Journal ArticleDOI
Characterization of alkali activated slag–fly ash blends containing nano-silica
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TLDR
In this paper, the effects of nano-silica incorporation on an eco-friendly alkali activated slag-fly ash blends were investigated, and the results indicated that as the nano silica content increases, the slump flow is significantly reduced, and reaction process is slightly retarded according to the setting time and isothermal calorimetry results.About:
This article is published in Construction and Building Materials.The article was published on 2015-11-15. It has received 151 citations till now. The article focuses on the topics: Compressive strength & Fly ash.read more
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The effect of nanomaterials on properties of geopolymers derived from industrial by-products: A state-of-the-art review
TL;DR: In this article, the effects of various nanomaterials such as nano-SiO2, nano-Al2O3 and nano-TiO2 on geopolymer paste, mortar and concrete derived from various industrial by-products as sources of aluminosilicates are discussed.
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Hardening evolution of geopolymers from setting to equilibrium: A review
TL;DR: In this article, a review of known factors that influence the setting time of fresh geopolymers and discusses the underlying chemical and physical-mechanisms of each parameter is discussed.
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Alkali-Activated Natural Pozzolan/Slag Mortars: A Parametric Study
TL;DR: In this paper, the influence of binder' aluminosilicate precursor combination (natural pozzolan/slag combinations), activator combination (sodium silicate/sodium hydroxide combinations), sodium hyroxide concentration, and alkaline activator solution-to-binder ratio (S/B) on properties of alkali-activated natural pozzolane and slag mortars were evaluated.
Journal ArticleDOI
Investigation on a green olivine nano-silica source based activator in alkali activated slag-fly ash blends: Reaction kinetics, gel structure and carbon footprint
TL;DR: In this article, a green olivine nano-silica is synthesized and applied as an alternative silicate source to prepare alkali activators, and a commercial waterglass based silica source is studied as a reference.
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Influence of steel fibers and microsilica on the mechanical properties of ultra-high-performance geopolymer concrete (UHP-GPC)
TL;DR: In this article , the influence of steel fiber and microsilica (also known as silica fume) on the mechanical characteristics of ultra-high performance geopolymer concrete (UHP-GPC) is investigated.
References
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Journal ArticleDOI
New cements for the 21st century: The pursuit of an alternative to Portland cement
TL;DR: Aluminosilicate-based alkaline cements have been classified into five categories as discussed by the authors, and the key advances made in the understanding of synthetic gels are discussed, which ultimately finds hybrid cements to be technologically viable materials for contemporary construction.
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Influence of nano-SiO2 addition on properties of hardened cement paste as compared with silica fume
TL;DR: In this paper, the influence of nano-SiO 2 (NS) addition on properties of hardened cement paste (hcp) as compared with silica fume (SF) has been studied through measurement of compressive and bond strengths of hcp, and by XRD and SEM analysis.
Journal ArticleDOI
Structure of Calcium Silicate Hydrate (C‐S‐H): Near‐, Mid‐, and Far‐Infrared Spectroscopy
TL;DR: In this paper, the mid-, near-, and far-infrared (IR) spectra of synthetic, single-phase calcium silicate hydrates (C-S-H) with Ca/Si ratios (C/S) of 0.41-1.2 were analyzed.
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.
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Characteristics of cement mortar with nano-SiO2 particles
TL;DR: In this paper, the properties of cement mortars with nano-SiO 2 were experimentally studied, and the results showed that the compressive strength of mortars containing nano SiO 2 particles was significantly higher than those of those containing silica fume at 7 and 28 days.
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