Drainage device for water -permeable asphalt road
The utility model provides a drainage device for water -permeable asphalt road, include: the permeable asphalt layer, it is laid by the permeable asphalt mixture, and its dynamic porosity is 18~22%, the permeable bed, its rubble by the particle diameter is 15~20mm is laid, the both sides of the bott...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
02.02.2018
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Subjects | |
Online Access | Get full text |
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