prikaz prve stranice dokumenta Alkali-activated fly ash concrete : concrete without cement
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Scientific paper - Preliminary note / Short communication
Alkali-activated fly ash concrete : concrete without cement
Tehnički vjesnik, 18 (2011), 1; 99-102. urn:nbn:hr:133:860542
Mikoč, Miroslav; Bjelobrk, Ivan; Korajac, Josip

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Mikoč, M., Bjelobrk, I. & Korajac, J. (2011). Alkali-activated fly ash concrete : concrete without cement. Tehnički vjesnik, 18. (1), 99-102. Retrieved from https://urn.nsk.hr/urn:nbn:hr:133:860542

Mikoč, Miroslav, et al. "Alkali-activated fly ash concrete : concrete without cement." Tehnički vjesnik, vol. 18, no. 1, 2011, pp. 99-102. https://urn.nsk.hr/urn:nbn:hr:133:860542

Mikoč, Miroslav, Ivan Bjelobrk and Josip Korajac. "Alkali-activated fly ash concrete : concrete without cement." Tehnički vjesnik 18, no. 1 (2011): 99-102. https://urn.nsk.hr/urn:nbn:hr:133:860542

Mikoč, M., Bjelobrk, I. and Korajac, J. (2011) 'Alkali-activated fly ash concrete : concrete without cement', Tehnički vjesnik, 18(1), pp. 99-102. Available at: https://urn.nsk.hr/urn:nbn:hr:133:860542 (Accessed 07 November 2024)

Mikoč M, Bjelobrk I, Korajac J. Alkali-activated fly ash concrete : concrete without cement. Tehnički vjesnik [Internet]. 2011 March [cited 2024 November 07];18(1):99-102. Available at: https://urn.nsk.hr/urn:nbn:hr:133:860542

M. Mikoč, I. Bjelobrk and J. Korajac, "Alkali-activated fly ash concrete : concrete without cement", Tehnički vjesnik, vol. 18, no. 1, pp. 99-102, March 2011. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:133:860542. [Accessed: 07 November 2024]

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Metadata
Title (english)Alkali-activated fly ash concrete : concrete without cement
Title (croatian)Beton od alkalijski aktiviranog elektrofiltarskog pepela : beton bez cementa
AuthorMiroslav Mikoč
AuthorIvan Bjelobrk
AuthorJosip Korajac
Author's institutionJosip Juraj Strossmayer University of Osijek
Faculty of Civil Engineering and Architecture Osijek
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Abstract (english)
In this work, alkali-activated fly ash was used as a binder instead of Portland cement at the preparation of concrete. Sodium hydroxide and water glass were used as alkali activators. Fractions of natural aggregate of 0-4 mm, 4-8 mm and 8-16 mm were replaced by air-cooled granulated steel slag fraction of 4-8 mm and 8- 16 mm and the fraction of river sand was replaced with silica fume. The obtained samples were cured at 2 different temperatures. The first was cured at room temperature and the other was steam-cured for 8 hours and left at room temperature until the tested date. The compressive strength test was investigated by using cube samples 150 ×150 ×150 mm after 3 and 28 days. The results of the present work have shown that low-calcium fly ash-based geopolymer concrete can substitute the use of Portland cement in concrete.
Abstract (croatian)
U ovom radu pri pripremi betona kao vezivo umjesto portland cementa korišten je alkalijski aktiviran elektrofiltarski pepeo. Kao alkalijski aktivatori korišteni su vodeno staklo i natrijev hidroksid. Frakcije prirodnog agregata od 0-4 mm, 4-8 mm i 8-16 mm zamijenjene su frakcijama zrakom hlađene granulirane šljake od 4-8 mm i 8-16 mm, a frakcija pijeska zamijenjena je s amorfnom SiO2 prašinom. Dobiveni uzorci sušeni su na dvije različite temperature. Prvi su sušeni na sobnoj temperaturi a drugi su zaparivani 8 sati i zatim sušeni na sobnoj temperaturi do ispitivanja. Tlačna čvrstoća dobivenih uzoraka ispitana je na kockama 150 ×150 ×150 mm nakon 3 i 28 dana. Dobiveni rezultati su pokazali da geopolimerni beton dobiven alkalijskom aktivacijom elektrofiltarskog pepela može zamijeniti portland cement u betonu.
Keywords (english)
Keywords (croatian)
Languageenglish
Publication typeScientific paper - Preliminary note / Short communication
Publication statusPublished
Peer reviewPeer review
Publication versionPublished version
Journal titleTehnički vjesnik
Numberingvol. 18, no. 1, pp. 99-102
p-ISSN1330-3651
e-ISSN1848-6339
URN:NBNurn:nbn:hr:133:860542
Publication2011-03
Document URLhttps://hrcak.srce.hr/65933
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Created on2018-02-05 09:17:57