Difference between revisions of "Gravel"

Latest revision as of 20:43, 5 March 2018

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-All aggregates should meet the following criteria:
+#REDIRECT [[Aggregates]]
-<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>
-====Underdrains====
-<ul>
-<li>Granular material for underdrains should be clear crushed 50 mm diameter stone graded in accordance with ASTM D 2940. </li>
-<li>The void space ratio shall be 0.4 .</li>
-<li>A 100 mm layer of smaller grade pea gravel should be laid over the clear stone to reduce the chance of puncture damage to geotextile fabric. </li>
-</ul>
-{{:feedback}}
-[[Category:materials]]