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
Citations
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Comparative study on synthesis and properties of geopolymer fine aggregate from fly ashes
TL;DR: In this article, an attempt has been made to utilise waste coal ash (class C and class F fly ash) to produce artificial fine aggregate by using geopolymerization reactions.
Journal ArticleDOI
Functionalized geopolymer foams for cesium removal from liquid nuclear waste
TL;DR: In this article, the capacity of GF and FGF to remove selectively cesium from the solution was investigated in deionized water, fresh water and fresh water with excess of sodium.
Journal ArticleDOI
Studying the effect of thermal and acid exposure on alkali-activated slag geopolymer
TL;DR: In this article, a study on thermal stability as well as acid resistance of geopolymer materials prepared from ground granulated blast furnace slag, air-cooled slag (ACS), silica fume (SF), and cement kiln dust (CKD) using 6% of equal mix from alkaline sodium hydroxide and sodium silicate activators.
Journal ArticleDOI
Structural and dielectric comparative studies of geopolymers prepared with metakaolin and Tunisian natural clay
TL;DR: In this paper, the structural and dielectric properties of calcined Tunisian natural clay and metakaolin clays were studied. And a comparative study between two geopolymers made of metakaol and the calcined natural clay was realized.
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.