Crack-Resistance of 25 Cements Determined by the Ring Shrinkage Test

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00366713" target="_blank" >RIV/68407700:21110/23:00366713 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/978-3-031-33211-1_95" target="_blank" >https://doi.org/10.1007/978-3-031-33211-1_95</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-031-33211-1_95" target="_blank" >10.1007/978-3-031-33211-1_95</a>

Result language
angličtina
Original language name
Crack-Resistance of 25 Cements Determined by the Ring Shrinkage Test
Original language description
Cement-based materials are known for shrinkage strain on drying, causing easily crack initiation under internal or external restraint. Higher crack resistance can be achieved by slowing down the strength gain with slower chemical shrinkage evolution. The ring shrinkage test provides an accelerated method how to quantify cracking resistance on drying, supported with long-term experiments for concrete surface cracking. The experiments presented in this paper use ring shrinkage tests for 25 mortars, which cover 10 commercial cements and 15 on- demand cements, spanning Portland cements and blended cements for 30% slag substitution at maximum. The results proved that the ring cracking time increases while lowering the Blaine fineness or increasing slag substitution. A crack-resistant cements have upper limits for 2-day compressive strength and Blaine fineness which are for Portland cements as 27.7 MPa and 312 m2 /kg, respectively. The results show that only two out of ten commercial cements can be considered as crack-resistant, while cements on-demand increase this ratio to 10 out of 15.
Czech name
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Czech description
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Project
<a href="/en/project/GA21-03118S" target="_blank" >GA21-03118S: Thermo-hygro-mechanical model of concrete pavements</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
ISBN
978-3-031-33210-4
ISSN
2211-0844
e-ISSN
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Number of pages
10
Pages from-to
1059-1068
Publisher name
Springer
Place of publication
Cham
Event location
Adamas
Event date
Jun 14, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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