Estimate the Materials for an Underground Water Tank

Posted by Rajib Dey on October 1st, 2023

Introduction

Building an underground water tank requires careful planning and estimation of the materials involved. From excavation to concrete work and the installation of gauges, pipes, and valves, each step of the process requires accurate calculations. In this article, we will explore the various materials needed for constructing an underground water tank and discuss how to estimate their quantities.

Also Read : Basic Thumb Rule for Overhead Water Tank Design

Excavation

The first step in building an underground water tank is excavation. This involves digging a hole of the desired dimensions to accommodate the tank. The length and width of the excavation depend on the size of the tank, while the depth is determined by factors such as the internal depth, density of the RCC (Reinforced Cement Concrete) floor, and density of the PCC (Plain Cement Concrete) work.

To calculate the quantity of excavation required, multiply the length, width, and depth of the hole. For example, if the length is 5.40 meters, the width is 3.40 meters, and the depth is 2.35 meters, the total excavation volume would be 43.15 cubic meters.

Concrete Work

Once the excavation is complete, the next step is to carry out concrete work, which includes PCC and RCC. PCC is used to provide a stable base for the tank, while RCC strengthens the structure and forms the walls and slab.

To estimate the quantity of PCC and RCC required, consider the dimensions of the tank and the thickness of the respective layers. The density of the RCC slab is typically 15 cm, while the density of the RCC wall is around 20 cm. The density of the PCC layer is also taken into account.

Also Read : Concrete Water Tank Construction

Steel Reinforcement

Steel reinforcement is essential in RCC construction as it adds strength and stability to the structure. Typically, 1% of the total volume of RCC is used for steel reinforcement. This percentage may vary depending on the specific requirements and design of the tank.

To estimate the quantity of steel required, calculate 1% of the total volume of RCC. For example, if the total volume of RCC is 43.15 cubic meters, the quantity of steel needed would be 0.43 cubic meters.

Dado Work, PVC Stop, Stairs, Gauges, Pipes, and Valves

In addition to excavation, concrete work, and steel reinforcement, there are other materials involved in building an underground water tank. These include dado work, PVC stop, stairs, gauges, pipes, and valves. The quantities of these materials depend on the design and specifications of the tank.

Ensure that you take into account all the necessary materials and their respective quantities when estimating the materials for an underground water tank. Consider the specific requirements of the project and consult with experts if needed to ensure accurate calculations.

Conclusion

Estimating the materials for an underground water tank is a crucial step in the construction process. Accurate calculations of excavation, concrete work, steel reinforcement, and other materials are essential for a successful project. By following the guidelines and formulas discussed in this article, you can ensure that you have the right quantities of materials for building a durable and efficient underground water tank.

Remember to consult with professionals and use reliable estimation techniques to ensure the accuracy of your calculations. Building an underground water tank involves careful planning and attention to detail, and accurate material estimation is key to its success.

Additional Information

• It is important to consider factors such as soil conditions, water table levels, and local building codes when planning and estimating an underground water tank.
• Seek professional guidance for complex projects or if you are unfamiliar with estimation techniques.
• Regular maintenance and inspection of the tank are necessary to ensure its longevity and functionality.