Supersulphated cements from waste materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F22%3APU147218" target="_blank" >RIV/00216305:26310/22:PU147218 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27120/22:10251705
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Supersulphated cements from waste materials
Original language description
Supersulphated cements are considered to be one of the first alkali-activated cements. Ground granulated blast-furnace slag is activated with a small amount of Portland cement in the presence of gypsum, providing C-S-H gel and ettringite as the main reaction products. These materials exhibit some good properties; the most important of these being good sulphate resistance and also good environmental effects. Standard EN15743+A1 "Supersulphated cement" describes the conditions for the composition of this binder. In this paper, the product after desulphurisation (PPR) from the Třebovice heating plant (Ostrava) was used as a source of gypsum. Strength development was recorded up to 91 days for different ratios of compounds. Early strengths are very low and are higher for higher ordinary Portland cement content. At 28 and 91 days of age the strengths are almost the same for gypsum contents from 10 to 20% and all cement contents (2.5, 3.75% and 5%). These strengths are relatively high - around 50 MPa. Supersulphated cements can be a good choice for the use of waste material - the product after desulphurisation.
Czech name
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Czech description
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Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
SP-355: Recent Advances in Concrete Technology and Sustainability Issues
ISBN
978-1-64195-184-5
ISSN
0193-2527
e-ISSN
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Number of pages
8
Pages from-to
375-382
Publisher name
American Concrete Institute
Place of publication
Milán
Event location
Milán
Event date
Jul 13, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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