在喷射混凝土中使用固体废弃物是缓解我国砂石资源紧缺和助力“双碳”战略实施的重要举措。本文综述了固体废弃物在喷射混凝土中的应用现状。目前，粉体固体废弃物可以替代水泥作为胶凝材料使用，块状固体废弃物可以代替粗细骨料应用于混凝土中。代替水泥作为胶凝材料的有粉煤灰、矿渣粉、赤泥和脱硫石膏等，代替粗细骨料的有洞渣机制砂、尾矿砂、煤矸石、再生骨料和高钛重矿渣等。固体废弃物用于生产喷射混凝土可满足标准要求，同时还能降低成本，减少环境污染。

The use of solid waste in shotcrete is an important measure to alleviate the shortage of sand and gravel resources in China and to help the implementation of “dual-carbon” strategy. This paper reviews the application of solid waste in shotcrete. Different solid waste can be used as a substitute for cement as a cementitious material and for coarse and fine aggregates as an aggregate in concrete. There are fly ash, slag powder, red mud, and desulfurization gypsum as cementitious materials to replace cement, while there are cavernous slag mechanism sand, tailings sand, coal gangue, recycled aggregates, and high titanium heavy slag to replace coarse and fine aggregates. The use of solid waste in the production of shotcrete can meet the standard requirements, while also reducing costs and environmental pollution.

X705; U454