// CODE SNIPPET
1904.3.2 Calcium Chloride
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Calcium chloride as an admixture shall not be used in concrete to be exposed to those severe or very severe sulfate-containing solutions defined in Table 1904.3.
For SI: 1 pound per square inch = 0.00689 MPa.
| SULFATE EXPOSURE |
WATER SOLUBLE SULFATE (SO4) IN SOIL, PERCENT BY WEIGHT |
SULFATE (SO4) IN WATER (ppm) |
CEMENT TYPE | MAXIMUM WATER-CEMENTITIOUS MATERIALS RATIO, BY WEIGHT, NORMAL-WEIGHT AGGREGATE CONCRETEa |
MINIMUM f'c NORMAL-WEIGHT AND LIGHTWEIGHT AGGREGATE CONCRETE (psi)a |
||
|---|---|---|---|---|---|---|---|
| ASTM C 150 |
ASTM C 595 |
ASTM C 1157 |
|||||
| Negligible | 0.00 - 0.10 | 0 - 150 | |||||
| Moderateb | 0.10 - 0.20 | 150 - 1,500 | I, IP (MS), IS (MS), P (MS), I (PM)(MS), I (SM)(MS) |
0.50 | 4,000 | ||
| Severe | 0.20 - 2.00 | 1,500 - 10,000 | V | HS | 0.45 | 4,500 | |
| Very severe | Over 2.00 | Over 10,000 | V plus pozzoland |
HS plus pozzoland |
0.45 | 4,500 | |
- A lower water-cementitious materials ratio or higher strength may be required for low permeability or for protection against corrosion of embedded items or freezing and thawing (see Table 1904.2.2).
- Seawater.
- Pozzolan that has been determined by test or service record to improve sulfate resistance when used in concrete containing Type V cement.
- Pozzolan that has been determined by test or service record to improve sulfate resistance when used in concrete containing Type HS blended cement.
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