Evaluation of the grindability of recycled glass in the production of blended cements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F16%3A00111289" target="_blank" >RIV/00216224:14310/16:00111289 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/16:PU116752

Výsledek na webu

<a href="http://mit.imt.si/Revija/izvodi/mit165/dvorak_k.pdf" target="_blank" >http://mit.imt.si/Revija/izvodi/mit165/dvorak_k.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17222/mit.2015.184" target="_blank" >10.17222/mit.2015.184</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of the grindability of recycled glass in the production of blended cements

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Evaluation of the grindability of recycled glass in the production of blended cements

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MATERIALI IN TEHNOLOGIJE

ISSN

1580-2949

e-ISSN

1580-3414

Svazek periodika

50

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

SI - Slovinská republika

Počet stran výsledku

6

Strana od-do

729-734

Kód UT WoS článku

000386195300016

EID výsledku v databázi Scopus

2-s2.0-84992035132