Naslov
The effect of harmful zeolite waste as replacement addition to cement on hydration and properties of hardened cement composites

Autori
Krolo, Petar ; Dabić, Pero ; Barbir, Damir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the first Croatian Symposium on Zeolites / Bronić, Josip ; Trgo, Marina ; Hrenović, Jasna ; Margeta, Karmen - Zagreb : Hrvatska zeolitna udruga (HZU), 2008, 75-79

ISBN
978-953-55373-0-4

Skup
1th croatian symposium on zeolites

Mjesto i datum
Split, Hrvatska, 26.09.2008. - 27.09.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
natural zeolite ; cement hydration ; microcalorimetry ; hydration kinetic ; replacement addition

Sažetak
This study presents the effect of harmful zeolite waste, containing Zn2+ ions, as replacement addition to cement on cement hydration and properties of hardened cement composites. The measurements were performed by determining the thermal effects of hydration reactions by means of differential microcalorimetry, and by determining the compressive and flexural strength of hardened cement composites. The samples were mixtures of cement + harmful zeolite addition + water, with the constant content of a plasticizer additive. The results obtained indicate that the harmful zeolite waste does not affect the basic hydration mechanism, but it does modify the kinetics of hydration processes, while the strength indicates the effect of the quantity of the replacement addition in the reaction system, and the pozzolanic effects themselves. The results obtained can be used to draw conclusions about the maximum amounts of replacement addition that may be added to the reaction system without endangering the possible binding properties of cement composites for practical use.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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