A new manhole inside an existing manhole.
The Jickboard J method is a self-supporting manhole rehabilitation technique that provides performance equivalent to that of newly constructed manholes, using only rehabilitation materials for existing manholes that cannot be expected to withstand corrosion or aging. It is a unique method that combines Jickboard, Jick grout, and Jick grid into a single rehabilitation material, offering load-bearing and seismic performance comparable to newly constructed manholes. ▼Features - It can be adapted to facilities under very harsh conditions or those requiring long-term durability. - Jickboard is a factory-molded product with a homogeneous, high-density corrosion-resistant coating that has excellent barrier properties, eliminating the risk of permeation by corrosive substances. - The joints have a double structure of molded products and corrosion-resistant seals, providing excellent durability features that prevent damage to the joint areas due to stress concentration and other factors.
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▼Scope of Application 【Type】Assembled manholes, cast-in-place manholes 【Shape】Round type No. 1, No. 2, No. 3 manholes 【Depth】Up to 5m
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For details, please download the catalog or contact the person in charge.
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We have obtained construction technology certification from the Japan Sewage Works New Technology Organization, a public interest incorporated foundation.
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Company information
Nihon Jikkou is a core company of a comprehensive engineering group that contributes to society through the production and sale of various related materials, starting with concrete anti-corrosion construction. Japan is now entering an era of high prevalence of social infrastructure such as water supply and sewage systems, with a vast number of concrete facilities being stockpiled. However, as these facilities age and deteriorate, it has become an urgent issue to systematically and effectively implement repair and maintenance measures to sustain them in the future. Nihon Jikkou and its group companies address these challenges by proposing optimal deterioration prevention measures based on environmental factors and facility characteristics, along with excellent construction techniques, thereby meeting all maintenance and management needs for concrete structures.