Using brick ballast for concrete flooring on the first and second floors is not a recommended construction practice in modern building standards. Brick ballast refers to a layer of bricks laid on a concrete slab to reduce the amount of concrete used, thus saving costs. However, there are several reasons why this method is outdated and unsuitable for most modern constructions:
Structural integrity: Brick ballast does not provide adequate structural support for the concrete floor. It can lead to uneven load distribution, causing the concrete slab to crack or fail over time.
Moisture and dampness: Bricks can absorb moisture, and when placed in contact with the concrete, they may retain water. This can lead to dampness issues, weakening the concrete and promoting the growth of mold and mildew.
Uneven surface: The irregular shape and size of bricks can result in an uneven surface, making it challenging to achieve a level and smooth concrete floor.
Long-term durability: Concrete floors are expected to last for many years, and using brick ballast might compromise the long-term durability and stability of the flooring.
Instead, modern construction practices typically use reinforced concrete slabs for flooring on both the first and second floors. The thickness of the concrete slab will depend on various factors, including the load it needs to support, the spacing of supporting beams or columns, and the specific requirements of the building codes in your region.
For residential buildings, the concrete slab thickness for the first and second floors is often within the range of 4 to 6 inches (10 to 15 centimeters). However, for commercial or industrial buildings, the thickness may be greater, depending on the expected loads and usage.
To ensure the structural integrity and longevity of the concrete flooring, it is essential to engage a qualified structural engineer or a licensed professional who can design the appropriate concrete slab thickness based on the specific requirements and conditions of the building. Following local building codes and industry standards is crucial to ensure a safe and reliable construction process.