Museum Concrete Flooring

Introduction:

Nationwide concreting were asked to undertake a concrete floor installation for a new industrial tank unit at Bovington Tank Museum Dorset. Supplying all labour (16 operatives), plant and materials to instal concrete floor slabs measuring approximately 3719m2.

Production process:

1. Membrane Installation: To enhance the waterproofing and durability of the concrete floor, a 1200 gauge polythene membrane was laid down prior to pouring the concrete. This heavy-duty membrane serves as a barrier against moisture ingress, which is critical for preventing damage to the concrete from below. The thickness of the membrane ensures that it withstands the weight and pressure of the concrete during the curing process, thereby contributing to the longevity of the floor.

2. Reinforcement Structure: The concrete floor was reinforced using two layers of A193 mesh fabric, specifically chosen for its strength and reliability. The A193 mesh provides excellent tensile strength, preventing cracking and ensuring that the concrete can withstand heavy loads and dynamic stresses typical in industrial environments. The dual-layer approach enhances the floor's overall structural integrity, especially in areas subject to high impact or frequent movement of equipment.

3. Concrete Slab Segmentation: To optimize the construction process, the total area was divided into three separate slabs. This segmentation allows for more manageable pouring and finishing, reducing the risk of defects and ensuring a more uniform surface. Each slab was treated as an individual project, with precise attention given to the installation processes.

4. Finishing Techniques: After pouring, each slab received a fully shined power float finish. This finishing technique not only enhances the aesthetic appeal of the concrete floor but also contributes to its functionality. The power floating process helps achieve a smooth, dense surface that is resistant to wear, making it ideal for environments with high foot and vehicle traffic. After finishing, each slab was cured and sealed to protect against environmental factors, ensuring that the surface remains durable and visually appealing.

5. Movement Joint Installation: To accommodate the natural expansion and contraction of the concrete, sawn restrained movement joints were cut into the slabs the following day. These joints are essential for preventing cracking and ensuring that the floor can adapt to temperature changes and structural shifts over time. Properly executed movement joints extend the lifespan of the concrete floor and maintain its performance under varying conditions.