Počet záznamů: 1

Comprehensive study on mechanical properties of lime-based pastes with additions of metakaolin and brick dust

SYSNO ASEP	0429333
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Comprehensive study on mechanical properties of lime-based pastes with additions of metakaolin and brick dust
Tvůrce(i)	Nežerka, V. (CZ) Slížková, Zuzana (UTAM-F)_{RID, SAI, ORCID} Tesárek, P. (CZ) Plachý, T. (CZ) Frankeová, Dita (UTAM-F)_{RID, SAI, ORCID} Petráňová, Veronika (UTAM-F)_{RID, SAI}
Celkový počet autorů	6
Zdroj.dok.	Cement and Concrete Research. - : Elsevier - ISSN 0008-8846 Roč. 64, October (2014), s. 17-29
Poč.str.	13 s.
Forma vydání	Tištěná - P
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	microstructure ; mechanical properties ; CaO ; metakaolin ; brick dust
Vědní obor RIV	AL - Umění, architektura, kulturní dědictví
CEP	DF11P01OVV008 GA MK - Ministerstvo kultury
UT WOS	000340304500003
EID SCOPUS	84903988153
DOI	10.1016/j.cemconres.2014.06.006
Anotace	In order to understand the behavior of lime-based mortars, and to identify the influence of pozzolans, it is important to investigate the microstructure and properties of lime-based pastes without any aggregates. In our work, nine different sets of pastes with additions of metakaolin and brick dust were studied. The chemical composition and microstructure were investigated by means of TGA, SEM–BSE microscopy and EDX analysis. The mechanical strength and fracture properties were determined from destructive tests, while the evolution of the Young's modulus was monitored using the resonance method. The study revealed that metakaolin exhibits much stronger pozzolanic activity than brick dust, and that the mechanical properties of pastes are not necessarily enhanced by the addition of pozzolans. However, the shrinkage reduction should result in the elimination of cracking around aggregates in mortars. These information contribute to better understanding of lime-based mortars and are essential for their proper modeling and design.
Pracoviště	Ústav teoretické a aplikované mechaniky
Kontakt	Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285
Rok sběru	2015
Elektronická adresa	https://doi.org/10.1016/j.cemconres.2014.06.006

Počet záznamů: 1