Test die is used to form special equipment for forming standard test pieces of cement, mortar and concrete. The formed test pieces can be used to test the compressive strength, flexural strength and other physical properties of cement, mortar and concrete.

According to the structure, it can be divided into cube, cuboid, cylinder, cone type, according to the use, it can be divided into cement mortar test mode, mortar test mode, concrete compression test mode, concrete antifreeze test mode, concrete bending test mode, concrete elasticity Modulus test mode, concrete impermeability test mode, etc., cube and cuboid test mode can be divided into single and triple, cylindrical and conical types are divided into integral type and split type. The single-cube and cuboid test molds are composed of side plates and bases. The triple-cubic test molds are composed of end plates, partitions and bases, and the sealed test molds are composed of side plates, cover plates and bases or end plates, partitions and cover plates And base.