Invention Grant
- Patent Title: Lightweight concrete aggregate and method
- Patent Title (中): 轻质混凝土骨料和方法
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Application No.: US47880Application Date: 1979-06-12
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Publication No.: US4235640APublication Date: 1980-11-25
- Inventor: Bruce P. Cox , David P. DeVries
- Applicant: Bruce P. Cox , David P. DeVries
- Applicant Address: CA LaCanada
- Assignee: DeVries; David P.
- Current Assignee: DeVries; David P.
- Current Assignee Address: CA LaCanada
- Main IPC: C04B20/10
- IPC: C04B20/10 ; C04B31/42
Abstract:
A lightweight aggregate for use in making concrete which comprises scoria aggregate with the individual particles of the aggregate being impregnated with a slow or medium setting asphalt emulsion in an amount sufficient to materially reduce the absorption rate of the scoria aggregate.
Public/Granted literature
- US5953976A Working cylinder with dampened ends Public/Granted day:1999-09-21
Information query
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