Technical information
Waterproofing Split (Stone) Mastic Asphalt Pavement WATERPROOF SMAC
![](https://www.nippo-c.co.jp/en/tech_info/wp-content/uploads/2024/02/icon05.jpg)
Category :
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Paving Methods > Roadway > Bridge Surfaces / Waterproof >
Ensures excellent watertightness with special additives
Overview
This is a split (stone) mastic asphalt pavement with improved watertightness, a feature of SMAC, as well as an improved composition for waterproofing. In order to sufficiently compact the mixture and ensure impermeability, Foam Set, a special additive used in Ecofine, a Warm Mix Asphalt, is used for the purpose of improving workability.
Features
- Water tightness: Essentially impermeable with a permeability rating of no more than 10-7 cm/s
Uses
- Waterproofing layers of bridge decks
- Paving in locations where watertightness is required, such as waste disposal sites
Related
![](https://www.nippo-c.co.jp/tech_info/images/general/large1/SG02031_1.jpg)
![](https://www.nippo-c.co.jp/tech_info/images/general/large2/SG02031_1.jpg)
![](https://www.nippo-c.co.jp/en/tech_info/wp-content/uploads/2024/02/SG02031_2.jpg)
Typical Cross Section
![](https://www.nippo-c.co.jp/en/tech_info/wp-content/uploads/2024/02/SG02031_2-2.jpg)