Installable one-time shrinkage for building shrinkage modules for making concrete bases

摘要

It refers to a one-time shrinkage, which can be assembled into a shrinkage module suitable for building a base. This shrinkage is basically the side of a parallel structure, It has a number of proper openings on the side, which can release part of the cement mixture in the trench at the bottom during the concrete mixing process. Concrete can overflow from top to bottom shrinkage and gradually fill in all shrinkage, which will not be removed if it is not combined with hard cement. Its application in the construction industry and related industries