Difference between revisions of "Gravel"
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<p>All aggregates should meet the following criteria: | <p>All aggregates should meet the following criteria: | ||
<ul> | <ul> | ||
| − | <li>Maximum wash loss of 0.5%</li> | + | <li>Maximum wash loss of 0.5%.</li> |
| − | <li>Minimum durability index of 35</li> | + | <li>Minimum durability index of 35.</li> |
| − | <li>Maximum abrasion of 10% for 100 revolutions and maximum of 50% for 500 revolutions</li> | + | <li>Maximum abrasion of 10% for 100 revolutions and maximum of 50% for 500 revolutions.</li> |
</ul></p> | </ul></p> | ||
<p>Granular material for underdrains should be clear crushed 50 mm diameter stone graded in accordance with ASTM D 2940. The void space ratio shall be 0.4 .</p> | <p>Granular material for underdrains should be clear crushed 50 mm diameter stone graded in accordance with ASTM D 2940. The void space ratio shall be 0.4 .</p> | ||
Revision as of 00:12, 30 June 2017
All aggregates should meet the following criteria:
- Maximum wash loss of 0.5%.
- Minimum durability index of 35.
- Maximum abrasion of 10% for 100 revolutions and maximum of 50% for 500 revolutions.
Granular material for underdrains should be clear crushed 50 mm diameter stone graded in accordance with ASTM D 2940. The void space ratio shall be 0.4 .