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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Ultra-high performance concrete targets against high velocity projectile impact – a-state-of-the-art review
TL;DR: In this paper, a comprehensive review of the research advances in thick ultra-high performance concrete targets to resist high velocity projectile impact (HVPI) for normal incidence is presented, which includes fiber reinforcement, high strength coarse aggregate, alternative binder system as well as structural reinforcement and designs.
Journal ArticleDOI
Effect of thermal treatment on reactivity and mechanical properties of alkali activated shale–slag binder
David Rieger,Tomáš Kovářík,Jan Říha,Rostislav Medlín,Pavel Novotný,Petr Bělský,Jaroslav Kadlec,Pavel Holba +7 more
TL;DR: In this paper, the properties of calcined shale-slag as an alternative alkali-activated constructional binder hardened by geopolymerization reaction with sodium silicate solution are investigated.
Journal ArticleDOI
Ultra-high performance concrete targets against high velocity projectile impact – a-state-of-the-art review
TL;DR: A comprehensive review of the research advances in thick ultra-high performance concrete (UHPC) targets to resist HVPI for projectiles at normal incidence is presented in this article .
Journal ArticleDOI
Long-term durability properties of alkali-activated binders containing slag, fly ash, palm oil fuel ash and rice husk ash
TL;DR: In this article, the authors investigated the chloride ion penetration, carbonation, corrosion resistance, and drying shrinkage of alkali-activated binders (AABs) that include: (i) AAB-1 being produced from slag, palm oil fuel ash, and rice husk ash, both being activated by 2.5 m sodium hydroxide solution.
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.