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1Author    N. Ikolaus, N. Estlea, PetrikG. Alvosas3, Christian Zimmermannb, Marwan Dakkourib, Jörg Kärger3Requires cookie*
 Title    Nuclear Spin Relaxation and Water Self-diffusion in Hardening Magnesium Oxychloride Cement  
 Abstract    In this contribution, we report the results of NMR studies of the behaviour of water in a hydrating Sorel cement paste with a composition close to the stoichiometric optimum. Both the transverse spin-relaxation behaviour and water self-diffusion were studied in two separate experiments performed on samples on the basis of the same formulation. While there is a very strong initial decrease in the transverse relaxation time of the water in the paste, the diffusion coefficient is found to decrease mainly at later times of the hydration process where the decrease of the transverse relaxation time has already strongly slowed down. After about 6 h of the hardening process, the signal intensity available for a pulsed gradient diffusometry experiment is not sufficient any more for reliable measurements of the diffusion coefficients. 
  Reference    Z. Naturforsch. 56a, 561—564 (2001); received May 18 2001 
  Published    2001 
  Keywords    Oxychloride Cement, Diffusion, Magnetic Resonance 
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 TEI-XML for    default:Reihe_A/56/ZNA-2001-56a-0561.pdf 
 Identifier    ZNA-2001-56a-0561 
 Volume    56