Application of 1H NMR in the hydration monitoring of lime-pozzolan mortars

Title: Application of 1H NMR in the hydration monitoring of lime-pozzolan mortars
Author(s): M. Tziotziou, E. Karakosta, I. Karatasios, M. Fardis, P. Maravelaki-Kalaitzaki, G. Papavassiliou, V. Kilikoglou
Paper category : conference
Book title: 2nd Conference on Historic Mortars - HMC 2010 and RILEM TC 203-RHM final workshop
Editor(s): J. Válek, C. Groot and J.J. Hughes
Print-ISBN: None
e-ISBN: 978-2-35158-112-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 547 - 554
Total Pages: 8
Nb references: 23
Language: English

Abstract: The micro-structural evolution of a lime - pozzolan system, during hydration, was studied by 1H Nuclear Magnetic Resonance (NMR). The hydration process was monitored for a period of one year by 1H NMR spin-lattice relaxation measurements, performed in a portable magnet. The development of the hydration was also examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), mercury intrusion porosimetry (MIP), infrared spectroscopy (FT-IR) and thermal analysis (DTA/TG) and compared with the NMR results. The results indicated that 1H NMR provides valuable information on the hydration process of lime-pozzolan mortars in a non-invasive way, as it was possible to monitor the development of the hydration phases through the resulted microstructure, in realtime.

Online publication: 2010-10-25
Publication type : full_text
Public price (Euros): 0.00