Changes

*Coarse sand for LID construction shall be clean and free free of toxic materials.

<li>The coarse sand for LID construction shall be clean and free free of toxic materials.

*The pH of the sand shall be  ≤ 7.0. Manufactured sand from limestone or dolostone parent material is not acceptable.</li>

<li>The pH of the sand shall be  ≤ 7.0. Manufactured sand from limestone or dolostone parent material is not acceptable.</li>

*The coarse sand shall have a fineness modulus index between 2.8 and 3.1 according to [https://www.astm.org/Standards/C33 ASTM C33/C33M], or otherwise meet the gradation below.

<li>The coarse sand shall have a fineness modulus index between 2.8 and 3.1 according to [https://www.astm.org/Standards/C33 ASTM C33/C33M], or otherwise meet the gradation below.</li>

 

{|class="wikitable"

<table class = "table table-striped table-responsive">

|+ Particle size distribution

<caption><strong>Particle size distribution</strong></caption>

<tr class ='success'><th>Sieve</th><th>Percent passing</th></tr>

!style="background: darkcyan; color: white"|Sieve

<tr><td>9.5 mm</td><td>100</td></tr>

!style="background: darkcyan; color: white"|Percent passing

<tr><td>4.75 mm (No.4)</td><td>95-100</td></tr>

<tr><td>2.36 mm (No.8)</td><td>80-100</td></tr>

<tr><td>1.18 mm (No.16)</td><td>50-85</td></tr>

|9.5 mm||100

<tr><td>0.60 mm (No.30)</td><td>25-85</td></tr>

<tr><td>0.30 mm (No.50)</td><td>5-30</td></tr>

|4.75 mm (No.4)||95-100

<tr><td>0.15 mm (No.100)</td><td>0-10</td></tr>

<tr><td>0.75 mm (No.200)</td><td>≤ 3</td></tr>

|2.36 mm (No.8)||80-100

|1.18 mm (No.16)||50-85

|0.60 mm (No.30)||25-85

|0.30 mm (No.50)||5-30

|0.15 mm (No.100)||0-10

|0.075 mm (No.200)||≤ 3<

 

[[category: materials]]

[[category: materials]]