Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. A reassessment of mercury intrusion porosimetry by comparison with H-1 NMR relaxometry
 
research article

A reassessment of mercury intrusion porosimetry by comparison with H-1 NMR relaxometry

Muller, A. C. A.
•
Scrivener, K. L.  
2017
Cement and Concrete Research

This paper shows how MIP measurements can give an accurate picture of the capillary porosity of cement pastes. Regions of the intrusion curves can be identified corresponding to capillary or gel pores. The amount of capillary pores is in excellent agreement with the values measured by Muller et al. [Densification of C-S-H measured by H-1 NMR relaxometry, J. Phys. Chem. C. 117, 2013; Use of bench-top NMR to measure the density, composition and desorption isotherm of C-S-H in cement paste, Micro. Meso. Mater 178, 2013] in H-1 NMR studies of similar mixes studied in undried conditions. Our investigations on the different drying methods indicate that only the solvent exchange method adequately preserves the sample porosity. The quantitative MIP analysis shows that MIP measures, for the mixes studied, all capillary pores and, in some cases, a small fraction of C-S-H gel pores. Comparison of pore sizes between MIP and H-1 NMR indicates that a contact angle of 140 degrees usually used in the Washburn equation is most likely overestimated. We suggest that a more appropriate contact angle is 120 degrees.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.cemconres.2017.05.024
Web of Science ID

WOS:000411547800031

Author(s)
Muller, A. C. A.
Scrivener, K. L.  
Date Issued

2017

Publisher

Pergamon-Elsevier Science Ltd

Published in
Cement and Concrete Research
Volume

100

Start page

350

End page

360

Subjects

MIP

•

Capillary pores

•

C-S-H

•

Pore size

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMC  
Available on Infoscience
November 8, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/142037
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés