<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The paper discusses the background and results of research focused on the action of a high-speed water jet on concrete with different qualities. The sufficient and careful removal of degraded concrete layers is very important for the renovation of concrete structures. High-speed water jet technology is one of the most common methods used for removing degraded concrete layers. Different types of high-speed water jets were tested in the experimental part. The classical technology of a single continuous water jet generated with one nozzle was tested as well as the technology of revolving water jets generated by multiple nozzles (used mainly for the renovation of larger areas). A continuous flat water jet and pulsating flat water jet were tested the first time, because the connection of a water jet with the acoustic generator of a pulsating jet offers new possibilities for the use of a water jet (see [1] and [2]). A water jet with such a modification is capable of efficient action and can even be used for cutting solid concrete with a relatively low consumption of energy. A flat pulsating water jet which can be newly used for renovation seems to be a promising technology.</p></abstract>

The paper discusses the background and results of research focused on the action of a high-speed water jet on concrete with different qualities. The sufficient and careful removal of degraded concrete layers is very important for the renovation of concrete structures. High-speed water jet technology is one of the most common methods used for removing degraded concrete layers. Different types of high-speed water jets were tested in the experimental part. The classical technology of a single continuous water jet generated with one nozzle was tested as well as the technology of revolving water jets generated by multiple nozzles (used mainly for the renovation of larger areas). A continuous flat water jet and pulsating flat water jet were tested the first time, because the connection of a water jet with the acoustic generator of a pulsating jet offers new possibilities for the use of a water jet (see [1] and [2]). A water jet with such a modification is capable of efficient action and can even be used for cutting solid concrete with a relatively low consumption of energy. A flat pulsating water jet which can be newly used for renovation seems to be a promising technology.

New potentional of high-speed water jet technology for renovating concrete structures

Institute of Geonics, Academy of Sciences, v.v.i. Ostrava, Studentska 1768, Ostrava - Poruba, Czech Republic

Slovak Journal of Civil Engineering

The paper discusses the background and results of research focused on the action of a high-speed water jet on concrete with different qualities. The sufficient...

New potentional of high-speed water jet technology for renovating concrete structures

Published Online: Jul 11, 2011

Page range: 1 - 7

DOI: https://doi.org/10.2478/v10189-011-0006-z

Keywords
High-speed water jet technology, concrete repair, degraded concrete, single continuous water jet, nozzle, continuous flat water jet, pulsating flat water jet

This content is open access.

New potentional of high-speed water jet technology for renovating concrete structures

Published Online: Jul 11, 2011

Page range: 1 - 7

DOI: https://doi.org/10.2478/v10189-011-0006-z

KeywordsHigh-speed water jet technology, concrete repair, degraded concrete, single continuous water jet, nozzle, continuous flat water jet, pulsating flat water jet

This content is open access.

Keywords
High-speed water jet technology, concrete repair, degraded concrete, single continuous water jet, nozzle, continuous flat water jet, pulsating flat water jet