The equivalent pore pressure and the swelling and shrinkage of cement-based materials

Title: The equivalent pore pressure and the swelling and shrinkage of cement-based materials
Author(s): O. Coussy, P. Dangla, T. Lassabatère, V. Baroghel-Bouny
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 37
Issue: 265
Issue date: 2004-01-01
Publication year: 2004
Pages: 15 - 20
Total Pages: 6
Nb references: 23
Language: English

Abstract: We revisit the approach to the drying shrinkage of cement-based materials using Poromechanics of nonsaturated materials.
It is in particular shown that the equivalent pore pressure concept, by opposition to the averaged pore pressure, can account for the surface energy effect upon the drying shrinkage.
Experimental evidence shows that the influence of the latter reveals to be essential for intermediary values of the relative humidity since the contribution of the interfacial energy significantly increases as the relative humidity is reduced.

Online publication: 2003-11-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/14080