Naslov
INFLUENCE OF ADDITION OF GGBFS ON MECHANICAL PROPERTIES OF CEMENT MORTARS

Autori
Dražan, Jozić ; Andrija, Petrovića ; Goran, Baloević ; Branimir, Ljubičić

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

Izvornik
MATRIB2018 / Mateja Šnajdar Musa, Matija Sakoman - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2018, 98-112

Skup
International Conference Materials, Tribology., Recycling (MATRIB 2018)

Mjesto i datum
Korčula, Hrvatska; Vela Luka, Hrvatska, 27.06.2018. - 29.06.2018

Vrsta sudjelovanja
Ostalo

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cement, Mortar, Superplasticizer, Granulated blast furnance slag, XRD

Sažetak
Granulated blast-furnace slag (GBFS) is byproduct in the factory for iron production where it is produced by quenching molten iron slag in the water or steam. This study has goal to determine the effect of ground-granulated blast-furnace slag (GGBFS) used as replacement addition (0-40 mass %) to the Ordinary Portland cement (OPC) (type CEM I 42, 5R) on the setting time and on the development of compressive strength in the system of cement mortars. In this study OPC were produced at the semi- industrial ball mill. Raw materials OPC and GGBFS were analyzed by using XRF, XRD and microscopy. In the purpose to determine the influence of GGBFS, cement paste and mortars were prepared with replacement addition of GGBFS in the amounts of 5, 15, 20, 25, 30 and 40 mass %. Samples of the cements mortar were kept in a thermostated water at 20 ± 1°C in the period of the 3, 7, 14, 28, 70 and 90 days of hydration. The results show that the role of the GGBFS into cement paste depends on its content. Used super plasticizing admixture in preparation of the mortars has a role of water reduction agent and it significantly influences an increase in the developed compressive strength. In the system of the prepared mortar after 70 days of hydration, even the system with 40 mass % of replacement addition of GGBFS shows higher value of the developed compressive strength relative to the reference mortar.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Kemijsko inženjerstvo

POVEZANOST RADA