High - velocity water jet impact on concrete samples

0339297 - ÚGN 2010 RIV GR eng J - Journal Article
Mádr, V. - Uhlář, R. - Hlaváč, L. M. - Sitek, Libor - Foldyna, Josef - Hela, R. - Bodnárová, L. - Kaličinský, J.
High - velocity water jet impact on concrete samples.
Acta Technica Corviniensis - Bulletin of Engineering. Roč. 2, č. 4 (2009), s. 43-48. ISSN 2067-3809
Institutional research plan: CEZ:AV0Z30860518
Keywords : water jet * concrete * depth of penetration * disintegration volume
Subject RIV: JM - Building Engineering
http://acta.fih.upt.ro/pdf/2009-4/ACTA-2009-4-08.pdf

The concrete samples with various erosion states were disintegrated inside the overpressure vessel using high-velocity water jet and depth of penetration was measured. Removing of the eroded parts of samples was also tested using low-pressure generated continuous or pulsing fan jets and rotating jets. The influence of the erosion states, water jet techniques, traverse rate and stand-off distance on the disintegration volume was studied and the surface topography was investigated. The high-pressure generated continuous water jet was applied in the overpressure vessel used for simulation of pressures equivalent to the submersion to several depths under the water level. The low-pressure generated continuous or pulsing jets were applied in air conditions. Some samples of special decorative concretes were also studied.
Permanent Link: http://hdl.handle.net/11104/0182866