Journal ArticleDOI
Geopolymer technology: the current state of the art
Peter Duxson,Ana Fernández-Jiménez,John L. Provis,Grant C. Lukey,Ángel Palomo,J.S.J. van Deventer +5 more
TLDR
A brief history and review of geopolymer technology is presented with the aim of introducing the technology and the vast categories of materials that may be synthesized by alkali activation of aluminosilicates as mentioned in this paper.Abstract:
A brief history and review of geopolymer technology is presented with the aim of introducing the technology and the vast categories of materials that may be synthesized by alkali-activation of aluminosilicates. The fundamental chemical and structural characteristics of geopolymers derived from metakaolin, fly ash and slag are explored in terms of the effects of raw material selection on the properties of geopolymer composites. It is shown that the raw materials and processing conditions are critical in determining the setting behavior, workability and chemical and physical properties of geopolymeric products. The structural and chemical characteristics that are common to all geopolymeric materials are presented, as well as those that are determined by the specific interactions occurring in different systems, providing the ability for tailored design of geopolymers to specific applications in terms of both technical and commercial requirements.read more
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Journal ArticleDOI
A review on alkaline activation: new analytical perspectives
Ángel Palomo,Krivenko Pavel,Inés García-Lodeiro,Kavalerova Elena S,Olga Maltseva,Ana Fernández-Jiménez +5 more
TL;DR: For many years now the idea of including alkalis in a Portland cement matrix has been regarded as a daft or inexcusably erroneous proposition: despite its absurdity, that opinion has been widely accepted as a basic premise by the scientific and technical community working in the area of the chemistry of cement as discussed by the authors.
Journal ArticleDOI
Chemical Research and Climate Change as Drivers in the Commercial Adoption of Alkali Activated Materials
TL;DR: In this paper, the technical and commercial factors driving the growing commercial adoption of geopolymer technology, and explains that an understanding of the chemistry and mechanisms of polymeric synthesis is pivotal for the optimal mix design of green concretes in industry.
Journal ArticleDOI
Environmental impacts and decarbonization strategies in the cement and concrete industries
Guillaume Habert,Sabbie A. Miller,Vanderley Moacyr John,John L. Provis,Aurélie Favier,Aurélie Favier,Arpad Horvath,Karen Scrivener +7 more
TL;DR: In this article, a review of the available solutions that can be implemented within the next decade and beyond to reduce greenhouse gas emissions from cement and concrete production is presented, which reveals credible pathways for sustainable concrete use that balance societal needs, environmental requirements and technical feasibility.
Journal ArticleDOI
Efflorescence control in geopolymer binders based on natural pozzolan
TL;DR: In this paper, a pumice-type natural pozzolanic material from Taftan, Iran was used to reduce efflorescence in a geopolymer binder.
Journal ArticleDOI
Structure and properties of clay-based geopolymer cements: A review
TL;DR: In this article, the chemistry and structure of geopolymers, reaction mechanism and prime materials involved in geopolymer formation are discussed, and the characterization of geo-mers in terms of microstructural, crystallographic and functional groups is elucidated.
References
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Journal ArticleDOI
Geopolymers : inorganic polymeric new materials
TL;DR: In the last few years, technological progress has been made in the development of new materials such as "geopolymers" and new techniques, such as ''sol-gel'' as mentioned in this paper, opening up new applications and procedures and transforming ideas that have been taken for granted in inorganic chemistry.
Book
High-resolution solid-state NMR of silicates and zeolites
Günter Engelhardt,Dieter Michel +1 more
TL;DR: High-Resolution NMR of Solids and Adsorbed Molecules as mentioned in this paper is a well-known technique for high-resolution NMR for solids and adsorbed molecules.
Journal ArticleDOI
Industrially interesting approaches to “low-CO2” cements ☆
TL;DR: In this paper, the authors discuss the practicality of replacing portland cements with alternative hydraulic cements that could result in lower total CO 2 emissions per unit volume of concrete of equivalent performance.
Journal ArticleDOI
The geopolymerisation of alumino-silicate minerals
Hua Xu,J.S.J. van Deventer +1 more
TL;DR: In this paper, the effect of mineral properties on the compressive strength of the synthesized geopolymer was investigated, and it was shown that a wide range of natural Al-Si minerals could serve as potential source materials for the synthesis of geopolymers.