Rainwater treatment methods in urban areas! Exhibiting excellent infiltration capabilities with a permeability coefficient of 0.5 cm/sec or higher.
The "Permeable Circular Drain" utilizes the technology of precasting circular drains and incorporates the function of permeability, leading to its development. It excels in aesthetic appeal and has been adopted by many government agencies, architectural firms, and surveying offices. We offer a wide range of products, including the urban-oriented circular drain "Floor Type," the "Mound Type" suitable for road drainage permeability, and the "Grating Type S-I" with a 2% slope that accommodates barrier-free design. 【Features】 - Utilizes the technology of precasting circular drains while adding the function of permeability. - Made with high-quality aggregates from the Kinugawa River. - Exhibits excellent permeability with an average permeability coefficient of over 0.5 cm/sec. - Capable of returning rainwater to underground soil, contributing to groundwater replenishment. - The structure complies with T-25 standards, making it suitable for use as a roadside drain. *For more details, please refer to the PDF document or feel free to contact us.
Inquire About This Product
basic information
【Lineup】 ■ Floor Type ■ Dual Slope Type ■ Mound Type ■ Type α ■ Special Permeable Circular Drain ■ Cross Type ■ Barrier-Free Circular Drain ・ Grating Type S-I ・ Grating Type S-II ・ Grating Type S-III ・ Slit Type S-I ・ Slit Type S-II *For more details, please refer to the PDF document or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
【Uses】 ■ Roads (general roads, permeable pavement, used in conjunction with interlocking) ■ Building exteriors (prefectural housing, municipal housing, private exteriors) ■ Used in conjunction with retention basins (rainwater runoff control through permeable circular structures) *For more details, please refer to the PDF document or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
Kokuka Corporation is a comprehensive manufacturer of secondary products made from permeable concrete, consistently engaged in research and development, manufacturing, and sales of various rainwater infiltration products. We are a professional group specializing in permeable concrete. We handle products such as permeable gutters KSU, KU, NFU, permeable boxes, permeable trench KT-1, and sports U-shaped gutters. Please feel free to contact us if you have any inquiries.