Fly ash admixture originating from lignite combustion in construction mortars – Time evolution of technical parameters and heavy metals leachability
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43930446" target="_blank" >RIV/60461373:22310/24:43930446 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21110/24:00377230
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2590123024012003" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2590123024012003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.rineng.2024.102945" target="_blank" >10.1016/j.rineng.2024.102945</a>
Alternative languages
Result language
angličtina
Original language name
Fly ash admixture originating from lignite combustion in construction mortars – Time evolution of technical parameters and heavy metals leachability
Original language description
The production of cement, the predominant construction binder, is associated with high energy consumption, enormous raw material depletion, and a large volume of CO2 emissions, making cement one of the most polluting materials. This study aims to contribute to the sustainability of the construction industry by significantly reducing the proportion of Portland cement (PC) in the composition of mortars. The binder content reduction was achieved by the addition of large amounts of fly ash admixture (FA) from lignite combustion while studying the effectiveness of the immobilization of heavy metals (HMs), which are present in FA, in the PC/FA matrix. Along with the analysis of the FA admixture amount on the properties of the prepared mortars, emphasis was put on the study of the influence of prolonged curing on the development of the physical parameters of the mortars and the immobilization efficiency of the HMs. It was revealed that FA can be added to PC by up to 20 wt%, enabling the production of construction mortars with high strength and low porosity, while confining hazardous substances such as HMs in the matrix. Prolonged curing at elevated relative humidity led to the continuous evolution and solidification of the mortar structure, improving its engineering properties and HMs immobilization efficiency. © 2024 The Author(s)
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
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/GA23-04744S" target="_blank" >GA23-04744S: Research of heavy metals immobilization in alternative low-carbon composites</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Results in Engineering
ISSN
2590-1230
e-ISSN
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Volume of the periodical
24
Issue of the periodical within the volume
prosinec
Country of publishing house
ZA - SOUTH AFRICA
Number of pages
10
Pages from-to
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UT code for WoS article
001321945800001
EID of the result in the Scopus database
2-s2.0-85204629590