Before revision: Certain joints feature so-called “sinus plates” on their surface, which reduce noise from over-passing traffic by up to 80%.Modular expansion joint See also masonry control joints , which are sometimes used in bridge slabs.
After revision: Certain joints feature so-called “sinus plates” on their surface, which reduce noise from over-passing traffic by up to 80%.Modular expansion joint Masonry control joints are also sometimes used in bridge slabs.