Base Options & Overview

Crushed Stone Base Construction

 

Base Options     

Concrete:
Requires minimum thickness (typically 4") for non-weight bearing loads per the standards of the geographic region. 2% slope is recommended. Broom finish is recommended.

Asphalt:
Requires minimum thickness (typically 2") for non-weight bearing loads per the standards of the geographic region. 2% slope is recommended.

Crushed Stone:
Quarry process, crushed limestone… such as is used under asphalt roads. A homogeneous mixture of fine and medium stone is applied in multiple layers and compacted using a mechanical compactor and/or roller to provide an even plane. The crushed stone base must be tightly compacted and smooth. A 2% slope is recommended.

• 95% Standard Proctor Compaction (as per ASTM Test) is of critical importance.
• Stone for the base must be crushed so it compacts to the above standard, and should be a homogeneous mix of sizes. Please contact us for a copy of the crushed stone specification.
• The minimum depth of the crushed stone base is 4”.  Typical thickness range is 4” - 6”. Crushed stone base layers thicker than 6” are more challenging to achieve the necessary 95% compaction rate throughout the base. Thickness is never to exceed 10”.
• Crushed stone base must be fully contained.
• A filter fabric is necessary for crushed stone bases only when tiles are installed. It is not used with Poured-in-Place or TurfTop Systems.

Regardless of the base option you select, proper drainage is critical to the longevity of the surfacing system. Inadequate drainage will cause premature breakdown of the poured or tile material in affected areas; and void the warranty.

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