| 摘要 |
A concrete septic tank is provided to improve durability and to reduce an installation coast by integrally engaging an upper concrete structure to a lower concrete structure. A concrete septic tank comprises a lower concrete structure(100), an upper concrete structure(200), a rubber packing(300), and a partition(400). The lower concrete structure has horizontal surface(101), a packing insert unit(102), a partition insert unit(103), a bolt(104) at a lower surface. A waterproof coating layer is formed at an inner surface of the lower concrete structure. The upper concrete structure has a bolt hole(102), a packing insert unit, a partition insert unit, an opening unit(204), a water proof coating layer, an inlet(206), and an outlet(207). The bolt of the lower concrete structure passes the bolt hole of the upper concrete structure. The opening unit is formed at an upper part of the upper concrete structure. The partition insert unit and the waterproof coating layer are formed at an inner surface of the upper concrete structure. The rubber packing is inserted to the lower concrete structure and the packing insert unit of the upper concrete structure. The partition is assembled to the partition insert units of the upper and the lower concrete structures. The partition is formed by assembling a waste water transferring pipe(401). |
