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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3D printing strong and conductive geo-polymer nanocomposite structures modified by graphene oxide
TL;DR: In this article, an extrusion based 3D printing graphene oxide (GO)/geopolymer (GOGP) nanocomposite was reported for the first time, and the addition of GO in geopolymeric aqueous mixture (alumiosilicate and alkaline-source particles) dramatically changes its rheology properties.
Journal ArticleDOI
Mechanical and thermal properties of fly ash based geopolymers
TL;DR: In this article, an experimental investigation on the thermo-mechanical properties of geopolymers prepared using a class F fly ash, KOH and Na2SiO3 is presented.
Journal ArticleDOI
Effects of nano-silica on the strength development of geopolymer cured at room temperature
TL;DR: In this article, the incorporation of nano-silica in fly ash based geopolymer binders has been investigated in order to understand its effect on the strength and microstructural development.
Journal ArticleDOI
Fly ash based geopolymer thin coatings on metal substrates and its thermal evaluation.
Jadambaa Temuujin,A. Minjigmaa,William D.A. Rickard,Melissa Lee,Iestyn Williams,Arie van Riessen +5 more
TL;DR: Microstructure evolution and thermal properties of the optimised coating formulations show that they have very promising fire resistant characteristics.
Journal ArticleDOI
Fabrication and engineering properties of concretes based on geopolymers/alkali-activated binders - A review
TL;DR: In this paper, a comprehensive review on the fabrication and engineering properties of a variety of geopolymer/alkali-activated concretes is presented, including probable source materials, alkaline activator requirements, curing conditions, compressive strength, elastic performance, tensile strength, flexural strength, fracture performance, bonding strength, high temperature resistance, abrasion resistance, porosity and water absorption, frost resistance, chemical attack resistance, drying shrinkage, and carbonation resistance.
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.