Journal ArticleDOI
Effect of process parameters on the performance of fly ash/GGBS blended geopolymer composites
Hilal El-Hassan,Najif Ismail +1 more
TLDR
Alkali activation of fly ash and ground-granulated blast-furnace slag (GGBS) is a sustainable technology that promotes recycling of industrial by-products in the form of geopolymer composites.Abstract:
Alkali activation of fly ash and ground-granulated blast-furnace slag (GGBS) is a sustainable technology that promotes recycling of industrial by-products in the form of geopolymer composites. In t...read more
Citations
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Journal ArticleDOI
A review on mixture design methods for geopolymer concrete
TL;DR: A review on currently reported mixture design methods of GPC prepared with slag and fly ash is presented in this article, where various methods are classified into three categories: target strength method, performance-based method, and statistical factorial model method.
Journal ArticleDOI
Effect of slag on the mechanical properties and bond strength of fly ash-based engineered geopolymer composites
TL;DR: In this paper, a low-calcium (Class F) fly ash-based, polyvinyl alcohol (PVA) fiber reinforced EGC was developed and further modified by a ground-granulated blast-furnace slag (slag).
Journal ArticleDOI
Optimum mix design of geopolymer pastes and concretes cured in ambient condition based on compressive strength, setting time and workability
TL;DR: In this article, the effects of ground granulated blast furnace slag (GGBFS) content, alkaline solution to binder (Al/Bi) mass ratio, sodium silicate solution to sodium hydroxide solution (SS/SH), and additional water-to-bi mass ratio on the compressive strength, setting time and workability of geopolymer pastes were studied.
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
Understanding the roles of activators towards setting and hardening control of alkali-activated slag cement
TL;DR: In this article, the role of activators during the alkali-activated slag process was studied via pore solution chemistry analysis and microstructural analysis of hydration products.
References
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Journal ArticleDOI
Alkali-activated fly ashes: A cement for the future
TL;DR: In this paper, the mechanism of activation of fly ash with highly alkaline solutions is described, and the product of the reaction is an amorphous aluminosilicate gel having a structure similar to that of zeolitic precursors.
Book
Alkali-Activated Cements and Concretes
TL;DR: Alkali-Activated Cement and Concrete as discussed by the authors is a type of Cementitious Systems that uses Alkaline Activators to activate slag cements and lime-pozzolan cements.
Journal ArticleDOI
The coexistence of geopolymeric gel and calcium silicate hydrate at the early stage of alkaline activation
TL;DR: In this paper, the effects of ground granulated blast furnace slag (GGBFS) on the microstructure and mechanical properties of metakaolin (MK) based geopolymers were studied.
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
On the development of fly ash-based geopolymer concrete
TL;DR: In this article, fly ash-based geopolymer concrete was developed to reduce greenhouse gas emissions, and the test results showed the effects of various parameters on the properties of the concrete.