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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Effect of relative GGBS/fly contents and alkaline solution concentration on compressive strength development of geopolymer mortars subjected to sulfuric acid
TL;DR: In this article , the effect of subsuming geopolymer mortar samples in highly acidic solution for 7-, 28-, and 90-days on stability of mass and the development of compressive strength was assessed experimentally.
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Pozzolanicity of fly ash modified by fluidized bed reactor–vapor deposition
TL;DR: In this article, a fluidized bed reactor-vapor deposition (FBR-VD) was designed to modify fly ash (FA) by using NaOH solution as the activation material, which accelerates the early-age pozzolanic reaction of FA without affecting the workability of the paste.
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Application of nanosilica in reinforced concrete beams
TL;DR: In this article , the effect of nanosilica particles as a partial replacement of cement for concrete mixes and concrete beams was examined. And the results showed that compressive strength increased with an increase in NS content up to 2.0%.
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Performance enhancement of cementitious soil stabilizers using incorporated nanosilica
TL;DR: In this paper , a series of experimental tests including scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) are considered as well as mechanical tests to investigate the various aspects of the material.
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Microscopic analysis of nano-modified fly ash by fluidized bed reactor-vapor deposition
TL;DR: In this article, the nano-modification and hydration mechanisms of fly ash (FA) modified by fluidized bed reactor-vapor deposition (FBR-VD) has been analyzed microscopically.
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.
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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
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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