Mechanical Fracture Properties of Alkali-Activated Slag with Graphite Filler

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F17%3APU124881" target="_blank" >RIV/00216305:26110/17:PU124881 - isvavai.cz</a>
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S1877705817324451" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1877705817324451</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.proeng.2017.05.305" target="_blank" >10.1016/j.proeng.2017.05.305</a>

Result language
angličtina
Original language name
Mechanical Fracture Properties of Alkali-Activated Slag with Graphite Filler
Original language description
Alkali-activated slag is a building material considered as alternative to ordinary Portland cement based materials. Addition of graphite powder increases its electric conductivity, hence, introducing new functionality to building materials such as selfsensing and self-heating properties. In this study, the effect of graphite filler on the mechanical fracture properties of alkaliactivated slag composite is investigated. Graphite powder was added in the amount of 5, 10 and 15% with respect to the slag mass. Modulus of elasticity, fracture toughness and fracture energy were determined using standard three-point bending test on prismatic specimens with central edge notch. The course of fracture tests was also monitored by acoustic emission (AE) method. Compressive strength was determined on the fragments remaining after the fracture tests. Results showed that addition of graphite caused a decrease in compressive strength, fracture toughness and fracture energy but modulus of elasticity increased. Addition of graphite also caused a decrease in AE events and increase in amplitude of signals. This implies that mortars with graphite filler is more brittle than the reference mortar, and lower number of much larger cracks is formed during the fracture test.
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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Structural and Physical Aspects of Construction Engineering
ISBN
978-80-553-2643-6
ISSN
1877-7058
e-ISSN
—
Number of pages
6
Pages from-to
43-48
Publisher name
Elsevier
Place of publication
Netherlands
Event location
High Tatras, Štrbské Pleso
Event date
Nov 9, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000416996800007

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