Crack Initiation of Alkali-activated Slag Based Composites with Graphite Filler

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU125594" target="_blank" >RIV/00216305:26110/18:PU125594 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.761.79" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.761.79</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.761.79" target="_blank" >10.4028/www.scientific.net/KEM.761.79</a>

Result language
angličtina
Original language name
Crack Initiation of Alkali-activated Slag Based Composites with Graphite Filler
Original language description
The alkali-activated slag is an alternative building material to ordinary Portland cement based materials. This type of material is effective in reducing CO2 emissions and energy consumption. Addition of graphite powder increases its electric conductivity, hence, introducing new functionality to building materials such as self-sensing and self-heating properties. In this study, the effect of graphite filler on the crack initiation of alkali-activated slag composite is investigated. The graphite powder was added in the amount of 5, 10 and 15% with respect to the slag mass. Beam specimens with an initial stress concentrator were tested in three-point bending at the age of 28 days. The load versus crack mouth crack opening displacement (F–CMOD) diagrams were recorded during the fracture tests and subsequently evaluated using the Double-K fracture model. This model allows the quantification of two different levels of crack propagation: initiation, which corresponds to the beginning of stable crack growth, and the level of unstable crack propagation. The course of fracture tests was also monitored by acoustic emission (AE) method.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Key Engineering Materials: Non-Traditional Cement and Concrete
ISBN
978-3-0357-1096-0
ISSN
1013-9826
e-ISSN
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Number of pages
4
Pages from-to
57-60
Publisher name
Trans Tech Publications
Place of publication
Switzerland
Event location
Brno
Event date
Jun 19, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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