Главная | Blog | Форум
|
Блог Cement Concrete sewersThere is wide use of cement concrete sewers. These sewers are either constructed directly at the site or first it is constructed in the casting yeards of factories and then is transported to the site. The former product is known as cast-in-situ and the final product is known as precast. Cement concrete sewers are constructed by using the reinforced cast-in-situ where they cost less to be constructed or when there is a requirement of non-standard sections, or where there there is a demand for a special shape, or when the workspace and headroom is limited. Precast cement concrete sewers contain Precast cement concrete pipes. There are 2 types of Precast cement concrete pipes – pressure pipes and non-pressure pipes. The non-pressure pipes may be either reinforced or plain. The plain non-pressure pipes are constructed as per the requirements, with their internal diameters varying within the range of 80 mm to 450 mm and thickness of wall varies from 25 mm to 35 mm. Just like plain non-pressure pipes, the reinforced non-pressure pipes with their internal diameter varying within a range of 80 mm to 2600 mm and the thickness of the wall varying from 25 mm to 215 mm. The pressure pipes are reinforced invariably with their internal diameters varying in a range of 80 mm to 1200 mm and the thickness of the wall varying from 25 mm to 120 mm. The precast cement concrete pipes are available of different lengths varying from 2m to 3m. The reinforcement area in the reinforced cement concrete pipe contains the longitudinal reinforcement in the shape of straight bars of mild steel or hard stell and circumferential reinforcement in the shape of spiral or circular rings. The straight bars and spiral or circular rings are tied together to form a cage. Those pipes which have a wall thickness of 75 mm or less require a single reinforcement cage and pipes which have a wall thickness of more than 75 mm require a double reinforcement cage. For the treatment of cement concrete sewers, one can visit sewerex.com where he will get all types of treatment methods including drain Denver service and sewer replacement Denver. Generally, reinforced cement concrete pipes are used in the sewerage system, and for a limited case only, the plain cement concrete pipes are used in the sewerage system. The pressure pipes are used for submerged outfalls, pumping mains, inverted siphons, and for those gravity sewers where are absolute watertight joints are necessary and the non-pressure pipes are gravity flow. |
|
|
