Vpliv šibkih mest v strukturi betona na njegovo odpornost proti prodoru vode

Povzetek

Ključne besede

Podatki

Jezik:	Slovenski jezik
Leto izida:	2009
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[S. Kuzmanović]
UDK:	691.32(043.2)
COBISS:	4759905
Št. ogledov:	2331
Št. prenosov:	363
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Influence of weak parts in concrete structure on resistance of concrete of water penetration
Sekundarni povzetek:	The diploma thesis deals with the resistance of three different concretes against penetration of water under pressure. Water-binder ratio of first concrete mix was 0.55 and of second and third mix it was 0.40. The concrete mixes were made using crushed limestone aggregate, tap water and cement CEM II/A-M (LL-S) 42,5R. The second and the third mix incorporated polycarboxylate type of superplasticizer and in the third mix cement was partially replaced by fly ash. On fresh concrete mixes different consistency tests were carried out and air content was determined, and on hardened concrete mixes compressive and splitting tensile tests were carried out. In case of compressive strength the influence of curing and the type of mould material were tested as well. At the end the influence of weak parts in the concrete structure on the resistance against penetration of water under pressure were studied. The studied weak parts were honeycombs, bug holes and cold joints.
Sekundarne ključne besede:	graduation thesis;concrete structure;resistance of concrete;concrete water penetration;
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. Ljubljana, Fakulteta za gradbeništvo in geodezijo
Strani:	XIII, 123 str.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	Influence of weak parts in concrete structure on resistance of concrete to water penetration
Ključne besede (ePrints):	struktura betona;odpornost betona;vodotesnost betona
Ključne besede (ePrints, sekundarni jezik):	concrete structure;resistance of concrete;concrete water penetration
Povzetek (ePrints):	V diplomski nalogi smo najprej ugotavljali odpornost treh različnih betonov proti prodoru vode pod pritiskom. Vodovezivno razmerje prve mešanice je bilo 0,55, ostalih dveh mešanic pa 0,4. Za izdelavo mešanic smo uporabili drobljen apnenčev agregat, vodo iz ljubljanskega vodovodnega omrežja in cement CEM II/A-M (LL-S) 42,5R. Druga in tretja mešanica sta vsebovali tudi superplastifikator polikarboksilatnega tipa, pri tretji mešanici pa smo del cementa zamenjali z elektrofiltrskim pepelom. Poleg odpornosti betona proti prodoru vode smo preskušali tudi lastnosti betonov v svežem stanju ter njihovo tlačno in cepilno natezno trdnost. Pri tlačni trdnosti nas je, poleg razlik med različnimi sestavami, zanimal tudi vpliv nege in vrste opaža na doseženo tlačno trdnost betona. Sledile so preiskave vpliva šibkih mest v strukturi betona na njegovo odpornost proti prodoru vode. Šibka mesta, ki so bila predmet preiskav, so gnezda, hladni stiki in prisotnost zračnih žepov.
Povzetek (ePrints, sekundarni jezik):	The diploma thesis deals with the resistance of three different concretes against penetration of water under pressure. Water-binder ratio of first concrete mix was 0.55 and of second and third mix it was 0.40. The concrete mixes were made using crushed limestone aggregate, tap water and cement CEM II/A-M (LL-S) 42,5R. The second and the third mix incorporated polycarboxylate type of superplasticizer and in the third mix cement was partially replaced by fly ash. On fresh concrete mixes different consistency tests were carried out and air content was determined, and on hardened concrete mixes compressive and splitting tensile tests were carried out. In case of compressive strength the influence of curing and the type of mould material were tested as well. At the end the influence of weak parts in the concrete structure on the resistance against penetration of water under pressure were studied. The studied weak parts were honeycombs, bug holes and cold joints.
Ključne besede (ePrints, sekundarni jezik):	concrete structure;resistance of concrete;concrete water penetration
ID:	8310795