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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..."
<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 revolutions and maximum of 50% for 500 revolutions</li>
</ul>
<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>
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