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University of Zenica , Zenica , Bosnia and Herzegovina
Faculty of Engineering and Natural Sciences, University of Zenica , Zenica , Bosnia and Herzegovina
Faculty of Engineering and Natural Sciences, University of Zenica , Zenica , Bosnia and Herzegovina
Institute "Kemal Kapetanović" in Zenica, University of Zenica , Zenica , Bosnia and Herzegovina
Eurofins BioPharma Product Testing (DACH) , Planegg, Bayern , Germany
Heidelberg Materials Cement BiH d.d. Kakanj , Kakanj , Bosnia and Herzegovina
The strength development of concrete containing ground granulated blast-furnace slag (GGBS), a
by-product of iron in blast-furnace, as a partial substitute for cement,was experimentally studied.
Levels of replacement of cement by slag were 12.5 %, 25 %, 37.5 %, and 50 % by weight of
cement. Slag taken immediately after it was discharged from the blast furnace was used.Tests
performed on concrete samples include consistency, air content, compressive strength, flexural
strength, and dynamic modulus of elasticity. It was found that the addition of GGBSleads to a
significant increase in the consistency of fresh concrete, a decrease in early compressive strengths
and flexural strengths, as well as dynamic modulus of elasticity. At a later age, the replacement of
cement with slag resulted in increasing both the modulus and strength of concrete.
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