Study of gypsum composites with fine solid aggregates at elevated temperatures
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00350248" target="_blank" >RIV/68407700:21110/21:00350248 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1515/secm-2021-0025" target="_blank" >https://doi.org/10.1515/secm-2021-0025</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/secm-2021-0025" target="_blank" >10.1515/secm-2021-0025</a>
Alternative languages
Result language
angličtina
Original language name
Study of gypsum composites with fine solid aggregates at elevated temperatures
Original language description
The structure and behaviour of two gypsum composites after exposition to elevated temperatures were investigated. The silica sand and fine basalt aggregate were used as solid fillers. The changes in structure and composition at temperatures from 50 to 1,000°C were investigated by scanning electron microscopy and X-ray diffraction together with the size and strength of the samples and their pore size distribution. The structure of gypsum matrix changed significantly at 1,000°C in both composites, while the aggregate particles were not changed. It was found that even if the silica sand is considered as less suitable filler at high temperatures because of its volume changes, the gypsum with sand performed better than gypsum with basalt at the highest temperatures, because the shrinkage of the gypsum matrix was compensated by the increase in the volume of aggregate. The final volume change at 1,000°C was 3.5% in composite with silica sand and 6.8% in composite with basalt. The residual compressive strength of both composites was about 9.4%. No cracks appeared in the samples and no spalling was observed
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
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/GA19-08605S" target="_blank" >GA19-08605S: Influence of fillers on the structure and properties of calcium sulphate composites</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Science and Engineering of Composite Materials
ISSN
0792-1233
e-ISSN
2191-0359
Volume of the periodical
28
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
237-248
UT code for WoS article
000667955500001
EID of the result in the Scopus database
2-s2.0-85106552808