Journal ArticleDOI
Advances in alternative cementitious binders
TLDR
In this paper, four promising alternative binders available as alternatives to Portland cement are discussed, namely calcium aluminate cement, calcium sulfoaluminate cements, alkali-activated binders, and supersulfated cements.About:
This article is published in Cement and Concrete Research.The article was published on 2011-12-01. It has received 1237 citations till now. The article focuses on the topics: Portland cement & Clinker (cement).read more
Citations
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Geopolymers and Related Alkali-Activated Materials
John L. Provis,Susan A. Bernal +1 more
TL;DR: In this paper, the synthesis of alkali-activated binders from blast furnace slag, calcined clay (metakaolin), and fly ash is discussed, including analysis of the chemical reaction mechanisms and binder phase assemblages that control the early-age and hardened properties of these materials.
Journal ArticleDOI
Effect of GGBFS on setting, workability and early strength properties of fly ash geopolymer concrete cured in ambient condition
Pradip Nath,Prabir Kumar Sarker +1 more
TL;DR: In this paper, a fly ash-based geopolymer concrete for curing in ambient condition can be proportioned for desirable workability, setting time, and compressive strength using ground granulated blast-furnace slag (GGBFS) as a small part of the binder.
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
Influence of slag chemistry on the hydration of alkali-activated blast-furnace slag — Part I: Effect of MgO
TL;DR: In this article, the microstructure of three AASs with MgO contents between 8 and 13.5% were investigated and the formation of C(−−A)−S−H and a hydrotalcite-like phase was observed in all samples by X-ray diffraction (XRD), thermal analysis (TGA) and scanning electron microscopy (SEM) techniques.
Journal ArticleDOI
Technical and commercial progress in the adoption of geopolymer cement
TL;DR: In the absence of an in-service track record comparable in scale and longevity to Portland cement, research is essential to validate durability testing methodology and improve geopolymer cement technology Colloid and interface science, gel chemistry, phase formation, reaction kinetics, transport phenomena, comminution, particle packing and rheology.
References
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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
TL;DR: 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.
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
Lea's chemistry of cement and concrete
P. C. Hewlett,F. M. Lea +1 more
TL;DR: The history of calcareous cements and Portland cements can be found in this paper, where the structure and cementing qualities of cement compounds the constitution of Portland cement, the burning of Portland Cement, the hydration of PortlandCement, resistance of concrete to natural destructive agencies physical and mechanical properties of Portland cement pozzolanas and pozzolanic cements cements made from blast furnace slag high alumina cement some special cements, and cement properties cement admixtures concrete aggregates.
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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 Role of Inorganic Polymer Technology in the Development of ‘Green Concrete’
TL;DR: In this paper, the potential position of and drivers for inorganic polymers (“geopolymers”) as an element of the push for a sustainable concrete industry are discussed.