Difference between revisions of "Sand"
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− | *Coarse sand for LID construction shall be clean and | + | [[File:PSD sand.jpg|thumb|Particle size distribution graph for ASTM C33 sand, as described in table]] |
− | *The pH of the sand shall be ≤ 7.0. | + | |
+ | *Coarse sand for LID construction shall be washed clean and free of toxic materials. | ||
+ | *The pH of the sand shall be ≤ 7.0. | ||
*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 | ||
− | |||
|- | |- | ||
|9.5 mm||100 | |9.5 mm||100 | ||
|- | |- | ||
− | |4.75 mm (No.4)||95-100 | + | |4.75 mm (No.4)||95 - 100 |
|- | |- | ||
− | |2.36 mm (No.8)||80-100 | + | |2.36 mm (No.8)||80 - 100 |
|- | |- | ||
− | |1.18 mm (No.16)||50-85 | + | |1.18 mm (No.16)||50 - 85 |
|- | |- | ||
− | |0.60 mm (No.30)||25- | + | |0.60 mm (No.30)||25 - 50 |
|- | |- | ||
− | |0.30 mm (No.50)||5-30 | + | |0.30 mm (No.50)||5 - 30 |
|- | |- | ||
− | |0.15 mm (No.100)||0-10 | + | |0.15 mm (No.100)||0 - 10 |
|- | |- | ||
− | |0.075 mm (No.200)||≤ 3 | + | |0.075 mm (No.200)||≤ 3 |
|} | |} | ||
[[category: materials]] | [[category: materials]] |
Latest revision as of 18:48, 15 September 2020
- Coarse sand for LID construction shall be washed clean and free of toxic materials.
- The pH of the sand shall be ≤ 7.0.
- 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.
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 - 50 |
0.30 mm (No.50) | 5 - 30 |
0.15 mm (No.100) | 0 - 10 |
0.075 mm (No.200) | ≤ 3 |