Publication detail

Comparison of continuous and pulsing water jets for repair actions on road and bridge concrete

HLAVÁČ, L. BODNÁROVÁ, L. JANUROVÁ, E. SITEK, L.

Original Title

Comparison of continuous and pulsing water jets for repair actions on road and bridge concrete

English Title

Comparison of continuous and pulsing water jets for repair actions on road and bridge concrete

Type

journal article - other

Language

en

Original Abstract

The concrete samples with various erosion states simulating road or bridge damage werw disintegrated by pure continuous water jets generated from pressure 380 MPa and by pulsing water jets generated from low pressure 30 MPa. The erosion states of samples were prepared applying several laboratory techniques simulating the concrete aging under the conditions corresponding to the use in practice. The influence of the erosion state on the disintegration rate was tested because water jet techniques are very effective in selective disintegration of damaged concrete without significant erosion of the unbroken concrete unlike pneumatic drills or other impacting machines usually used for such a work. The comparison of both the depth of penetration and the ratio of volume disintegration regarding the input power is performed. All results are discussed regarding their application in practice and furher development of special routings.

English abstract

The concrete samples with various erosion states simulating road or bridge damage werw disintegrated by pure continuous water jets generated from pressure 380 MPa and by pulsing water jets generated from low pressure 30 MPa. The erosion states of samples were prepared applying several laboratory techniques simulating the concrete aging under the conditions corresponding to the use in practice. The influence of the erosion state on the disintegration rate was tested because water jet techniques are very effective in selective disintegration of damaged concrete without significant erosion of the unbroken concrete unlike pneumatic drills or other impacting machines usually used for such a work. The comparison of both the depth of penetration and the ratio of volume disintegration regarding the input power is performed. All results are discussed regarding their application in practice and furher development of special routings.

Keywords

water jet, depth of penetration, remioved volume, concrete erosion, concrete repair, reinforcement purging.

RIV year

2012

Released

19.03.2012

Publisher

Vilnius Gediminas Technical University, 2012

Location

Vilnius

ISBN

1822-427X

Periodical

Baltic Journal of Road and Bridge Engineering

Year of study

7

Number

1

State

LV

Pages from

53

Pages to

59

Pages count

7

Documents

BibTex


@article{BUT91604,
  author="Libor {Hlaváč} and Lenka {Bodnárová} and Eva {Janurová} and Libor {Sitek}",
  title="Comparison of continuous and pulsing water jets for repair actions on road and bridge concrete",
  annote="The concrete samples with various erosion states simulating road or bridge damage werw disintegrated by pure continuous water jets generated from pressure 380 MPa and by pulsing water jets generated from low pressure 30 MPa. The erosion states of samples were prepared applying several laboratory techniques simulating the concrete aging under the conditions corresponding to the use in practice. The influence of the erosion state on the disintegration rate was tested because water jet techniques are very effective in selective disintegration of damaged concrete without significant erosion of the unbroken concrete unlike pneumatic drills or other impacting machines usually used for such a work. The comparison of both the depth of penetration and the ratio of volume disintegration regarding the input power is performed. All results are discussed regarding their application in practice and furher development of special routings.",
  address="Vilnius Gediminas Technical University, 2012",
  chapter="91604",
  institution="Vilnius Gediminas Technical University, 2012",
  number="1",
  volume="7",
  year="2012",
  month="march",
  pages="53--59",
  publisher="Vilnius Gediminas Technical University, 2012",
  type="journal article - other"
}