发明授权
- 专利标题： Method of finishing plastic concrete mixture
- 专利标题（中）： 塑料混凝土混合料的整理方法
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申请号： US09364892申请日： 1999-08-02
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公开(公告)号： US06780369B1公开(公告)日： 2004-08-24
- 发明人: Darrell Darrow , Glenn F. Rogers, Jr. , Samuel A. Face, Jr. , David Francis , Michael Davis , Yuting Wang
- 申请人： Darrell Darrow , Glenn F. Rogers, Jr. , Samuel A. Face, Jr. , David Francis , Michael Davis , Yuting Wang
- 主分类号： B28B1093
- IPC分类号： B28B1093
摘要：
A method of finishing concrete using a vibrating tool to consolidate a “dry shake” aggregate into the upper layer of the concrete. The use of the vibrating tool causes moisture within the concrete mass to migrate into the surface layer where the moisture may hydrate the aggregates in the dry shake mixture. The ability to cause upward migration of water in the concrete mass provides a larger window of finishability for the concrete. The vibrations also provide thorough consolidation of aggregates in the upper layer of the concrete mass helping to prevent delamination.
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