Journal ArticleDOI
Physicochemical properties of binder gel in alkali-activated fly ash/slag exposed to high temperatures
TLDR
In this paper, the physicochemical properties of binder gel in alkali-activated fly ash/slag exposed to high temperatures were investigated, and the porosity under high temperatures had an inverse relationship with the strength.About:
This article is published in Cement and Concrete Research.The article was published on 2016-11-01. It has received 140 citations till now. The article focuses on the topics: Crystallization & Mesoporous material.read more
Citations
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Recent progress in low-carbon binders
Caijun Shi,Bo Qu,John L. Provis +2 more
TL;DR: The development of low-carbon binders has been recognized as a means of reducing the carbon footprint of the Portland cement industry, in response to growing global concerns over CO2 emissions from the construction sector as mentioned in this paper.
Journal ArticleDOI
Apply 29Si, 27Al MAS NMR and selective dissolution in identifying the reaction degree of alkali activated slag-fly ash composites
TL;DR: In this paper, the phase composition and reaction degree of alkali activated slag, fly ash and their blends were characterized by using 29 Si, 27 Al MAS NMR and selective dissolution; with special emphasis on the effect of activator modulus and the usage of blended binders.
Journal ArticleDOI
Effect of source materials, additives on the mechanical properties and durability of fly ash and fly ash-slag geopolymer mortar: A review
TL;DR: In this article, the effect of mix proportioning on fresh, hardened and durability properties of fly ash and fly ash-slag geopolymer mortar is discussed. But, the main focus of this paper is on the quality of the mortar.
Journal ArticleDOI
Solidification/stabilization of lead-zinc smelting slag in composite based geopolymer
Ming Xia,Faheem Muhammad,Linghao Zeng,Shan Li,Xiao Huang,Binquan Jiao,Yan-Chyuan Shiau,Dongwei Li +7 more
TL;DR: In this paper, a composite based geopolymer (Pulverized Fuel Ash (PFA) and Blast Furnace Slag (BFS)) was used to solidify lead-zinc smelting slag (LZSS).
Journal ArticleDOI
Microstructural investigation of calcium aluminate cement-based ultra-high performance concrete (UHPC) exposed to high temperatures
TL;DR: In this article, the microstructural and chemical changes of calcium aluminate cement (CAC)-based UHPC exposed to high temperatures were investigated, which led to a significant increase in micro-pores.
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.
Journal ArticleDOI
Compatibility studies between N-A-S-H and C-A-S-H gels. Study in the ternary diagram Na2O–CaO–Al2O3–SiO2–H2O
TL;DR: In this article, the compatibility relationship between C-A-S-H and N-Aluminum-modified calcium silicate hydrate (C-A,S,H) gels is assessed.
Journal ArticleDOI
Modification of phase evolution in alkali-activated blast furnace slag by the incorporation of fly ash
Idawati Ismail,Idawati Ismail,Susan A. Bernal,Susan A. Bernal,John L. Provis,John L. Provis,Rackel San Nicolas,Sinin Hamdan,Jannie S.J. van Deventer +8 more
TL;DR: The microstructural evolution of alkali-activated binders based on blast furnace slag, fly ash and their blends during the first six months of sealed curing is assessed in this article.
Journal ArticleDOI
Comparative performance of geopolymers made with metakaolin and fly ash after exposure to elevated temperatures
TL;DR: In this article, the effect of elevated temperatures on geopolymers manufactured using metakaolin and fly ash of various mixture proportions was investigated. And the results showed that the fly ash-based geopolymer has large numbers of small pores which facilitate the escape of moisture when heated, thus causing minimal damage to the polygonal matrix.
Journal ArticleDOI
A model for the C-A-S-H gel formed in alkali-activated slag cements
TL;DR: In this article, an experimental and computational study has been conducted to define a structural model for the C-A-S-H gel forming in alkali-activated slag (AAS) pastes that would account for the mechanical properties of these materials.
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Effect of elevated temperatures on geopolymer paste, mortar and concrete
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