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When compacting road base how thick should the layers of material be to obtain proper compaction?
Wiki User
∙ 14y ago
Most aggregate material compacts to 90% for a road base, losing from 18 - 27% of its initial (loose) volume. So, in terms of thickness, count on having the initial spread of the material being about 25% thicker than you want the final compacted thickness to be.
However, this may depend on the particular aggregate you are putting down. Your supplier may be able to supply you with more accurate information, and should have good experience in this area related to their product(s).
Wiki User
∙ 14y ago
To obtain proper compaction, the layers of road base material should typically be compacted in 4 to 6-inch thick lifts. This allows for better control over the compaction process and ensures that the material is uniformly compacted throughout the layer. Additionally, using thinner lifts helps prevent the potential for uneven settling and improves the overall stability and durability of the road.
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