Companies occupying retail space and warehouse operators, for the most part want flat floors. They may be interested in appearance or functionality depending on the intended use of the floor.

It is recommended that the designer/architect/engineer understand the owner’s requirements and specify these parameters in the contract documents in F Numbers.

The FACE Company solved a vague and misunderstood specification about floor tolerances and gave the industry a method to specify and measure floor levelness and flatness in the 1980’s. The F Number system is now an ACI standard and is widely accepted in the industry.

Did you know that...

• Concrete is a combination of a) water, b) cement, c) small aggregate [sand], and d) large aggregate [gravel, rocks & stones].
• Aggregates are of different sizes and shapes.
• Cement is the glue that holds all the aggregates together.
• Water 'kick starts' the process to make the cement become glue for the aggregates (hydration).
• Placed concrete (from any source) will have trapped air in it – up to 20%.
• Vibration a) moves and settles the aggregates within the concrete and b) removes the air [consolidates the concrete for additional strength and fills voids in the finished product].
• Vibration VPM – 11,000 VPM +/- 500 VPM consolidates concrete most effectively.