compressive strength, and improve its fracture toughness, ultimately transforming MPC into a more versatile and durable construction material suitable for diverse engineering scenarios.
Progress The modification of MPC has been extensively studied through the integration of various mineral admixtures and fiber reinforcements. Mineral admixtures such as fly ash (FA)， metakaolin (MK), and industrial waste slag play pivotal roles in refining the material’s microstructure and enhancing its performance. For instance, FA acts as a micro-aggregate that fills the voids between MPC particles, thereby improving paste fluidity, reducing hydration heat, and mitigating the risk of thermal cracking. Its pozzolanic reactivity further contributes to long-term strength development. MK, a highly reactive aluminosilicate, accelerates the formation of stable hydration products, balancing early strength development with controllable setting times. Industrial waste slag, on the other hand, reduces production costs and promotes sustainable construction practices.
Conclusions and Prospects The incorporation of mineral admixtures and fibers has profoundly influenced MPC performance, though their effects differ in scope. Mineral admixtures primarily enhance fresh-state properties, such as extending setting time, while refining the microstructure to boost mechanical strength and durability. Fibers, conversely, contribute mainly to toughening mechanisms, elevating energy absorption capacity compared to plain MPC, even though they have limited influence on compressive strength.
Keywords：magnesium phosphate cement; mineral additive; fiber; modification
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