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undergraduate thesis
Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu
završni rad
2017. urn:nbn:hr:167:826511
Ercegović, Matej
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Ercegović, M. (2017). Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:826511

Ercegović, Matej. "Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:167:826511

Ercegović, Matej. "Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:167:826511

Ercegović, M. (2017). 'Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 21 January 2025, https://urn.nsk.hr/urn:nbn:hr:167:826511

Ercegović M. Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2017 [cited 2025 January 21] Available at: https://urn.nsk.hr/urn:nbn:hr:167:826511

M. Ercegović, "Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:167:826511

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Metadata
TitlePriprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu : završni rad
Title (english)Cement preparation by using a laboratory ball mill with addition of grinding additive : bachelor thesis
AuthorMatej Ercegović
MentorDražan Jozić (mentor)
Committee memberPero Dabić (predsjednik povjerenstva)
Committee memberMatko Erceg (član povjerenstva)
Committee memberDražan Jozić (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2017-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U radu je istraživan utjecaj aditiva za poboljšanje meljivosti klinkera trgovačkom naziva HEA 213 Grace ili HEA2® proizvođača GCP Applied Technologies Inc., cement je pripravljan korištenjem poluindustrijskog kugličnog mlina kapaciteta 6 kg, u laboratoriju CEMEX Hrvatska d.d. Tijela za mljevenje u kugličnom mlinu su čelične kugle težine 69,48 kg. Proces mljevenja proveden je pri brzini rotacije mlina od 50 min -1 u trajanju od 40-55 minuta. U fazi priprave smjese za mljevenje koja čini klinker i gips dodan je aditiv za mljevenje u masenom iznosu od 0; 0,017; 0,032 i 0,048 mas.% na masu cementa. Efikasnost procesa mljevenja praćena je preko vremena potrebnog za postizanje specifične površine cementa iznad 3400 cm 2 /g. Rezultati ukazuju da dodatak aditiva ispod 0,032 mas.% nemaju značajniji utjecaj na skraćenje vremena mljevenja da bi se postigla željena vrijednost specifične površine cementa. Optimalan dodatak aditiva za meljavu je u iznosu od 0,032 mas.% na masu cementa gdje je uočeno kraće vrijeme potrebno za postizanje željene vrijednosti specifične površine čak za 9% u odnosu na smjesu bez dodatka aditiva za meljavu.
Abstract (english)
In this paper analyzes the effect of additives for improving the clinker milling by using the additive on the market available under trade name HEA 213 Grace or the HEA2® manufacturer of GCP Applied Technologies Inc. Cement has been prepared in a semi-industrial ball mill with a capacity of 6 kg, at the laboratory of CEMEX Hrvatska d.d.. The ball mill was filled by 69.48 kg a steel ball. The milling process was carried out at 50 rpm rotation of mill, with the duration of 40-55 minutes. In the step of preparing the mixture for milling which is used clinker and gypsum, a grinding additive has been added in the amount of 0, 0.017, 0.032 and 0.048% by weight of cement mass. Efficiency of the milling process is monitored over the time required to achieve a specific surface area above 3400 cm2/g. The results indicate that addition additives for improving milling below 0.032% by weight of cement doesn’t have a significant effect on shortening the milling time to achieve the desired value of the specific surface of the cement. Optimal addition of additive for milling into the cement mixture was in the amount of 0.032 mass.% on the cement mass, in this mixture was observed that time for achieving desired specific surface of cement was shorter up to 9% relative to the mixture without the addition of milling additive.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:826511
Study programmeTitle: Chemical Technology; specializations in: Chemical Technology and Materials, Food Technology
Course: Chemical Technology and Materials
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni/a pristupnik/pristupnica kemijskog inženjerstva (stručni/a pristupnik/pristupnica kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteKljučne riječi doradio knjižničar/ Key words are revised by the librarian
Created on2018-03-14 11:46:55