Electrohydraulic shock wave generation as a means to increase intrinsic permeability of mortar

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Cement and Concrete Research

DOI:https://doi.org/10.1016/j.cemconres.2010.07.005· OSTI ID:21483636

Maurel, O ^[1]; Reess, T ^[2]; Matallah, M ^[3]; De Ferron, A ^[2]; Chen, W; La Borderie, C ^[1]; Pijaudier-Cabot, G ^[4]; Jacques, A; Rey-Bethbeder, F ^[5]

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1. Laboratoire de Sciences Appliquees au Genie Civil et Cotier (LaSAGEC), Universite de Pau, Allee du Parc Montaury, 64600 Anglet (France)
2. Laboratoire de Genie Electrique, Universite de Pau, Helioparc Pau-Pyrenees, 2 Avenue du President Angot, 64053 PAU CEDEX 9 (France)
3. RISAM (RISk Assesment and Management), Universite de Tlemcen, BP230 (Algeria)
4. Laboratoire des Fluides Complexes, Universite de Pau, BP 1155, 64013 Pau Cedex (France)
5. Total, CSTJF, Avenue Larribau, 64018 Pau Cedex (France)

This article discusses the influence of compressive shock waves on the permeability of cementitious materials. Shock waves are generated in water by Pulsed Arc Electrohydraulic Discharges (PAED). The practical aim is to increase the intrinsic permeability of the specimens. The maximum pressure amplitude of the shock wave is 250 MPa. It generates damage in the specimens and the evolution of damage is correlated with the intrinsic permeability of the mortar. A threshold of pressure is observed. From this threshold, the increase of permeability is linear in a semi-log plot. The influence of repeated shocks on permeability is also discussed. Qualitative X Ray Tomography illustrates the evolution of the microstructure of the material leading to the increase of permeability. Comparative results from mercury intrusion porosimetry (MIP) show that the micro-structural damage process starts at the sub-micrometric level and that the characteristic size of pores of growing volume increases.

• OSTI ID: 21483636
• Journal Information: Cement and Concrete Research, Vol. 40, Issue 12; Other Information: DOI: 10.1016/j.cemconres.2010.07.005; PII: S0008-8846(10)00176-6; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0008-8846
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
EVOLUTION
MECHANICAL PROPERTIES
MERCURY
MICROSTRUCTURE
MORTARS
PERMEABILITY
PRESSURE RANGE MEGA PA 100-1000
SHOCK WAVES
TOMOGRAPHY
WATER
X RADIATION
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
ELEMENTS
HYDROGEN COMPOUNDS
IONIZING RADIATIONS
METALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE RANGE
PRESSURE RANGE MEGA PA
RADIATIONS