Monitoring the size evolution of capillary pores in cement paste during the early hydration via diffusion in internal gradients

Monitoring the size evolution of capillary pores in cement paste during the early hydration via... The internal gradients arise inside porous media due to the susceptibility contrast between the porous matrix and the confined liquid. They produce in the presence of diffusion phenomena an extra attenuation of the echo train signal in the Carr–Purcell–Meiboom–Gill (CPMG) experiment. In the present work we exploit this extra attenuation of the echo train to determine the pore size evolution of capillary pores in cement paste during the early age hydration. Thus, both the effects of the temperature and of a superplasticizer on the pore size evolution are investigated. It is observed a slight reduction in the size of capillary pores of cement paste by decreasing the temperature. However, no reduction of the pore size could be detected as result of introducing a superplasticizer and this can be due to the preparation approach of the sample. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Cement and Concrete Research Elsevier

Monitoring the size evolution of capillary pores in cement paste during the early hydration via diffusion in internal gradients

Loading next page...
 
/lp/elsevier/monitoring-the-size-evolution-of-capillary-pores-in-cement-paste-xDL6aeCIAV
Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0008-8846
D.O.I.
10.1016/j.cemconres.2015.07.004
Publisher site
See Article on Publisher Site

Abstract

The internal gradients arise inside porous media due to the susceptibility contrast between the porous matrix and the confined liquid. They produce in the presence of diffusion phenomena an extra attenuation of the echo train signal in the Carr–Purcell–Meiboom–Gill (CPMG) experiment. In the present work we exploit this extra attenuation of the echo train to determine the pore size evolution of capillary pores in cement paste during the early age hydration. Thus, both the effects of the temperature and of a superplasticizer on the pore size evolution are investigated. It is observed a slight reduction in the size of capillary pores of cement paste by decreasing the temperature. However, no reduction of the pore size could be detected as result of introducing a superplasticizer and this can be due to the preparation approach of the sample.

Journal

Cement and Concrete ResearchElsevier

Published: Nov 1, 2015

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off