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Vol 13, Issue 1, 2021
Pages: 181 - 184
Professional paper
Nonmetallic materials
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Published: 28.05.2021. Professional paper Nonmetallic materials

INVESTIGATION THE POSSIBILITY OF POZZOLANIC CEMENT CEM IV 42,5N PRODUCTION IN CEMENT PLANT KAKANJ

By
Nevzet Merdić ,
Nevzet Merdić
Contact Nevzet Merdić

Kakanj cement plant

Nedžad Haračić ,
Nedžad Haračić

Kakanj cement plant

Kakanj cement plant

Ilhan Bušatlić ,
Ilhan Bušatlić

University of Zenica , Zenica , Bosnia and Herzegovina

Nadira Bušatlić ,
Nadira Bušatlić

University of Zenica , Zenica , Bosnia and Herzegovina

Amna Karić
Amna Karić

University of Zenica , Zenica , Bosnia and Herzegovina

Abstract

This paper presents an experimental study to evaluate the possibility of CEM IV 42,5N producing by increasing the specific cement surface from 3180 to 3850 cm2 /g. In this paper, fly ash is used as a cement admixture because fly ash possesses both hydraulic and pozzolanic properties. If one part of the clinker, as a major cement admixture, is replaced with a certain amount of fly ash, the preexisting deposit of fly ash is reduced, which can eventually give cheaper cement. Also, using more fly ash would reduce the emmision of CO2 into the atmosphere. Of course, in order to produce such pozzolanic cement, the requirements of EN 197-1 must be satisfied. Test results show that by increasing the specific surface of cement, the compressive strength of cement which meets the requirements for 42.5N class cement is also increased. 

References

1.
BAS EN 197-1, Cement – Dio 1: Sastav, specifikacija i kriteriji usklađenosti za obične cemente.
2.
Merdić N. Razvoj nove klase portland-kompozitnih cemenata u tvornici Cementa Kakanj, doktorska disertacija, Univerzitet u Zenici, Fakultet za metalurgiju i materijale u Zenici. 2015;
3.
Heidelberg technology center, Clinker mineralogy and cement chemistry. 2012;
4.
Rachel J, Detwiler JIB, Bhattacharja S. Supplementary cementing materials for use in blended cements, Portland cement association, research and development bulletin RD112T. 1996;

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