Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete

Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete

Hydrodemolition is a method of surface preparation using high-pressure water jets. Hydrodemolition cutting depth is dependent on the length of time that the water jet is directed at the concrete surface that determines the depth of removal, and contact time is controlled at the robotic cutter. Durin...

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Main Authors: YUN Kyong-Ku, Lee Kyeo-Re, HAN Seung-Yeon, KIM Yong-Gon, KWON Soo-Ahn
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:MATEC Web of Conferences
Online Access:https://doi.org/10.1051/matecconf/201819907009
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spelling doaj-7e94a085b9904ee89b5c9233fc360cf32021-02-02T05:02:55ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011990700910.1051/matecconf/201819907009matecconf_iccrrr2018_07009Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed ConcreteYUN Kyong-Ku0Lee Kyeo-Re1HAN Seung-Yeon2KIM Yong-Gon3KWON Soo-Ahn4Professor, Civil Engineering Department, Kangwon National UniversityGraduate Student, Civil Engineering Department, Kangwon National UniversityGraduate Student, Civil Engineering Department, Kangwon National UniversityCEO, Daesang E&CSenior Research Fellow, Korea Institute of Construction TechnologyHydrodemolition is a method of surface preparation using high-pressure water jets. Hydrodemolition cutting depth is dependent on the length of time that the water jet is directed at the concrete surface that determines the depth of removal, and contact time is controlled at the robotic cutter. During hydrodemolition concrete removal, the cement matrix is removed from the aggregate. This paper describe on the test results of under-water hydrodemolition which was done on a prefabricated concrete basin. A very simple and economic method for repairing the damaged concrete structures is a using a sprayed concrete, which is some times called as shotcrete. This paper, also, describe on the test results of sprayed concrete for the rehabilitation of marine concrete structure.https://doi.org/10.1051/matecconf/201819907009
collection DOAJ
language English
format Article
sources DOAJ
author YUN Kyong-Ku
Lee Kyeo-Re
HAN Seung-Yeon
KIM Yong-Gon
KWON Soo-Ahn
spellingShingle YUN Kyong-Ku
Lee Kyeo-Re
HAN Seung-Yeon
KIM Yong-Gon
KWON Soo-Ahn
Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete
MATEC Web of Conferences
author_facet YUN Kyong-Ku
Lee Kyeo-Re
HAN Seung-Yeon
KIM Yong-Gon
KWON Soo-Ahn
author_sort YUN Kyong-Ku
title Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete
title_short Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete
title_full Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete
title_fullStr Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete
title_full_unstemmed Rehabilitation of Marine Concrete Structure with Under-Water Hydrodemolition and Sprayed Concrete
title_sort rehabilitation of marine concrete structure with under-water hydrodemolition and sprayed concrete
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2018-01-01
description Hydrodemolition is a method of surface preparation using high-pressure water jets. Hydrodemolition cutting depth is dependent on the length of time that the water jet is directed at the concrete surface that determines the depth of removal, and contact time is controlled at the robotic cutter. During hydrodemolition concrete removal, the cement matrix is removed from the aggregate. This paper describe on the test results of under-water hydrodemolition which was done on a prefabricated concrete basin. A very simple and economic method for repairing the damaged concrete structures is a using a sprayed concrete, which is some times called as shotcrete. This paper, also, describe on the test results of sprayed concrete for the rehabilitation of marine concrete structure.
url https://doi.org/10.1051/matecconf/201819907009
work_keys_str_mv AT yunkyongku rehabilitationofmarineconcretestructurewithunderwaterhydrodemolitionandsprayedconcrete
AT leekyeore rehabilitationofmarineconcretestructurewithunderwaterhydrodemolitionandsprayedconcrete
AT hanseungyeon rehabilitationofmarineconcretestructurewithunderwaterhydrodemolitionandsprayedconcrete
AT kimyonggon rehabilitationofmarineconcretestructurewithunderwaterhydrodemolitionandsprayedconcrete
AT kwonsooahn rehabilitationofmarineconcretestructurewithunderwaterhydrodemolitionandsprayedconcrete
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