Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu

Ercegović, Matej

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undergraduate thesis

Priprava cementa na laboratorijskom kugličnom mlinu s dodatkom aditiva za meljavu

završni rad

Split: University of Split, Faculty of Chemistry and Technology, 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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APA 6th Edition

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

MLA 8th Edition

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

Chicago 17th Edition

Harvard

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 18 April 2024, https://urn.nsk.hr/urn:nbn:hr:167:826511

Vancouver

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 2024 April 18] Available at: https://urn.nsk.hr/urn:nbn:hr:167:826511

IEEE

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

Cite this item: https://urn.nsk.hr/urn:nbn:hr:167:826511

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Metadata

Title	Priprava 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
Author	Matej Ercegović
Mentor	Dražan Jozić (mentor)
Committee member	Pero Dabić (predsjednik povjerenstva)
Committee member	Matko Erceg (član povjerenstva)
Committee member	Dražan Jozić (član povjerenstva)
Granter	University of Split Faculty of Chemistry and Technology (Division of Engineering and Chemistry) Split
Defense date and country	2017-09-27, 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)
Language	croatian
URN:NBN	urn:nbn:hr:167:826511
Study programme	Title: 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 resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Public note	Ključne riječi doradio knjižničar/ Key words are revised by the librarian
Repository	Repository of the Faculty of chemistry and technology
Created on	2018-03-14 11:46:55

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