Reinforced Concrete Septic Tank Design

The tanks can be made in different shapes usually circular and rectangular shapes are mostly used.

Reinforced concrete septic tank design.

The following design characteristics have a critical impact on the performance of on site wastewater tanks. Overhead on ground or underground water tanks. The walls and floor of the tank are 10 cms 4 inches thick reinforced concrete providing sufficient strength to withstand water pressure and a reasonable amount of earth movement. Concrete strength reinforcing steel placement and openings shall also be considered in the design.

Unlike steel or high density polyethylene septic tanks concrete septic tanks gradually strengthen with time and are able to withstand extreme load conditions with low susceptibility to damage during backfill. Structural design of the septic tanks shall be by calculation or by performance. Concrete mix design concrete must have a minimum compressive strength of 4 000 psi at 28 days. The design depends on the location of tanks i e.

Septic tanks are the first vital element of an onsite wastewater treatment system. Concrete thickness the concrete thickness must be sufficient to meet minimum reinforcement cover requirements and withstand design loading conditions. Rice concrete limited produces both one and two section septic tanks ranging in size from 2840 litres 625 gallons to 4800 litres 1056 gallons in both standard and low profile design. A wall with openings between the floor and roof of the tank separates the chambers.

Septic tank should be watertight and constructed of bricks masonry stone masonry or sometimes concrete. 2009 parts i iv. The design of reinforced concrete water tank is based on is 3370. Septic tank design it has one end connected to an inlet from the toilets and sometimes an outlet connected to the drain field.

Some septic tank design has 2 chambers while others have 3. We are the largest manufacturer of septic tanks in the western united states. It is rectangular in plan and length is 2 4 times of breadth. The tanks can be made of reinforced concrete or even of steel.

Generally two compartments are provided with a partition wall at a distance of 2 3 rd of the inlet. Jensen precast has been making septic tanks since 1968. The septic tank used in conjunction with one of the many treatment and dispersal options comprises a complete onsite wastewater. Capacity shape compartments influent and effluent pipes baffles and outlet devices and openings in top slab.

The physical design requirements include.