Published October 2003 | Version v1
Journal article Metadata-only

Evolution of porosity in a Portland cement paste studied through positron annihilation lifetime spectroscopy

Creators

Description

Positron annihilation lifetime spectroscopy experiments were carried out in an ordinary Portland cement paste characterized by a water-to-cement ratio w/c=0.8, in order to monitor the porosity of the paste. It was found that ortho-positronium intensity is a suitable quantity to this purpose, being sensitive to the amount of water contained in the pores. The experimental data show good agreement with the porosity calculated according to the Powers' thin filmsodel

Additional details

Identifiers

DOI
10.1016/S0969-806X(03)00221-4;
arXiv
arXiv:hep-ph/9712210v1;
PII
S0969806X03002214;

Publishing Information

Journal Title
Radiation Physics and Chemistry (1993)
Journal Volume
68
Journal Issue
3-4
Journal Page Range
p. 519-521
ISSN
0969-806X
CODEN
RPCHDM

Conference

Title
7. international conference on positron and positronium chemistry
Dates
7-12 Jul 2002
Place
Knoxville, TN (United States)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
Israel
INIS RN
35028726
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNIHILATION; LIFETIME; MOISTURE; POROSITY; PORTLAND CEMENT; POSITRONIUM; POSITRONS; SPECTROSCOPY
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BUILDING MATERIALS; CEMENTS; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; LEPTONS; MATERIALS; MATTER; PARTICLE INTERACTIONS

Optional Information

Copyright
Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.