Površinska odpornost betonov na zmrzovanje in tajanje ob prisotnosti talilnih soli

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Ključne besede

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Jezik:	Slovenski jezik
Leto izida:	2013
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[J. Šircelj]
UDK:	691.322(043.2)
COBISS:	6397025
Št. ogledov:	3015
Št. prenosov:	726
Ocena:	0 (0 glasov)
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Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Scaling resistance of concrete surfaces exposed to deicing chemicals
Sekundarni povzetek:	This graduation thesis covers the area of concrete resistance to external influences, especially the effects of freezing and thawing in presence of deicing salts (resistance to salt frost scaling). We investigated the effect of chloride salts on scaling of concrete. In addition to etalon sample of concrete with cement CEM I, we also included mineral additive fly ash as a replacement of part of the cement in concrete. To determine the resistance of each concrete mixture to salt frost scaling by using different types of chloride salts we implemented standard test method according to the SIST 1026 standard. We investigated resistance of different types of aerated concrete in combination with various types of deicing salts in different concentrations. In the context of this thesis we also performed some additional tests. Initial tests on fresh concretes were carried out primarily to ensure approximately the same consistency of all concrete mixtures tested. On the hardened concrete we finally performed an investigation of penetration depth of chlorides and carried out linear microscopy for easier interpretation of the results obtained.
Sekundarne ključne besede:	graduation thesis;civil engineering;OG-MK;aerated concrete;air micro pores;mineral additive (fly ash);saline solutions;freezing;thawing;surface resistance;salt scaling resistance;scaling;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo/naloga
Komentar na gradivo:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani:	XII, 56 str.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	Scaling resistance of concrete surfaces exposed to deicing chemicals
Ključne besede (ePrints):	aeriran beton;zračne mikropore;mineralni dodatek;elektrofiltrski pepel;solne raztopine;zmrzovanje;tajanje;površinska odpornost;OPZT;luščenje
Ključne besede (ePrints, sekundarni jezik):	aerated concrete;air micro pores;mineral additive;fly ash;saline solutions;freezing;thawing;surface resistance;salt scaling resistance;scaling
Povzetek (ePrints):	V diplomski nalogi je obravnavano področje odpornosti betona na zunanje vplive, predvsem na vplive zmrzovanja in tajanja ob prisotnosti talilnih soli. Preiskava se je nanašala na vpliv kloridnih soli na luščenje betona, pri čemer smo v preiskavo poleg etalonskega vzorca, betona s cementom CEM I, vključili tudi beton z mešanim vezivom iz cementa CEM I in elektrofiltrskega pepela. Za določitev odpornosti posamezne betonske mešanice ob uporabi različnih vrst kloridnih soli nam je služila standardna (SIST 1026) preiskava Odpornosti površine betona proti zmrzovanju in tajanju – OPZT. Uporabljenih je bilo več vrst aeriranega betona v kombinaciji z različnimi vrstami talilnih soli v različnih koncentracijah. V okviru naloge smo izvedli tudi nekaj pomožnih preiskav. Začetne preiskave na svežem betonu smo opravili predvsem z namenom zagotavljanja podobnih konsistenc vseh betonov, na koncu pa smo za lažjo interpretacijo dobljenih rezultatov OPZT na strjenih preskušancih opravili še preiskavo globine prodora kloridov ter linijsko mikroskopijo.
Povzetek (ePrints, sekundarni jezik):	This graduation thesis covers the area of concrete resistance to external influences, especially the effects of freezing and thawing in presence of deicing salts (resistance to salt frost scaling). We investigated the effect of chloride salts on scaling of concrete. In addition to etalon sample of concrete with cement CEM I, we also included mineral additive fly ash as a replacement of part of the cement in concrete. To determine the resistance of each concrete mixture to salt frost scaling by using different types of chloride salts we implemented standard test method according to the SIST 1026 standard. We investigated resistance of different types of aerated concrete in combination with various types of deicing salts in different concentrations. In the context of this thesis we also performed some additional tests. Initial tests on fresh concretes were carried out primarily to ensure approximately the same consistency of all concrete mixtures tested. On the hardened concrete we finally performed an investigation of penetration depth of chlorides and carried out linear microscopy for easier interpretation of the results obtained.
Ključne besede (ePrints, sekundarni jezik):	aerated concrete;air micro pores;mineral additive;fly ash;saline solutions;freezing;thawing;surface resistance;salt scaling resistance;scaling
ID:	8312950