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
More filters
Journal ArticleDOI
Chloride induced corrosion in different fly ash based geopolymer concretes
TL;DR: In this paper, the long term corrosion condition of embedded rebar in fly ash geopolymer concretes containing cast in chlorides (0−5%) subjected to wet-dry cycles, together with specimens exposed to ponding in 3% NaCl were examined.
Journal ArticleDOI
Ambient-cured geopolymer mortars prepared with waste-based sands: Mechanical and durability-related properties and microstructure
TL;DR: In this paper, the properties of geopolymer mortars with industrial by-products and waste-based materials in the construction industry have been evaluated under ambient curing conditions, and the results show that the compressive and tensile strength of the mortars increase with an increase in the amount of industrial byproducts.
Journal ArticleDOI
Low-reactive circulating fluidized bed combustion (CFBC) fly ashes as source material for geopolymer synthesis
TL;DR: The results of this study indicate that, via enhancing the reactivity by alkali fusion and balancing the Na/Al ratio by additional aluminosilicate source, low-reactive CFAs could also be recycled as an alternative source material for geopolymer production.
Journal ArticleDOI
Experimental investigation of using a recycled glass powder-based geopolymer to improve the mechanical behavior of clay soils
TL;DR: In this article, the feasibility of using a geopolymer based on recycled glass powder (RGP) to improve the mechanical behavior of clay soils was investigated, and the results revealed that the UCS and (ef) of specimens that were stabilized using the geopolymers were increased in comparison to the unstabilized specimens.
Journal ArticleDOI
Synthesis and mechanical properties of new fibre-reinforced composites of inorganic polymers with natural wool fibres
TL;DR: In this article, a fiber-reinforced composites of aluminosilicate inorganic polymer (geopolymer) with natural protein-based fibres (carpet and Merino wool) were developed, and their mechanical properties determined.
References
More filters
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.