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Line 1: − Clean, washed, sand, free of toxic materials+ − Coarse concrete sand, ASTM C33/C33M Fine Aggregate, with a Fines Modulus Index between 2.8 and 3.2.+ − Sand shall be clean, sharp, free of limestone, shale and slate particles. Manufactured coarse sand shall not be permitted. (Jen: WHY?)+ − pH: ≤ 7.0+ − + Line 17:
Line 17: +
no edit summary
<ul>
<li>The coarse sand for LID construction shall be clean and free free of toxic materials.
<li>The pH of the sand shall be ≤ 7.0. <br> Manufactured sand from limestone or dolostone parent material is not acceptable.</li>
<li>The coarse sand shall have a fineness modulus index between 2.8 and 3.1 according to ASTM C33/C33M, or otherwise the gradation below.</li>
</ul>
<table class = "table table-striped table-responsive">
<table class = "table table-striped table-responsive">
<caption><strong>Particle size distribution</strong></caption>
<caption><strong>Particle size distribution</strong></caption>
</table>
</table>
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[[category: materials]]
[[category: materials]]