Super-early-strength black steel fiber reinforced concrete castable and using method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUHAN HANYANG MUNICIPAL CONSTR GRP CO LTD
- Publication Date
- 2020-04-03
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the technical field of road engineering. More specifically, the present invention relates to a super-early-strength black steel fiber concrete castable and its application method. Background technique
[0002] At present, the construction of urban municipal engineering infrastructure is developing rapidly, and there are many problems in the service process of urban road inspection wells. Many new road pavement inspection wells that have been completed and opened to traffic for only one to two years often have problems such as noise of the manhole cover, height difference between the manhole cover and the surrounding asphalt, resulting in vehicle jumping, loose manhole covers and cracks in the surrounding asphalt. If it is not repaired in time, cracks and damage will appear around the inspection well after being rolled by heavy-duty vehicles for a long time.
[0003] Traditional urban inspection well repair usually adopts asph...