Dynamic elastic properties of hardened experimental mortar bars affected by accelerated alkali-silica reactivity test: a laboratory approach
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F21%3AN0000025" target="_blank" >RIV/46356088:_____/21:N0000025 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/21:00550773 RIV/00216208:11310/21:10435953
Result on the web
<a href="https://link.springer.com/article/10.1007/s10064-021-02251-0" target="_blank" >https://link.springer.com/article/10.1007/s10064-021-02251-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10064-021-02251-0" target="_blank" >10.1007/s10064-021-02251-0</a>
Alternative languages
Result language
angličtina
Original language name
Dynamic elastic properties of hardened experimental mortar bars affected by accelerated alkali-silica reactivity test: a laboratory approach
Original language description
The evaluation of ASR sensitivity of aggregates is of utmost importance due to durability and safety of structures and also due to economic reasons related to repairs or replacements of ASR-affected concrete. Laboratory tests for ASR detection rely mostly on petrographic examination and on laboratory expansion tests. The latter are mostly expressed in terms of length change (expansion) of experimental mortar bars subjected to the effect of alkaline environment. Along with this, recording of the propagating ultrasonic wave signal can increase reliability of test results. In the recent study, dynamic elastic properties of experimental mortar bars were recorded in both normal setting/hardening state (first 28 days) and in the conditions of accelerated ageing conditions in alkaline solution with elevated temperature (another 37 days). Setting/hardening of the studied materials under normal conditions was manifested by quasi-exponential P- and S-wave ultrasonic velocity increase. However, alkaline solution resulted in the rapid development of ASR phenomena in reactive aggregates and significant change of elastic wave velocities and other dynamic elastic parameters. Comparing various ultrasonic characteristics, dynamic ones (amplitudes, frequencies) proved significantly higher sensitivity and tighter correlation to length changes (expansion) cause by ASR than did the kinematic ones (elastic wave velocities, dynamic elastic moduli).
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
10505 - Geology
Result continuities
Project
<a href="/en/project/GA18-08826S" target="_blank" >GA18-08826S: Resistance to brittle damage: use of petrographic/ rock mechanical data for the technological-mechanical behaviour and serviceability of crushed stone</a><br>
Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju
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
Bulletin of Engineering Geology and the Environment
ISSN
1435-9529
e-ISSN
—
Volume of the periodical
80
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
8921-8933
UT code for WoS article
000642839800002
EID of the result in the Scopus database
2-s2.0-85105130456