Effect of alkali cation type on the plasticizing effect of ligno-sulfonate in alkali-activated systems

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F21%3APU142620" target="_blank" >RIV/00216305:26310/21:PU142620 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012016" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/1205/1/012016</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1757-899X/1205/1/012016" target="_blank" >10.1088/1757-899X/1205/1/012016</a>

Result language
angličtina
Original language name
Effect of alkali cation type on the plasticizing effect of ligno-sulfonate in alkali-activated systems
Original language description
The rheological properties of alkali-activated systems are significantly affected by the nature of the alkaline activator. Hydroxide-activated systems' workability is typically lower than that of alkali-activated systems but can be improved by lignosulfonate plasticizer. However, the lignosulfonate plasticizer's effectivity depends on the dosage of lignosulfonate, the nature of hydroxide and pH of their solutions. Therefore, in this study, the effectiveness of lignosulfonate plasticizer with respect to alkali ion type (Na+, K+, Li+) in alkali hydroxide-activated systems based on ground granulated blast furnace slag was evaluated. The concentration of the alkaline activator (NaOH, KOH and LiOH) was the same in all cases of 4M. The superplasticizer dosage was 0%, 0.5% and 1.0% of dry matter of lignosulfonate plasticizer to the slag weight. Rheological properties were determined using a rotational rheometer equipped with vane in-cup geometry working in oscillation amplitude sweep mode, from which critical strain and corresponding viscoelastic variables were obtained.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
IOP Conference Series: Materials Science and Engineering
ISBN
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ISSN
1757-8981
e-ISSN
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Number of pages
7
Pages from-to
1-7
Publisher name
IOP Publishing
Place of publication
Bristol
Event location
Telč
Event date
Sep 29, 2021
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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