Sewer assembly manhole using immersion bonding method.
The pre-hall is an economical precast concrete assembly manhole that uses an impregnation adhesive method with elastic adhesive to bond and hold each assembly component, while also excelling in workability, water tightness of joints, and seismic resistance.
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basic information
**Features of Pre-Holes** 1. By compacting concrete using centrifugal force or roller compaction methods, high-strength and highly watertight components are produced. 2. For the joining of each component, an impregnation adhesive method using elastic adhesive materials is employed, eliminating the need for seal rubber, gaskets, clamps, etc. 3. The use of elastic adhesive materials ensures basic strength performance at the time of delivery and provides deformation performance that absorbs energy during earthquakes, thereby improving seismic resistance compared to conventional methods. 4. The performance of the components has been verified through various tests, resulting in an ideal manhole with no misalignment or leakage at the joints. 5. Compared to cast-in-place manholes, the excavation profile is smaller, making installation simple and quick, which is economically advantageous. 6. The installation of steps also uses the impregnation adhesive method, ensuring complete fixation with the components. Additionally, the step width is 40mm, allowing for safe ascent and descent.
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Company information
The Fuji Kong Group contributes to the development of social infrastructure to realize a safe and secure life for people through concrete secondary products and construction foundation businesses. It has also been designated as a model company for small and medium-sized enterprises in Toyama Prefecture, and as a manufacturing company, it continuously thinks about and practices how it can contribute to the community and society.