Concrete floor

The utility model discloses a concrete floor slab, relates to the technical field of prefabricated buildings, aims to solve the problem that in the prior art, laying of pipelines on a laminated slab wastes time, and provides an efficient and time-saving solution. The composite plate comprises a composite plate body and a cast-in-place layer, a plurality of positioning holes are formed in the upper surface of the composite plate body, and every two positioning holes are connected with a positioning fastener used for fixing a pipeline. 本实用新型公开了一种混凝土楼板，涉及预制建筑的技术领域，本实用旨在解决现有技术中叠合板上管线布设耽误时间的问题，提出一种高效省时的解决方案。本实用新型包括：包括叠合板以及现浇层，所述叠合板的上表面设置有若干个定位孔，每两个所述定位孔连接一个用于固定管线的定位扣件。