// CODE SNIPPET
1904.3.2 Calcium Chloride
JUMP TO FULL CODE CHAPTER
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.
Related Code Sections
1904.3.2 Concrete, Calcium Chloride
Calcium chloride as an admixture shall not be used in concrete to be exposed to those severe or very severe sulfate-containing solutions defined ...
NYC Building Code 2008 > 19 Concrete > 1904 Durability Requirements > 1904.3 Sulfate Exposures > 1904.3.2 Calcium Chloride
Article 16 Sprinkler Systems [PDF] (page 40)
through a drying chamber containing calcium chloride, in order to avoid the introduction of moisture into the system. Air compressors shall be provided ...
Article 16 Sprinkler Systems [PDF] (page 5)
to freezing temperature, unless used in a dry pipe system or a system filled with calcium chloride solution or other approved non-freezing solution ...
2103.1 Masonry, Concrete Masonry Units
Concrete masonry units shall conform to the following standards: ASTM C 55 for concrete brick; ASTM C 73 for calcium silicate face brick; ASTM C 90 ...
NYC Building Code 2014 > 21 Masonry > 2103 Masonry Construction Materials > 2103.1 Concrete Masonry Units
2512.8.1 Gypsum Board and Plaster, Admixtures
When using this method of application, calcium aluminate cement up to 15 percent of the weight of the portland cement is permitted to be added ...
NYC Building Code 2008 > 25 Gypsum Board and Plaster > 2512 Exterior Plaster > 2512.8 Alternate Method of Application > 2512.8.1 Admixtures