硅酸盐水泥
偏高岭土
聚合物
硅酸铝
材料科学
熔渣(焊接)
耐久性
磨细高炉矿渣
粉煤灰
水泥
废物管理
冶金
复合材料
工程类
化学
催化作用
生物化学
作者
John L. Provis,Susan A. Bernal
出处
期刊:Annual Review of Materials Research
[Annual Reviews]
日期:2014-07-01
卷期号:44 (1): 299-327
被引量:892
标识
DOI:10.1146/annurev-matsci-070813-113515
摘要
The development of new, sustainable, low-CO 2 construction materials is essential if the global construction industry is to reduce the environmental footprint of its activities, which is incurred particularly through the production of Portland cement. One type of non-Portland cement that is attracting particular attention is based on alkali-aluminosilicate chemistry, including the class of binders that have become known as geopolymers. These materials offer technical properties comparable to those of Portland cement, but with a much lower CO 2 footprint and with the potential for performance advantages over traditional cements in certain niche applications. This review discusses the synthesis of alkali-activated binders from blast furnace slag, calcined clay (metakaolin), and fly ash, including analysis of the chemical reaction mechanisms and binder phase assemblages that control the early-age and hardened properties of these materials, in particular initial setting and long-term durability. Perspectives for future research developments are also explored.
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