Vpliv zrnavostne strukture lahkega agregata na zgodnje avtogeno krčenje betona visoke trdnosti

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Ključne besede

Podatki

Jezik:	Slovenski jezik
Leto izida:	2013
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[D. Maleš]
UDK:	624.012.4:691.3(043.2)
COBISS:	6395489
Št. ogledov:	2678
Št. prenosov:	510
Ocena:	0 (0 glasov)
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Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	ǂThe ǂinfluence of structure of lightweight aggregate on early autogenous shrinkage of high strenght concrete
Sekundarni povzetek:	Early autogenous shrinkage of high strength concretes is relatively large. It can be reduced by using internal water reservoirs. Lightweight aggregate was used for internal water reservoir. 12% of aggregate was replaced with pre-soaked lightweight aggregate in the concrete mixture. On the basis of experiments in the graduation thesis we studied the influence of granulation of lightweight aggregate on early autogenous shrinkage. The shrinkage was measured electronically during the first day. In the next few days it was measured with a mobile displacement transducer. Beside autogenous shrinkage we measured the compressive strength of concrete. We concluded that content of pre-soaked lightweight aggregate have significant impact on autogenous shrinkage but relatively little impact on compressive strength.
Sekundarne ključne besede:	autogenous shrinkage;high strength concrete;lightweight aggregate;internal curing of concrete
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo/naloga
Komentar na gradivo:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani:	X, 27 str.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	The influence of granulation on lightweight aggregate on early autogenous shrinkage of high strength concrete
Ključne besede (ePrints):	zgodnje avtogeno krčenje;betoni visoke trdnosti;lahki agregat;notranja nega betona
Ključne besede (ePrints, sekundarni jezik):	autogenous shrinkage;high strength concrete;lightweight aggregate;internal curing of concrete
Povzetek (ePrints):	Zgodnje avtogeno krčenje betonov visoke trdnosti je razmeroma veliko. Zmanjšamo ga lahko z uporabo notranjih rezervoarjev vode. Za notranji rezervoar vode smo uporabili lahki agregat. V betonski mešanici smo 12% agregata nadomestili s predhodno namočenim lahkim agregatom. Na podlagi eksperimentalnih rezultatov smo v okviru diplomske naloge raziskovali vpliv različnih frakcij lahkega agregata na velikost zgodnjega avtogenega krčenja. Avtogeno krčenje v prvem dnevu smo merili elektronsko. V naslednjih dneh smo meritve izvajali s pomočjo nasadnega deformetra. Poleg avtogenega krčenja, smo merili tudi tlačne trdnosti preiskovanih betonov. Ugotovili smo, da vsebnost predhodno namočenega lahkega agregata znatno vpliva na velikost zgodnjega avtogenega krčenja, na velikost tlačne trdnosti pa razmeroma malo.
Povzetek (ePrints, sekundarni jezik):	Early autogenous shrinkage of high strength concretes is relatively large. It can be reduced by using internal water reservoirs. Lightweight aggregate was used for internal water reservoir. 12% of aggregate was replaced with pre-soaked lightweight aggregate in the concrete mixture. On the basis of experiments in the graduation thesis we studied the influence of granulation of lightweight aggregate on early autogenous shrinkage. The shrinkage was measured electronically during the first day. In the next few days it was measured with a mobile displacement transducer. Beside autogenous shrinkage we measured the compressive strength of concrete. We concluded that content of pre-soaked lightweight aggregate have significant impact on autogenous shrinkage but relatively little impact on compressive strength.
Ključne besede (ePrints, sekundarni jezik):	autogenous shrinkage;high strength concrete;lightweight aggregate;internal curing of concrete
ID:	8312931