摘要：针对当前阻碍泡沫混凝土广泛应用的主要因素,即对泡沫混凝土性能的基本认知不足且技术研究尚不充分,综述泡沫混凝土在混凝土拌合至初凝、硬化过程和使用过程3个阶段中微观结构的形成及劣化机理,介绍泡沫混凝土微观结构与宏观性能之间的理论模型和模型的适用范围,证实泡沫混凝土的微观结构对自重、导热、机械强度、渗透等宏观性能的影响;从胶凝材料、集料、矿物混合材、发泡剂、外加剂、配合比以及材料制备工艺等角度分析影响泡沫混凝土微观结构的因素,探讨微观结构控制的机理和可行性,指出未来的研究方向是在当前研究的基础上对泡沫混凝土的制备条件和工艺参数控制进行进一步改进和探索。

关键词：泡沫混凝土；微观结构；性能

Abstract： Aiming at the main factors hindering extensive use of foam concrete including being lack of insufficient basic concept of properties of foam concrete and technology research, the microstructure transformation and deterioration mechanism of foam concrete during the processes of mixing-to-initial-setting, hardening and application were summarized. The application range of the theoretical model of microstructure and properties of foam concrete were introduced. The effect of microstructure on properties such as self-weight， heat conduction， mechanical strength and infiltration were proved. The factors influencing microstructure of foam concrete were analyzed from the viewpoint of cementitious materials， aggregates， mineral mixtures， additives， mixing ratio and preparation technology. The mechanism and feasibility of microstructure preparation were discussed. The future research emphasis was pointed to be further improving and exploring preparation conditions and process parameters control of foam concrete on the basis of current research. 

Keywords: foam concrete； microstructure； property