Crack sealers for the preservation of concrete bridge decks: a synthesis of a national survey and literature review

Crack sealers for the preservation of concrete bridge decks: a synthesis of a national survey and literature review

Crack sealers are crucial for preserving concrete bridge decks and extending their service life. This paper presents a comprehensive national survey in the U.S., gathering responses from a total of 37 different agencies, along with literature studies on crack sealer practices in concrete bridge deck...

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Bibliographic Details
Published in:Journal of infrastructure preservation and resilience Vol. 4; no. 1; pp. 23 - 14
Main Authors: Ni, Xiaoqiang, Leon-Miquel, Matias, Greiner, Quentin R., Paul, Alvaro, Jin, Qingxu
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-12-2023
Springer Nature B.V
SpringerOpen
Subjects:
Bridge decks
Civil Engineering
Concrete
Concrete bridge deck
Concrete bridges
Crack sealer
Cracks
Curing
Decision making
Deicers
Deicing
Engineering
Intervals
Literature reviews
Performance evaluation
Polymethyl methacrylate
Preservation
Review
Sealers
Sealing
Sealing compounds
Service life
Surface preparation
Surveys
Viscosity
United States > US
Missouri
Crack sealer
Performance evaluation
Preservation
Concrete bridge deck
Surface preparation
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Summary:Crack sealers are crucial for preserving concrete bridge decks and extending their service life. This paper presents a comprehensive national survey in the U.S., gathering responses from a total of 37 different agencies, along with literature studies on crack sealer practices in concrete bridge decks. The study covers various aspects, including available crack sealers, sealing triggers, approved product list and performance, resealing intervals, method selection, and surface preparation. Based on the study findings, epoxy, methyl methacrylate (MMA), and high-molecular-weight methacrylate (HMWM) are the most commonly used crack sealers, each offering distinct advantages. Sealing criteria are based on crack dimensions and deicing exposure. Resealing intervals vary due to sealant composition, deck age, and climate. Method selection considers deck attributes, temperature, and moisture. The study identifies gaps in consistently approved product lists and suggests future research areas, such as investigating the effects of entrapped chloride, conducting long-term performance testing, and correlating laboratory and field data. The study’s findings contribute to current practices, facilitating decision-making and providing guidance for targeted future research.
ISSN:2662-2521
2662-2521
DOI:10.1186/s43065-023-00091-8