Use of pulsating water jet technology for removal of concrete in repair of concrete structures

0370347 - ÚGN 2012 RIV LT eng J - Journal Article
Sitek, Libor - Foldyna, Josef - Martinec, Petr - Ščučka, Jiří - Bodnárová, L. - Hela, R.
Use of pulsating water jet technology for removal of concrete in repair of concrete structures.
Baltic Journal of Road and Bridge Engineering. Roč. 6, č. 4 (2011), s. 235-242. ISSN 1822-427X. E-ISSN 1822-4288
R&D Projects: GA ČR GA103/07/1662; GA ČR GP101/07/P512; GA AV ČR 1QS300860501; GA MŠMT ED2.1.00/03.0082
Grant - others:GA MPO(CZ) FR-TI2/390
Program: FR
Institutional research plan: CEZ:AV0Z30860518
Keywords : high-speed water jet technology * pulsating jet * rotating jets * removal of concrete layer
Subject RIV: JQ - Machines ; Tools
Impact factor: 1.610, year: 2011
http://www.bjrbe.vgtu.lt/volumes/en/volume6/number4/03.php

High-speed water jet technology is commonly used for removing degraded concrete surface layers selectively in the process of repair of concrete structures. This technology offers number of advantages (such as reduced noise, dust and vibrations, preservation of intact material and thus more delicate intervention into the structure), but it still requires further improvement in terms of productivity and cost effectiveness to be even more competitive to traditional methods of concrete surface layers removal. The impact of a high-velocity liquid drop or bunch of water on a rigid surface generates extremely short high-pressure transients that can cause substantially serious damage to the surface and interior of the solid material.
Permanent Link: http://hdl.handle.net/11104/0204180