In architecture, a pipe crossing through an RCC (Reinforced Cement Concrete) wall requires careful planning to maintain structural integrity and prevent potential issues such as leakage, vibration, or damage to the wall. Proper provisions are made during construction by incorporating sleeves or conduits — typically PVC, GI, or steel pipes — placed within the wall before concreting.
These sleeves create a controlled passage for service pipes while avoiding direct contact with the concrete, reducing the risk of cracking due to thermal expansion or movement. Additionally, waterproofing measures like sealants, grouting, or rubber gaskets are applied around the pipe to prevent moisture infiltration.
In cases of large pipes or high-pressure systems, structural reinforcements such as extra rebar or concrete collars may be added to ensure the wall’s strength is not compromised. Proper detailing in architectural and structural drawings ensures these crossings are safely integrated into the building’s overall design, balancing functionality, durability, and aesthetics.
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Pipe crossing through RCC wall detail drawing – 1
A pipe crossing through an RCC wall involves several key components to ensure proper installation and durability. Here’s a detailed description of the setup without using an image:
Sleeve Provision:
- Install a sleeve pipe (usually PVC, GI, or steel) through the RCC wall before concreting.
- The sleeve diameter should be 25–50 mm larger than the service pipe to allow for expansion and sealing.
Reinforcement Consideration:
- Add extra reinforcement bars around the opening to maintain the wall’s structural integrity.
- In high-load areas, provide stirrups or additional ties around the pipe crossing zone.
Sealing and Waterproofing:
- After pipe installation, apply non-shrink grout or cement mortar to fill the gap between the sleeve and the service pipe.
- Use a waterproof sealant like polyurethane or silicone to prevent moisture ingress.
- For higher protection, apply a rubber gasket or water stop ring around the pipe.
Pipe Support:
- Provide pipe clamps or brackets on either side of the wall to support the pipe and reduce stress at the crossing.
- In long pipe runs, include expansion joints to accommodate thermal movement.
Finishing:
- Ensure the concrete around the pipe is compacted properly to avoid voids.
- After curing, finish the surface with plaster or epoxy coating if necessary, ensuring a smooth, waterproof finish.
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