Difference between revisions of "Gravel"

Revision as of 10:51, 28 July 2017

Granular material for underdrains should be clear crushed 50 mm diameter stone graded in accordance with ASTM D 2940.
The void space ratio should be > 0.35 (or > 35%)

All gravel 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

@@ Line 1: / Line 1: @@
-All aggregates should meet the following criteria:
+<ul>
-*Maximum wash loss of 0.5%,
+<li>Granular material for underdrains should be clear crushed 50 mm diameter stone graded in accordance with [https://www.astm.org/Standards/D2940.htm| ASTM D 2940].</li>
-*Minimum durability index of 35,
+<li>The void space ratio should be > 0.35 (or > 35%)</li>
-*Maximum abrasion of 10% for 100 revolutions and maximum of 50% for 500 revolutions.
+</ul>
+All gravel should meet the following criteria:
-*Granular material for underdrains should be clear crushed 50 mm diameter stone graded in accordance with ASTM D 2940.
+<ul>
-*The void space ratio should be 0.4 (or 40%)
+<li>Maximum wash loss of 0.5%</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>Minimum durability index of 35</li>
+<li>Maximum abrasion of 10% for 100 revolutions and maximum of 50% for 500 revolutions</li>
+</ul>
+{{:feedback}}
 [[Category:materials]]