核磁共振冷冻测孔法是将核磁共振检测技术与吉布斯、托马斯等研究的受限材料的相变理论相结合,用来表征多孔材料孔径分布的新方法.由于样品内不同孔径中液体的相变温度不同,通过NMR可获得样品内液相体积随温度的变化从而间接表征样品的孔径分布.研究表明此方法相比于传统的测孔方法有其独特的优点,应用前景广阔.目前国外对此项技术已经开展了广泛而深入的研究,但在国内的研究才刚刚起步.通过总结外文文献,介绍了该方法的理论基础.实验方法以及研究进展等情况,并简要分析了其在水泥基材料中的应用前景.
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