Difference between revisions of "Sand"

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*Coarse sand for LID construction shall be clean and free free of toxic materials.
*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>
*The pH of the sand shall be  ≤ 7.0. Manufactured sand from limestone or dolostone parent material is not acceptable.
*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.
*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.


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!style="background: darkcyan; color: white"|Sieve
!style="background: darkcyan; color: white"|Sieve
!style="background: darkcyan; color: white"|Percent passing
!style="background: darkcyan; color: white"|Percent passing
!style="background: darkcyan; color: white"|Header3
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|9.5 mm||100
|9.5 mm||100

Revision as of 16:38, 21 August 2017

  • 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.
  • The coarse sand shall have a fineness modulus index between 2.8 and 3.1 according to ASTM C33/C33M, or otherwise meet the gradation below.
Particle size distribution
Sieve Percent passing
9.5 mm 100
4.75 mm (No.4) 95-100
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<