Use of Hot Water Pressure Wash Surface Preparation and HRCSA Coatings in Bridge Maintenance

Qi, Xiaoning

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Use of Hot Water Pressure Wash Surface Preparation and HRCSA Coatings in Bridge Maintenance

2023-02-01
By Qi, Xiaoning

File Language:

English

Details

Creators:

Qi, Xiaoning
Corporate Creators:

North Dakota State University. Department of Coatings and Polymeric Materials
Corporate Contributors:

Minnesota. Department of Transportation. Office of Research & Innovation
Subject/TRT Terms:
Publication/ Report Number:

TRS2302
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Transportation Research Synthesis
Corporate Publisher:

Minnesota. Department of Transportation. Office of Research & Innovation
Abstract:

In this Transportation Research Synthesis (TRS), state-of-the-art practice of highway bridge maintenance painting using high-ratio calcium sulfonate alkyd (HRCSA) and hot water pressure wash (HWPW) is reviewed and different state DOTs are surveyed. In summary, low-toxic HRCSA causes less pollution, eliminates waiting time between layers of coatings, and performs well for corrosion prevention. However, like any other protective coating system, optimum HRCSA performance requires following the manufacturer’s specifications. Contrary to what the term “one-coat system” may suggest, HRCSA application is a multi-step process that requires HWPW surface preparation. Based on the literature review and survey findings, without further testing and trials, HRCSA is recommended only for maintenance tasks that can strictly fulfill the manufacturer’s specifications, i.e., an initial HWPW followed by the multi-step process and sufficient drying time before an extreme weather event.
Format:

PDF
Funding:

(c)1036338 (wo) 3
Download URL:

https://rosap.ntl.bts.gov/view/dot/67158/dot_67158_DS1.pdf
File Type:

[PDF - 5.89 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:f788bfeba4040562124809e13b1a1e3e03adac4bee2546043e496babfab6965e

File Language:

English

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