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The relation between concrete, mortar and paste scale early age properties
Klun, Martin (Avtor), Bosiljkov, Vlatko (Avtor), Bokan-Bosiljkov, Violeta (Avtor)

URLURL - Izvorni URL, za dostop obiščite https://www.mdpi.com/1996-1944/14/6/1569 Povezava se odpre v novem oknu

Izvleček
Microstructure development of concrete, mortar, and paste scale of cement-based material (CBM) during the early hydration stage has a significant impact on CBM%s physical, mechanical, and durability characteristics at the high maturity state. The research was carried out using compositions with increased autogenous shrinkage and extended early age period, proposed within the RRT+ programme of the COST Action TU1404. The electrical conductivity method, used to follow the solidification process of CBM, is capable of determining the initial and final setting time, and the end of the solidification process acceleration stage for the paste and mortar scale. Simultaneous ultrasonic P- and S-wave transmission measurements revealed that the ratio of velocities VP/VS is highly dependent on the presence of aggregates%it is considerably higher for the paste scale compared to the mortar and concrete scale. The deviation from the otherwise roughly constant ratio VP/VS for each scale may indicate cracks in the material. The non-linear correlation between the dynamic and static elastic moduli valid over the three scales was confirmed. Additionally, it was found that the static E-modulus correlates very well with the square of the VS and that the VS is highly correlated to the cube compressive strength%but a separate trendline exists for each CBM scale.

Jezik:Angleški jezik
Ključne besede:concrete, mortar and paste scale of cement-based material, early hydration stage, microstructure development, electrical conductivity, ultrasonic method, standard test
Vrsta gradiva:Znanstveno delo (r2)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FGG - Fakulteta za gradbeništvo in geodezijo
Leto izida:2021
Poslano v recenzijo:01.03.2021
Datum sprejetja članka:19.03.2021
Datum objave članka:23.03.2021
Št. strani:Str. 1-24
Številčenje:Vol. 14, iss. 6
UDK:620.1:691
ISSN pri članku:1996-1944
DOI:10.3390/ma14061569 Povezava se odpre v novem oknu
COBISS.SI-ID:57744899 Povezava se odpre v novem oknu
Število ogledov:172
Število prenosov:28
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Gradivo je del revije

Naslov:Materials
Skrajšan naslov:Materials
Založnik:MDPI
ISSN:1996-1944
COBISS.SI-ID:33588485 Povezava se odpre v novem oknu

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Številka projekta:P2-0185; J2-9196

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:31.05.2021

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:beton, nivo malte in paste v betonu, zgodnja starost, razvoj mikrostrukture, električna prevodnost, električna prevodnost, ultrazvočna metoda, standardni testi

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