混凝土废浆（Concrete slurry waste， CSW）是混凝土搅拌站中特有的富含硅酸盐类矿物的未硬化废弃物，因成分复杂、高含水、毒害性、腐蚀性等特点，其再生利用一直受到极大的限制。综述了当前对CSW的大宗再生利用研究，包括：再生为水泥砼制品用粗、细骨料、填料、胶材（湿法研磨技术）和外掺剂；作为水泥熟料生产用原料；基于碳化技术和冷粘结造粒技术制备新型砼制品和轻型骨料以及与单、双组分碱激发胶材的复合再生应用。指明了CSW未来高效再生利用的主要研究方向：CSW低能耗预处理技术与活性激发技术；碳化技术；重金属的长期浸出行为和耐久性研究。

Concrete slurry waste, CSW is a unique unhardened construction waste which is rich in silicate minerals generated from concrete ready-mixing plant. However, its recycling has always been greatly restricted owing to its complex composition, high water to solid ratio, hazardous and corrosion. The large-scale recycling methods of CSW are comprehensively reported and commented in this paper, including recycling as aggregates, fillers, cementitious materials (wet grinding technology), additions in concrete and raw materials for cement clinker production; preparation of new type of concrete products and lightweight aggregates by carbonation and cold bonded pelletizing technique; the development in “one or two” part alkali-activated materials (AAMs). The promising research directions of CSW in the future are pointed out as follows: 1. Pre-treatment regeneration technology and active excitation technology with low energy consumption; 2. Carbonation technology; 3. Long term leaching behavior of heavy metals and durability.

国家自然科学基金（51978080）；国家自然科学基金委员会与中国民用航空局联合资助项目（U1833127）；湖南省自然科学基金（2018JJ4016）；湖南省教育厅科学研究重点项目（18A129）