DVOŘÁK, Karel, Dušan DOLÁK, Dalibor VŠIANSKÝ a Petr DOBROVOLNÝ. Evaluation of the grindability of recycled glass in the production of blended cements. MATERIALI IN TEHNOLOGIJE. Ljubljana: INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE, 2016, roč. 50, č. 5, s. 729-734. ISSN 1580-2949. Dostupné z: https://dx.doi.org/10.17222/mit.2015.184.
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Základní údaje
Originální název Evaluation of the grindability of recycled glass in the production of blended cements
Autoři DVOŘÁK, Karel (203 Česká republika), Dušan DOLÁK (203 Česká republika, garant), Dalibor VŠIANSKÝ (203 Česká republika, domácí) a Petr DOBROVOLNÝ.
Vydání MATERIALI IN TEHNOLOGIJE, Ljubljana, INST ZA KOVINSKE MATERIALE I IN TEHNOLOGIE, 2016, 1580-2949.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 20500 2.5 Materials engineering
Stát vydavatele Slovinsko
Utajení není předmětem státního či obchodního tajemství
WWW Full Text
Impakt faktor Impact factor: 0.436
Kód RIV RIV/00216224:14310/16:00111289
Organizační jednotka Přírodovědecká fakulta
Doi http://dx.doi.org/10.17222/mit.2015.184
UT WoS 000386195300016
Klíčová slova anglicky grindability; Portland clinker; recycled glass
Štítky rivok
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnila: Mgr. Marie Šípková, DiS., učo 437722. Změněno: 11. 5. 2020 10:10.
Anotace
The replacement of primary raw materials in cement production is a current topic. Potentially usable raw materials include recycled glass. The disadvantage of glass is its tendency to aggregate. The conventional method for the production of blended cement is separate grinding and then homogenizing the components. However, in this case aggregated fine glass in the cement composites acts only physically and mechanically as a filler rather than as an active pozzolan. An interesting option to prevent the formation of aggregates formed from glass is co-grinding. This procedure is not very common in practice. Various ingredients of blended cements have widely different grindabilities, and it is therefore better to grind them separately. The aim is to compare the co-grinding and separate grinding of a combination of Portland clinker and recycled glass. The grindability was tested on clinker, glass, and blended cements prepared by co-grinding and by separate grinding. The results of the experiment show that by co-grinding the components of blended cement with the addition of 20 % of recycled glass as a pozzolan, a synergy effect caused by the various mechanical properties of the components occurs. The aggregation of grains is less significant than during separate grinding and it leads to a better grinding effect. This knowledge can by utilized in the design and processing of new blended cements. Also, co-milling the glass-cement system can eliminate the stage of homogenization, and, therefore save energy.
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