A paving material that balances permeability and water retention! Its finely textured surface prevents water splashing, making it a new environmentally friendly walking path pavement material that is less slippery even when wet!
Permeable and water-retaining paving material colored sand is an environmentally-oriented new pedestrian road paving material that 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 finish the product. It allows precious water resources of the Earth, namely "rainwater," to permeate and be replenished underground, mitigates the "heat island phenomenon" in urban areas, revives spring water, promotes the growth of trees and flowers, and contributes to the creation of urban environments rich in "water and greenery." 【Features】 ○ Excellent permeability ○ No "puddles" during rainfall, non-slip ○ Mitigates 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 → Specimens for "flexural strength tests" are prepared for each site and tested by a public testing agency → "On-site permeability tests" are conducted in the presence of the client and the main 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 bicycle paths exclusively for pedestrians and bicycles. ○CS-II → Pedestrian roads where vehicles for management under 4 tons 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, revitalizing spring water, promoting the growth of trees and flowers, and restoring "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" access, "disaster evacuation routes," "weed prevention measures," and "school route improvements."
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