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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Geopolymers Cured at Ambient Temperatures
Author(s): Daniela Hesselbarth, Thomas Moser, and Juerg Sturzenegger
Publication: Special Publication
Appears on pages(s): 44.1-44.14
Keywords: geopolymer, supplement materials, water glass, molar ratio, workability, performance characteristics
Abstract:Cement production is an energy-intensive process, responsible for a significant amount of the world’s carbon dioxide emissions. Over the last years, geopolymers have been often promoted as an ecologically friendly alternative with low CO2 footprint. The presented work proposes curing of geopolymers at ambient temperature for application as construction materials. Different aluminosilicates like fly ash, metakaolin, slag and combinations thereof are evaluated as binders. Furthermore, the influence of alkali silicate activator (water glass), with respect to type and molar ratio, on the resulting geopolymer properties is investigated. This paper discusses characteristics of ambient temperature cured geopolymers, such as workability, mechanical, and physical properties. The achieved mechanical properties represent medium performance as well as high performance.
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