title: NMR relaxation of water in building materials during thermal cycling
metadata.name: dc.contributor.author
metadata.value: Adelson, Veronica Ya.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Chernyshev, Yuri S.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Frolov, Vyacheslav V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-01-05T12:29:37Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-01-05T12:29:37Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-09
metadata.lang: -
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu04.2016.301
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/5864
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: This article presents the results of the study of changes in the properties of porous ceramics
  and concrete under the influence of “freeze—thaw cycles” produced by employment of nuclear
  magnetic relaxation. The measurements of nuclear magnetic relaxation times T1 and T2 were
  performed on saturated water samples with 60 cycles of freezing using spin echo methods “CPMG”
  (T2) and “inversion — recovery of the equilibrium of nuclear magnetization” (T1). The results
  are interpreted assuming the two-exponential dependence of the magnetization on the time in
  the process of establishing equilibrium. A relation between periodic temperature effects and the
  change in the number of pores and their connectivity was found. To confirm the assumption of the absence of the effect of the paramagnetic ions on the relaxation process, an experiment with
  samples saturated with heavy water was carried out. Refs 9. Figs 8. Tables 2.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: Школа-конференция проведена при финансовой поддержке Российского фонда фундаментальных
  исследований (проект № 15-32-10480) и OOO «Брукер».
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Series 4. Physics. Chemistry;Vol. 3 (61); Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: NMR
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: relaxation
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: porous media
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: NMR relaxation of water in building materials during thermal cycling
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 01-Adelson.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/5864/1/01-Adelson.pdf
resources.format: Adobe PDF
resources.size: 448,9 kB