Behavior of Concrete Exposed to Different Concentrations of Ammonium Nitrate and Sulfate Solutions

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Title: Behavior of Concrete Exposed to Different Concentrations of Ammonium Nitrate and Sulfate Solutions

Author(s): U. Schneider and S.-W. Chen

Publication: Special Publication

Volume: 192

Issue:

Appears on pages(s): 433-450

Keywords: chemical attack; concretes; corrosion; durability; high-strength concrete

Date: 4/1/2000

Abstract:
The behavior of ordinary concrete and high strength concrete under chemical attack was studied over a period of more than 5 years. The concrete specimens were immersed in a variety of chemical solutions including 5%, 2.5%, .5% and .1% ammonium sulfate, and 10%, 5%, 1% and .1% ammonium nitrate. The strength and weight changes, and the penetration depths of the attacking ammonium nitrate ions into the specimens were measured. The influence of the initial concrete strength and the concentration level of the aggressive solution on the behavior of the immersed concretes were evaluated.