Naslov
Evolution of C-S-H phase in ordinary Portland cement studied by Raman spectroscopy

Autori
Mohaček Grošev, Vlasta ; Đuroković, Marija ; Škrabić, Marko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Solid State Science & Research Meeting Zagreb 27.-29. 06.2019. Book of Abstracts / Biliškov, Nikola - Zagreb : Institut Ruđer Bošković, 2019, 95-95

ISBN
9789537941321

Skup
Solid State Science and Research Meeting

Mjesto i datum
Zagreb, Hrvatska, 27.06.2019. - 29.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cement hydration ; C-S-H gel ; Raman spectroscopy ; alite ; belite ; phonon calculation

Sažetak
After examining dry clinker with optical and atomic force microscopy and Raman spectroscopy, a wet cement paste was prepared from Portland cement powder and water with the water/cement mass ratio of ½. In a series of chemical reactions which followed, new chemical species were produced and the cement paste’s composition monitored every day during the first week and after four weeks (28th day) using both 532 nm and 1064 nm lasers as an excitation sources. The observed bands were interpreted using an ab initio phonon calculation for starting alite C3S and belite C2S crystal phases [1-3]. [1] W. G. Mumme, Neues Yahrb. Mineral. H 4 (1995) 145. [2] C. K. H. Jost, B. Ziemer, R. Seydel Acta Crystal. B33 (1977) 1696. [3] R. Dovesi, R. Orlando, B. Civalleri, C. Roetti, V. R. Saunders, C. M. Zicovich-Wilson, CRYSTAL: a Computational Tool for the AbInitio Study of the Electronic Properties of Crystals. Z. Kristallogr. Cryst. Mater. 220 (2005) 571

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

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