Crack Initiation and Length Change in Modified Alkali Activated Slag Mortars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F15%3APU115509" target="_blank" >RIV/00216305:26110/15:PU115509 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1061/9780784479346.133" target="_blank" >http://dx.doi.org/10.1061/9780784479346.133</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1061/9780784479346.133" target="_blank" >10.1061/9780784479346.133</a>

Result language
angličtina
Original language name
Crack Initiation and Length Change in Modified Alkali Activated Slag Mortars
Original language description
The aim of this paper was to quantify crack initiation and length change of ordinary Portland cement-based mortar and three types of alkali activated slag mortars: reference one that only slag was used as binder, the second one with same amount of slag and with shrinkage reducing admixture in amount 1 % weight of slag and the third one with 5 % weight of slag replaced by fluidized bed combustion fly ash. Czech standard sand consisting of three different fractions (fulfilling requirements of ČSN EN 196-1) was used in all mixtures. The sand to binder ratio was 2:1 and water to binder ratio was 0.40 in all mixtures. Curing and length change testing of the specimens were based on ASTM C596-07 and ASTM C490-7. After demolding and three days of water curing mortar prisms were placed in air storage for 24 days. During this period length change (shrinkage) was measured. After that the three point bending test was performed on these specimens at the age of 28 days to obtain the fracture parameters, which was determined via Double-K fracture model. The initiation of cracks during the fracture tests was also monitored by the acoustic emission method. For comparison, specimens cured in water until the age of 28 days were tested in the same manner.
Czech name
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Czech description
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Project
<a href="/en/project/LO1408" target="_blank" >LO1408: AdMaS UP – Advanced Building Materials, Structures and Technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
CONCREEP-10 Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures
ISBN
978-0-7844-7934-6
ISSN
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e-ISSN
—
Number of pages
10
Pages from-to
1109-1118
Publisher name
American Society of Civil Engineers
Place of publication
Reston, Virginia
Event location
Vienna
Event date
Sep 21, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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