18. Joint Fillers and Sealers in Concrete Pavements
The chapter discusses the importance of joint fillers and sealers in concrete pavements, emphasizing their roles in preventing damage caused by environmental factors. It details various types of joints, their characteristics, and the materials used for joint fillers and sealers. Key installation techniques and maintenance practices to ensure longevity and effectiveness of these components are also highlighted.
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What we have learnt
- Joint fillers accommodate the thermal expansion and shrinkage in concrete pavements.
- Joint sealers prevent water and debris from penetrating joints, protecting the pavement.
- Different installation techniques and the selection of appropriate materials are crucial for effective joint sealing.
Key Concepts
- -- Joint Fillers
- Materials used to occupy joint spaces in concrete, allowing for expansion and preventing damage.
- -- Joint Sealers
- Coatings applied to joints that protect against water intrusion and environmental damage.
- -- Compression
- The process by which joint fillers absorb forces to accommodate the expansion of concrete.
- -- Elastomeric Sealants
- Flexible sealants capable of returning to their original shape after deformation.
- -- Installation Techniques
- Methods for applying joint fillers and sealers to ensure they perform as intended.
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