Experimental and Statistical Study of High-Pressure Water Jet “Hydro-Demolition Technique” on Concrete for Partial-Depth Concrete Bridge Deck Repair Applications
Water jetting is a cutting technique that has been widely used for cutting different types of material in many industries. In the concrete industry, water jetting is often referred to as hydro-demolition; it is used as a technique to remove deteriorated concrete within transportation infrastructure rehabilitation projects. For partial-depth repair of concrete bridge decks, using the hydro-demolition method to remove the upper half of the deck can cause a major problem known as punch-through. Punch-through is where the high-pressure water makes a full-depth removal instead of partial-depth removal. Punch-through is caused by a lack of pressure control over the cutting depth and is dependent on the concrete properties and the water jet operation parameters. In this study, the hydro-demolition technique is investigated to eliminate the occurrence of punch-through. Experimental and statistical analyses are performed to investigate the effect of high-pressure water on concrete as part of the partial-depth repair of a concrete bridge deck. Small-scale trials of 15 concrete specimens with varying compressive strengths are tested. Statistical analysis for experimental data for abrasive water jets on concrete with different compressive strengths is carried out to develop a predictive model for determining the input parameters to accurately predict concrete removal to a specified depth. The experimental study finds that the water pressure, cutting time, and compressive strength of concrete influence the cutting depth of the water jet. Statistical analysis provides a multi-regression model that can be employed for the prediction and optimization of response parameters of the hydro-demolition technique.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- Israi Abu Shanab https://orcid.org/0000-0002-6936-8378© National Academy of Sciences: Transportation Research Board 2023.
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Authors:
- Shanab, Israi Abu
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0000-0002-6936-8378
- Sorensen, Andrew D
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0000-0001-9998-2021
- Publication Date: 2023-12
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 479-489
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Volume: 2677
- Issue Number: 12
- Publisher: Sage Publications, Incorporated
- ISSN: 0361-1981
- EISSN: 2169-4052
- Serial URL: http://journals.sagepub.com/home/trr
Subject/Index Terms
- TRT Terms: Bridge decks; Concrete bridges; Demolition; Predictive models; Statistical analysis; Water cannons
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;
Filing Info
- Accession Number: 01882005
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: May 16 2023 10:31AM