What is an edge restraint and what materials are commonly used?

What is an edge restraint and what materials are commonly used?

• A. A decorative trim piece.
• B. A perimeter device that locks pavers in place; materials include concrete, manufactured polymers, or natural stone.
• C. A drainage channel.
• D. A weed barrier.

Answer: (B)

Edge restraint is a perimeter device that locks the outer edge of a paved area in place, preventing lateral movement and helping maintain alignment of the pavers under loads and over time. By creating a stable boundary, it stops the edge pavers from spreading or rising due to traffic, frost, and ground movement, which keeps joints tight and the surface looking uniform. Common materials used for edge restraints include concrete (such as precast concrete edging or poured-in-place edging), manufactured polymers (plastic or polymer-based edging), and natural stone (curbstone or other stone edging). These options are chosen based on the project’s aesthetics, durability needs, and installation environment, but all function to hold the edge so the pavement system remains stable.

Edge restraint is a perimeter device that locks the outer edge of a paved area in place, preventing lateral movement and helping maintain alignment of the pavers under loads and over time. By creating a stable boundary, it stops the edge pavers from spreading or rising due to traffic, frost, and ground movement, which keeps joints tight and the surface looking uniform.

Common materials used for edge restraints include concrete (such as precast concrete edging or poured-in-place edging), manufactured polymers (plastic or polymer-based edging), and natural stone (curbstone or other stone edging). These options are chosen based on the project’s aesthetics, durability needs, and installation environment, but all function to hold the edge so the pavement system remains stable.