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A expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials. They are commonly found between sections of buildings, bridges, sidewalks, railway tracks, piping systems, ships, and other structures.
Expansion joints permits thermal contraction and expansion without inducing stresses into the elements. An expansion joint is designed to absorb safely the expansion and contraction of several construction materials, absorb vibrations, and permit soil movements due to earthquakes or ground settlement.
An expansion joint, also known as a movement joint, is an assembly created to securely hold parts together while safely absorbing vibration, temperature-induced expansion, and contraction of building materials, or to permit movement due to ground settlement or seismic activity.
Expansion joints are predetermined gaps in building structures designed to allow for environmental movement. Location, size and movement requirements are project specific and established by the Structural Engineer of Record.
Jan 9, 2024 · Expansion joints let concrete expand and contract without causing damage. What is the recommended distance between expansion joints? Most concrete contractors control cracks by keeping the maximum distance between joints (in feet) at 2 to 2.5 times the slab’s thickness in inches.
Expansion joints are primarily designed to facilitate the movement in structures caused by temperature induced expansion and contraction. They also help extend the life of concrete structures by providing some “give” in the movement of the structure.
Start with this definitive resource of key specifications and things to consider when choosing Flexible Expansion Joints.
Feb 1, 2017 · Expansion joints are sometimes misunderstood. Despite the name, expansion joints normally do not expand during operation. They compress in most applications. Expansion joints provide stress relief from thermal and mechanical vibrations and/or movements in piping systems.
Sep 24, 2023 · Expansion joints (also known as movement joints) are gaps in structures that allow different parts of the structure to move independently. They represent a disruption in both reinforcement and concrete, making them effective for accommodating both shrinkage and temperature variations.
Products that account for expansion can range from simple, small-movement joint seals to state-of-the-art, large-movement, seismic-capable joint systems. Choosing the correct types of expansion joints in concrete for your specific project requires consideration of several factors.
