On 23rd August, an important milestone was reached at the CRP, Savar project with the successful casting of the bottom slab for the rainwater harvesting tank. This step marks a crucial phase in the development of a sustainable water management system designed to mitigate water scarcity and promote eco-friendly practices.
Project Overview
The rainwater harvesting system at CRP, Savar, is engineered to collect and store rainwater, providing an alternative water source for various uses. The reserve tank is a key component of this system, and the bottom slab is integral to ensuring its structural stability and longevity.
Bottom Slab Specifications
The bottom slab, which serves as the foundation of the tank, has been cast with a thickness of 1 foot, designed to withstand the load of the stored water and the external pressures from the surrounding soil. A concrete mix ratio of 1:1.5:3 was utilized, ensuring the slab's durability and strength. This mix comprises one part cement, 1.5 parts sand, and three parts coarse aggregate, combined with the appropriate amount of water to achieve the desired workability and consistency.
Execution Process
The casting process involved several critical steps:
Formwork Installation: Before casting, the formwork was carefully installed to define the slab's shape and dimensions. It was secured to prevent any movement during the pouring of concrete.
Reinforcement Placement: Steel reinforcement bars were strategically placed within the formwork, following the design specifications. This reinforcement is essential to enhance the slab's tensile strength and prevent cracking under load. You can see the rod placement : click here
Concrete Mixing: The concrete was mixed on-site in concrete mixing machine, ensuring a consistent mix ratio of 1:1.5:3. The quality of the mix was closely monitored to achieve the required compressive strength.
Pouring and Compaction: The concrete was poured into the formwork and evenly distributed across the entire slab area. Compaction was performed using vibrators to eliminate air pockets and ensure a dense, homogenous slab.
Curing: After pouring, the slab was covered and cured for several days to maintain moisture and promote proper hydration of the cement. Curing is essential to achieving the desired strength and durability of the slab.
Significance of the Slab Casting
The completion of the bottom slab marks a significant step forward in the rainwater harvesting project at CRP, Savar. This slab forms the foundation of the tank, which will play a crucial role in storing and utilizing rainwater, reducing the reliance on groundwater, and contributing to a sustainable water management system in the area.
As the project progresses, the focus will now shift to constructing the walls and roof of the tank, further advancing towards the completion of this vital infrastructure. The rainwater harvesting system, once operational, will be a model for sustainable practices, promoting water conservation and environmental stewardship.
Conclusion
The successful casting of the bottom slab for the rainwater harvesting tank at CRP, Savar, is a testament to the careful planning and execution of the project team. With sustainability at the core of this initiative, the tank will serve as a valuable resource in managing water effectively, benefiting the community and the environment alike.
This project underscores the importance of integrating eco-friendly solutions in construction and the positive impact such initiatives can have on local resources and overall sustainability.
Here are some pictures related to the topic
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