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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Journal ArticleDOI
An overview on the reuse of waste glasses in alkali-activated materials
TL;DR: In this paper, the authors comprehensively review researches on waste glasses reused in AAMs from three aspects: reuse of waste glasses as aggregates, precursors and activators.
Journal ArticleDOI
Geopolymer foams: An overview of recent advancements
TL;DR: Geopolymer foams have emerged as one of the most exciting materials over the past few years due to their remarkable properties, low cost and green synthesis protocol, enabling their use in various high added-value applications.
Journal ArticleDOI
Pore characteristics in one-part mix geopolymers foamed by H2O2: The impact of mix design
Ailar Hajimohammadi,Tuan Ngo,Priyan Mendis,Tuan Nguyen,Alireza Kashani,Jannie S.J. van Deventer +5 more
TL;DR: In this paper, the effect of mix design on both reactions is discussed and correlated with the properties of the resulting geopolymer foams, and the mesoscale-based finite element analysis is performed to create a predictive tool for correlating the pore size distribution with their mechanical properties.
Journal ArticleDOI
Thermally treated clay sediments as geopolymer source material
Claudio Ferone,Barbara Liguori,Ilaria Capasso,Francesco Colangelo,Raffaele Cioffi,Elisa Cappelletto,R. Di Maggio +6 more
Journal ArticleDOI
Geopolymer prepared with high-magnesium nickel slag: Characterization of properties and microstructure
Tao Yang,Xiao Yao,Zuhua Zhang +2 more
TL;DR: In this article, the effects of high-magnesium nickel slag (HMNS) addition on the reaction, mechanical properties and microstructure of fly ash-based geopolymers are studied through isothermal conduction calorimetry (ICC), compressive strength testing, mercury intrusion porosimetry, scanning electron microscopy (SEM), X-ray diffractometry (XRD) and drying shrinkage testing.
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.