Masonry what is a cold joint?

A cold joint in masonry refers to a discontinuity that occurs when fresh concrete is poured on top of concrete that has already set. This can happen due to delays in the pouring process or inadequate bonding between layers. Cold joints can compromise the structural integrity and water resistance of the masonry, leading to potential weaknesses and issues if not properly managed. To prevent cold joints, it's essential to ensure that layers are poured within the recommended time frame or to use bonding agents when necessary.