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Naslov:Hardening of concrete with a planned delayed ettringite formation
Avtorji:ID Lubej, Samo (Avtor)
ID Ivanič, Andrej (Avtor)
ID Radosavljević, Milan (Avtor)
Datoteke:URL http://www.civilica.com/EnPaper-ICCT01-ICCT01_098.html
 
Jezik:Angleški jezik
Vrsta gradiva:Neznano
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:FGPA - Fakulteta za gradbeništvo, prometno inženirstvo in arhitekturo
Opis:Delayed ettringite formation (DEF) in cementitious materials is widely considered as a harmful chemical reaction that causes extensive damages in hardened concrete. However, preventative measures and possible improvements in general are not extensively studied and require further attention. In this study was presented an investigation into a type of controlled DEF in places of finely dispersed crystallisation nuclei and provide evidence that the process may improve compressive strength of cementitious materials. The Alkali-Silica Reaction (ASR) in hydrated concrete was achieved with the addition of fly ash and was further accelerated with the Dugganćs test. Achieved strengths and monitoring of microstructure development conducted with electronic microscopy revealed that growth of ettringite crystals in the nuclei led to harmless internal compressive stresses, expansion of hydrated concrete and overall strengthening of the concrete matrix.
Ključne besede:delayed ettringite formation, concrete, hardening
Leto izida:2009
PID:20.500.12556/DKUM-26569 Novo okno
UDK:691
COBISS.SI-ID:14199318 Novo okno
ISSN pri članku:1735-5540
NUK URN:URN:SI:UM:DK:HPCGDX6A
Datum objave v DKUM:31.05.2012
Število ogledov:1803
Število prenosov:46
Metapodatki:XML DC-XML DC-RDF
Področja:Ostalo
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.
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Gradivo je del revije

Naslov:Civilica
Skrajšan naslov:Civilica. encycl. civ. eng
Založnik:Shirkat-i tusiđah-i fanavaräi-i säakhtimäan-i bäum/säazah
ISSN:1735-5540
COBISS.SI-ID:14198550 Novo okno

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