TABLE 10.1
Effects of Various Chemicals on Concrete
Chemical
Effect on Concrete
Chemical Plants
Acid waters pH 6.5 or less
Disintegrates slowly
Ammonium nitrate
Disintegrates
Benzene
Liquid loss by penetration
Sodium hypochlorite
Disintegrates slowly
Ethylene
Disintegrates slowly
Phosphoric acid
Disintegrates slowly
Sodium hydroxide, 20% and above
Disintegrates slowly
Food and beverage plants
Almond oil
Disintegrates slowly
Beef fat
Solid fat disintegrates slowly,malted fat
morer eadily
Beer
May contain, as fermentation products,
acetic, carbonic, lactic, or tannic acids
which disintegrate slowly
Buttermilk
Disintegrates slowly
Carbonic acid (soda water)
Disintegrates slowly
Cider
Disintegrates slowly
Coconut oil
Disintegrates slowly
Corn syrup
Disintegrates slowly
Fish oil
Disintegrates slowly
Fruit juices
Disintegrates
Lardo rlard oil
Lardd isintegrates slowly,l ard oil more
quickly
Milk
No effect
Molasses
Disintegrates slowly above 1208 F/498 C
Peanut oil
Disintegrates slowly
Poppyseed oil
Disintegrates slowly
Soybean oil
Disintegrates slowly
Sugar
Disintegrates slowly
Electric generating utilities
Ammonium salts
Disintegrates
Coal
Sulfides leaching from damp coal may
oxidize to sulfurous or sulfuric acid,
disintegrates
Hydrogen sulfide
Dry,n oeffect; in moist oxidizing
environments converts to sulfurous
acid and disintegrates slowly
Sulfuric acid (10–80%)
Disintegrates rapidly
Sulfur dioxide
With moistureforms sulfurous acid
which disintegrates rapidly
Pulp and paper mills
Chlorine gas
Slowly disintegrates moist concrete
Sodium hypochlorite
Disintegrates slowly
Sodium hydroxide
Disintegrates concrete
Sodium sulfide
Disintegrates slowly
Sodium sulfate
Disintegrates concrete of inadequate
sulfate resistance
Tanning liquor
Disintegrates if acid
Coatings for Concrete
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