Sanwa Grand aims to contribute to the achievement of the SDGs with three goals by using permeable and water-retaining pavement materials made from recycled materials, specifically blast furnace slag.
"13 Specific Measures Against Climate Change" [Conservation of Natural Environment] We will provide products that are friendly to disaster reduction and the precious local resources of "water and greenery." [Permeability and Water Retention] By allowing rainwater to "permeate and return" to the ground, we promote the stabilization of groundwater sources and the growth of vegetation. Stored water helps mitigate the heat island phenomenon. "12 Responsibility to Create and Responsibility to Use" [Reduction of Environmental Impact] We will provide durable products using recycled materials. [Environmental Quality] Blast furnace crushed slag is a specified procurement item under green procurement methods. [Durability] There are many cases where the paving function has been maintained for over 15 years. "11 Building Sustainable Communities" [User-Friendly] We will provide safe, secure, and comfortable spaces for children, the elderly, and people with disabilities. [Universal Design] High flatness supports barrier-free access, creating a comfortable walking environment for everyone. [Safety] Safe and secure paving materials using "harmless" blast furnace crushed slag. ■ Case Studies Osaka Castle Park (Construction in 2023) Dejima Dutch Trading Post Ruins (Construction in 2022) Aoyama Cemetery (Construction in 2021) *For more details, please contact us.
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basic information
【Examples of Use】 ◎ Park paths ◎ Walking paths ◎ Strolling paths ◎ Architectural exteriors etc. 【Specifications】 Bending 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 Frost resistance: Highly frost-resistant, with extensive performance in cold regions Service life (average): Maintains sufficient "paving function" even after more than 15 years Paving colors: Standard 5 colors (Soft Red, Light Brown, Yellow, Sand Beige, Natural) On-site quality control: Specimens for "bending strength tests" are produced at each site and tested by public testing institutions *For more details, please refer to the materials. Feel free to contact us with any inquiries.
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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 under 4 tons for management and passenger cars can also pass, in addition to pedestrians and bicycles ○CS-III → Internal roads where large vehicles and emergency vehicles (large fire trucks) can temporarily enter *For more details, please refer to the materials. Feel free to contact us with any inquiries.
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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