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Advantages by using integral drainages

Toyota Kohki Co., Ltd., Tokio, 183-0035 Japan


In Japan, many types of the drainage products are developed by the precast concrete manufacturers and the integral drainages (the lid is integrated with the gutter) became the mainstream types in urban area recently. There are many advantages by using integral drainages instead of traditional gutter with lid - no risk of accidents caused by the lid dropping, no noise when vehicle or pedestrian passes on the gutter, easy to put design on the top surface which gives high additional value and a better landscape, etc. On the other hand, there are also some disadvantages for the normal integral drainages such as difficulty in making - narrow deep element, slope inside the element for water flow, curve sections and difficulty in cleaning and maintenance, etc. In this issue, “Free Drain” which resolved the above disadvantages will be introduced.

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Toyota Kohki Co., Ltd.
6-12-8 Yotsuya Fuchu-shi
Tokio, 183-0035 Japan
T +81 42 3666011
F +81 42 3642530

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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