Recycled Concrete Aggregate: Properties, Limits and Uses
Crushing old concrete reduces quarrying and waste. Learn the properties of recycled aggregate, its higher absorption, suitable uses and how to control its quality.
Based on pavement design
Base and subbase
Subbase
Subbase material
A granular layer between subgrade and base that distributes load and improves drainage.
Based on pavement design
Properties and technical role
Subbase spreads the load received from base into the natural subgrade, while also acting as drainage and a barrier to subgrade fines.
Requirements for this layer are more flexible than for base, which makes regional materials possible while technical criteria are kept.
Applications
- Road sub-layers
- Site preparation
- Industrial floor sub-layers
Quality information
| Method | Test |
|---|---|
| ASTM C136 | Sieve analysis |
| ASTM C131 | Los Angeles abrasion |
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Base and Subbase: How Granular Layers Decide Pavement Life
Base and subbase layers spread traffic loads into the subgrade. Learn how the two layers differ, what their materials need and the key points of placing them.
Inquire about Subbase material
The grading on offer, stock and supply terms for this product are confirmed at the time of inquiry.