On the action mechanism of lignosulfonate plasticizer in alkali-activated slag-based system
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F22%3APU144553" target="_blank" >RIV/00216305:26310/22:PU144553 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0008884622001132" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0008884622001132</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cemconres.2022.106822" target="_blank" >10.1016/j.cemconres.2022.106822</a>
Alternative languages
Result language
angličtina
Original language name
On the action mechanism of lignosulfonate plasticizer in alkali-activated slag-based system
Original language description
Workability improvement of alkali-activated materials by common plasticizers used for ordinary Portland cement is usually an issue, but certain effectiveness is often found for lignosulfonate-based plasticizers (LS), especially for activation with sodium hydroxide (its silicate modulus considered as zero). Therefore, the action of LS depending on the silicate modulus of the activator (0, 0.10, 0.25, 0.50) was studied in this paper, using non- traditional oscillation strain sweep tests. The results showed that LS works for silicate moduli of 0 and 0.10 especially in terms of great reduction in the viscoelastic moduli due to a significant decrease in zeta potential magnitude. However, LS had a marginal effect for the silicate moduli of 0.25 and 0.50, which was attributed to the competitive adsorption of LS and silicates from waterglass onto the slag grains. Although splitting of LS chains in NaOH was proven using X-ray photoelectron spectroscopy, electrostatic repulsion of smaller fragments is preserved.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA20-26896S" target="_blank" >GA20-26896S: Towards the organic admixtures tailoring for alkali-activated slag-based systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Cement and Concrete Research
ISSN
0008-8846
e-ISSN
1873-3948
Volume of the periodical
157
Issue of the periodical within the volume
2022-04-30
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
1-12
UT code for WoS article
000798758100002
EID of the result in the Scopus database
2-s2.0-85128994559