Effect of Binder Content and Solution/Binder Ratio on Alkali-Activated Slag Concrete Activated with Neutral Grade Water Glass
Sign Up to like & getrecommendations! Published in 2020 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-020-04666-5
Abstract: Use of alkali-activated slag concrete (AASC) in replacing conventional concrete has become an environmentally friendly alternative construction technique. Alkali activation of fly ash and ground granulated blast furnace slag (GGBFS) using NaOH and Na 2… read more here.
Keywords: activated slag; binder; solution; alkali activated ... See more keywords
Carbonation Resistance of Alkali-Activated Slag Under Natural and Accelerated Conditions
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DOI: 10.1007/s40831-018-0166-4
Abstract: In this paper, carbonation resistance of alkali-activated slag (AAS) pastes exposed to natural and accelerated conditions up to 1 year was investigated. Two aspects of carbonation mechanism were evaluated. The first was the potential carbonation of… read more here.
Keywords: carbonation resistance; carbonation; activated slag; resistance alkali ... See more keywords
Performance of magnesia-modified sodium carbonate-activated slag/fly ash concrete
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DOI: 10.1016/j.cemconcomp.2019.05.007
Abstract: Various innovative research in the cement industry is looking into improving its environmental sustainability. Sodium carbonate-activated slag/fly ash (NC-SF) binders has recently evolved as a potentially more sustainable binding materials than both Portland cement and… read more here.
Keywords: sodium carbonate; performance; carbonate activated; strength ... See more keywords
Lightweight cement-free alkali-activated slag plaster for the structural retrofit and energy upgrading of poor quality masonry walls
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DOI: 10.1016/j.cemconcomp.2019.103341
Abstract: Abstract The paper deals with the development of an innovative Portland-free lightweight structural plaster to improve the seismic performance and the energy efficiency of poor quality stone masonry buildings. In particular, one-part alkali-activated slag-based mortars… read more here.
Keywords: alkali activated; alkali; poor quality; energy ... See more keywords
Influence of activator composition on the chloride binding capacity of alkali-activated slag
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DOI: 10.1016/j.cemconcomp.2019.103368
Abstract: Abstract In this work, the mechanisms of chloride binding in alkali-activated slag (AAS) pastes are studied, towards a better understanding of the role of activator composition (i.e., NaOH, Na2CO3, Na2SO4, KOH, and K2CO3 solutions) on… read more here.
Keywords: activated slag; activator; chloride binding; binding capacity ... See more keywords
Shrinkage mitigation strategies in alkali-activated slag
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DOI: 10.1016/j.cemconres.2017.08.025
Abstract: Abstract In this work, three shrinkage mitigation strategies (i.e. high-temperature curing, sulfate-enrichment, and calcium-enrichment) were evaluated and their effectiveness in mitigating shrinkage of alkali-activated slag (AAS) was studied. The results show that the cause of… read more here.
Keywords: shrinkage mitigation; activated slag; mitigation strategies; shrinkage ... See more keywords
Autogenous shrinkage of alkali activated slag mortars: Basic mechanisms and mitigation methods
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DOI: 10.1016/j.cemconres.2018.04.004
Abstract: Abstract This paper presents various mechanisms that can explain the cause of excessive autogenous shrinkage exhibited by alkali activated slag mortars (AASM) compared to Portland cement mortars (OPC). The influence of activator concentration parameters such… read more here.
Keywords: shrinkage alkali; activated slag; autogenous shrinkage; shrinkage ... See more keywords
The unusual solidification process of alkali activated slag and its relationship with the glass structure of the slag
Sign Up to like & getrecommendations! Published in 2019 at "Cement and Concrete Research"
DOI: 10.1016/j.cemconres.2019.04.004
Abstract: Abstract Two types of blast furnace slags (HS N and HS V) with different CaO/SiO2 ratios, were activated by potassium silicate solution (Ms = 1). The results showed that most of the alkali silicate activated slag AAS… read more here.
Keywords: solidification process; slag; glass structure; unusual solidification ... See more keywords
Mechanism of sulfate attack on alkali-activated slag: The role of activator composition
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DOI: 10.1016/j.cemconres.2019.105868
Abstract: Abstract In this work, the degradation mechanisms of alkali-activated slag (AAS), prepared with various activator compositions, exposed to 5% Na2SO4 and MgSO4 solutions are studied. The results show that upon Na2SO4 attack, little ettringite formation… read more here.
Keywords: attack; activated slag; activator; sulfate attack ... See more keywords
Comparison of liquid absorption-release of superabsorbent polymers in alkali-activated slag and Portland cement systems: An NMR study combined with additional methods
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DOI: 10.1016/j.cemconres.2021.106369
Abstract: Abstract In this study, 1H low-field NMR was used to compare the liquid absorption-release behaviour of superabsorbent polymers (SAPs) in Portland cement (PC) paste, NaOH-activated slag (SH-AAS) paste, and water glass-activated slag (WG-AAS) paste. The… read more here.
Keywords: paste; system; absorption release; liquid absorption ... See more keywords
Evaluation of slag characteristics on the reaction kinetics and mechanical properties of Na2CO3 activated slag
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DOI: 10.1016/j.conbuildmat.2016.11.074
Abstract: This paper evaluates the slag characteristics on the reaction kinetics, reaction products and mechanical properties of sodium carbonate activated slag (SCAS). The results show that, by reducing the slag particle size, the precipitation of strength-giving… read more here.
Keywords: slag; activated slag; characteristics reaction; reaction kinetics ... See more keywords