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
Advances in alkali-activation of clay minerals
Ahmed Khalifa,Özlem Cizer,Yiannis Pontikes,Andrew Heath,Pascaline Patureau,Susan A. Bernal,Alastair Marsh,Alastair Marsh +7 more
TL;DR: In this article, the authors present an approach for processing and activating 1:1 (kaolinite, halloysite) and 2: 1 (montmorillonite, illite) clay minerals.
Journal ArticleDOI
Utilization of cement kiln dust (CKD) to enhance mine tailings-based geopolymer bricks
Saeed Ahmari,Lianyang Zhang +1 more
TL;DR: In this paper, the feasibility of enhancing the physical and mechanical properties and the durability of copper mine tailings (MT)-based geopolymer bricks with cement kiln dust (CKD) was studied.
Journal ArticleDOI
Processing and Characterization of PET Composites Reinforced With Geopolymer Concrete Waste
Ana Paula dos Santos Pereira,Marcelo Henrique Prado da Silva,Édio Pereira Lima Júnior,Andersan dos Santos Paula,Flávio James Tommasini +4 more
TL;DR: In this paper, poly (ethylene terephthalate)-based composites were produced and characterized using X-ray fluorescence spectroscopy (XRF), crystallinity by differential scanning calorimetry (DSC), thermal stability by TGA, microstructure by field emission gun scanning electron microscopy (FEG-SEM), and mechanical properties were assessed by compression tests.
Book ChapterDOI
An overview of the chemistry of alkali-activated cement-based binders
TL;DR: In this article, the physical-chemical principles governing alkali-activation processes in both high and low CaO aluminosilicate materials are reviewed, including starting material composition, reaction mechanisms, and the nature, composition and structure of the reaction products.
Journal ArticleDOI
Properties of geopolymer with seeded fly ash and rice husk bark ash
TL;DR: In this paper, compressive strength of inorganic polymers (geopolymers) produced of seeded fly ash and rice husk bark ash has been investigated and the results indicate that the finer the particle size of the utilized ashes, the denser the microstructure which confirms the results obtained by the strength tests.
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.