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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Journal ArticleDOI
The structure of geopolymers – Theoretical studies
TL;DR: In this article, the results of DFT and classical mechanics' calculations and theoretical analysis of geopolymer structure were presented using a bottom-up approach (from small oligomers to clusters with increasing size) for various Si:Al ratio.
Vysoká škola báňská – technická univerzita ostrava
Diplomová Práce,David Staněk,Vysoká škola,ochrany obyvatelstva,Hodnocení komfortu ochranných,oděvů příslušníků,jednotek Po za standardních,při zásahu +7 more
TL;DR: In this paper, the authors present a program that is připraven týmem pracovniků Katedry materialů a technologii pro automobily, Katedrou ekonomiky a managementu v metalurgii.
Journal ArticleDOI
Properties of geopolymer from circulating fluidized bed combustion coal bottom ash
TL;DR: In this article, the effect of air curing at ambient temperature (AC) at 20 °C and 90% RH, dry curing (DC) at 80°C and 40% RH for 20 h.
Journal ArticleDOI
The role of nanomaterials in geopolymer concrete composites: A state-of-the-art review
TL;DR: In this article , the effects of different nanoparticles on the most essential fresh, mechanical, durability, and microstructure characteristics of geopolymer paste, mortar, and concrete composites were reviewed, analyzed, and discussed in detail.
Patent
Chemical admixtures for hydraulic cements
TL;DR: In this paper, a new class of chemical admixtures for hydraulic cement compositions and methods of preparing the same are described, including pastes, mortars, grouts and concretes.
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.