A paving material that balances permeability and water retention! Its finely textured surface prevents water splashing, making it a new environmentally friendly walking path paving material that is less slippery even when wet!
Permeable and water-retaining paving material colored sand uses "blast furnace crushed slag," a byproduct of steelmaking, as the main aggregate, along with cement additives and inorganic pigments as secondary materials. These components are mixed and compacted using a roller machine to create an environmentally friendly new type of pedestrian road paving material. It allows the precious water resource of the Earth, "rainwater," to permeate and be returned to the ground, alleviating the "heat island phenomenon" in urban areas, reviving spring water, promoting the growth of trees and flowers, and contributing to the creation of urban environments rich in "water and greenery." 【Features】 ○ Excellent permeability ○ No "puddles" form during rainfall, and it is non-slip ○ Alleviates the heat island phenomenon ○ Maintains high "water retention" ○ Soft walking sensation For more details, please contact us or download the catalog.
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basic information
【Specifications】 ○ Flexural strength: 30 kgf/cm² or more ○ Permeability: 2.0×10⁻² cm/sec or more (0.02 cm/sec) Difficult to form puddles on the surface even during heavy rain of 30 mm/h ○ Water retention: 0.23 g/cm³ or more ○ Slip resistance value: BPN value of 70 or more ○ Freeze damage resistance: No freeze damage occurs even in cold and snowy areas (15 years in Tohoku) ○ Service life (average): Maintains sufficient "paving function" even after more than 15 years ○ Paving colors: Standard 5 colors (Soft Red, Light Brown, Yellow, Green, Natural) ○ On-site quality control → Prepare test specimens for "flexural strength test" at each site and conduct tests at a public testing organization → Conduct "on-site permeability tests" in the presence of the client and general contractor ● For more details, please contact us or download the catalog.
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Applications/Examples of results
【Usage】 ○CS-I → Sidewalks, squares, park paths, and bike paths exclusively for pedestrians and bicycles. ○CS-II → Pedestrian roads where vehicles under 4 tons for management purposes and passenger cars, in addition to pedestrians and bicycles, can pass. ○CS-III → Internal roads where large vehicles and emergency vehicles (large fire trucks) can temporarily enter. ● For more details, please contact us or download the catalog.
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Company information
The permeable and water-retaining pavement materials developed by Sanwa Grand Co., Ltd. allow rainwater, an invaluable water resource for the Earth, to permeate and be returned to the ground, thereby alleviating the "heat island phenomenon" in urban areas during the summer, reviving spring water, promoting the growth of trees and flowers, and regenerating "moisture of water and greenery" in the city, creating a pavement that is friendly to both people and nature. Our company aims to contribute to society as a member of a company that creates a comfortable environment through the dissemination of these environmentally friendly pavement materials, which excel in permeability and water retention. Our pavement materials are also ideal for areas with high social needs, such as "barrier-free," "disaster evacuation routes," "weed control measures," and "school route maintenance."