大宗固体废渣制备地质聚合物及其性能和应用研究进展

Progress in the Preparation, Physical Properties and Applications of Geopolymers From Bulk Solid Wastes

固体废渣是指人类在生产和生活活动中丢弃的固体和泥状物质,其本身也是一种固体资源。大宗固体废渣的年产量和储存量十分巨大,如果不合理处置和利用,会造成资源浪费,同时也会对人类和社会环境产生危害。固体废渣的资源化利用是促使社会经济和环境可持续发展的重要课题。许多大宗固体废渣中因含有丰富的铝硅酸盐,使其为制备新型绿色建筑材料提供了可能。本文综述了大宗固体废渣(粉煤灰、冶金渣、矿渣、建筑废渣)通过碱激活制备地质聚合物的技术可行性以及研究进展,并概述其应用领域。

Solid waste refers to the solid and muddy substances discarded by human beings in production and living activities.It is also a solid resource itself,with huge annual output and storage.The unreasonable disposal and utilization will not only cause waste of resources,but also be harmful to human and social environment.Therefore,the utilization of solid waste residues is an important issue for the sustainable development of economy and environment.Bulk solid wastes are usually rich in aluminosilicates,which could be used to make new green building materials.This review was aimed to summarize the technical feasibility and research progress in the preparation of geopolymers from bulk solid wastes(including fly ash,metallurgical slag,slag and construction waste)by using the alkali activation method.The potential application fields of geopolymer materials are also outlined.