What is Expansion Joint?
Expansion Joint is filled with expansion joint filler, which is compressible enough to accommodate the expansion of adjacent parts, and having ability to regain 75% of the original thickness, when pressure is released. It should be located at or near the junction between the wall and floor. In case of expansion joints in floors, provision of waterbar may not be necessary. In case of long chajjas, the expansion joints shall not extend into the portion where sunshade is embedded into masonary but shall stop of face by 5 cm.
IS 3414 code covers design and installation of joints in buildings.
