Difference between revisions of "Gravel"
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Jenny Hill (talk | contribs) (Created page with "<p>All aggregates should meet the following criteria: <ul> <li>Maximum wash loss of 0.5%</li> <li>Minimum durability index of 35</li> <li>Maximum abrasion of 10% for 100 revol...") |
Jenny Hill (talk | contribs) |
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<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> | </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 .