Vol. 1, No 3, 1996 pp.
219 - 222
UDC
535.338
SOME CONTRIBUTION TO INVESTIGATION OF THE HYDRATION MECHANISMS
N. Popović1, L.A. Nasr2, Lj. Miljković1
1 Department of Physics, Faculty of Science, Ćirila i Metodija 2, 18000 Niš, Yugoslavia
2 Physics dept. University of Alexandria, Alexandria, Egypt
Abstract.
The spin grouping method is used to consider protons dynamics dur¬ing a hydration time of different cement type materials (different clinkers, with or without addings). NMR T1 methods are used for recording the nature of hy¬dration process. Multi-component analysis of magnitudes of proton spin-lattice relaxation time T1 yield dynamical information about the proton environment, i.e. the stage intervals, length of particular stages and their changes in time are determined. The results indicate a different structures of the new producing and forming materials and pores during the hydration.
DOPRINOS ISTRAŽIVANJU MEHANIZAMA HIDRATACIJE
Metodom spinskog grupisanja studirana je dinamika protona u toku hidratacije različitih cementnih materijala (različiti klinkeri sa i bez dodataka). Proces hidratacije je praćen NMR T1 metodama. Multi-komponentna analiza dobijenih vrednosti protonskog spin-mrežnog vremena relaksacije u funkciji vre¬mena hidratacije T1 daje dinamičku informaciju o protonskom okruženju, tj. o podeli na intervale, dužini pojedinih intervala i njihovoj vremenskoj evoluciji. Rezultati ukazuju na formiranje različitih struktura i pora materijala u toku procesa hidratacije.
