Test Your Knowledge of Floor Flatness and Levelness

by tanya_martins | April 14, 2025 10:12 am

[1]

This week’s quiz is from Concrete floors in diverse facilities: Key factors for optimal performance.[2] From curing methods to measurement standards, FF and FL values play a critical role in floor performance. See how well you understand the specs behind a smooth, level slab.

Quiz - Apr 15
1. What is the primary limitation of relying solely on ASTM E1155 FF/FL measurements for ensuring the final acceptability of concrete floors for floor covering installation?
2. Why is specifying very high FF/FL values (e.g., FF50/FL35) during design potentially counterproductive?
3. Which of the following best describes the main difference between the Division 03 FF/FL measurement and Division 09 straight edge method?

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Endnotes:
  1. [Image]: https://www.constructionspecifier.com/wp-content/uploads/2025/04/CS-APRIL-1.jpg
  2. Concrete floors in diverse facilities: Key factors for optimal performance.: https://www.constructionspecifier.com/concrete-floors-in-diverse-facilities-key-factors-for-optimal-performance/
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