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1. 发明授权

US3949531A Hollow cored concrete slab and method of making the same 失效
标题翻译：中空混凝土混凝土板及其制作方法
公开(公告)号：US3949531A
公开(公告)日：1976-04-13
申请号：US461996
申请日：1974-04-18
申请人： James L. Fanson
发明人： James L. Fanson
IPC分类号： B28B7/18 , B28B23/00 , E04B5/19 , E04B1/16 , B28B1/16
CPC分类号： B28B23/0068 , B28B7/18 , E04B5/043
摘要： A hollow cored concrete slab is the product of the method which includes casting a base layer of concrete into a suitable form. Placing precast concrete channel members in transversely spaced relation on the freshly cast base layer with the flanges of the members in contact with the base layer and the webs of the members in spaced relation from the base layer. Casting an upper layer of concrete onto the fresh base layer and around the channel members and striking the upper layer in spaced relation above the channel members so that the upper layer of concrete covers the webs of the channel members to a given depth. The slab is then cured with the channel members remaining a structural part thereof and providing for the transversely spaced hollow cores therein.
摘要翻译：中空的核心混凝土板是该方法的产物，其包括将混凝土的基层浇铸成适当的形式。将预制混凝土通道构件以横向隔开的关系放置在新浇铸的基层上，其中构件的凸缘与基层接触并且构件的腹板与基层间隔开。将上层混凝土浇筑到新鲜的基层上并围绕通道构件，并且在通道构件上方以间隔开的方式撞击上层，使得上层混凝土覆盖通道构件的腹板至给定的深度。然后使板坯固化，其中通道构件保留其结构部分，并为其中的横向间隔的中空芯提供。

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