Effects of rebar and concrete construction joints on the migration of 4 M HNO{sub 3} in concrete test cylinders

Technical Report · Tue Jun 01 04:00:00 EDT 1993

DOI:https://doi.org/10.2172/10102789· OSTI ID:10102789

Brewer, K N

This report describes experiments designed to test the effects of rebar and concrete cold joints on the migration of 4M HNO{sub 3}. Worst case conditions were used in these tests to determine rebar and cold joint effects on acid migration and concrete degradation. These conditions include: (1) a 1 inch diameter hole directly over the rebar/cold joint to simulate a leak, (2) a nitric acid concentration of 4 molar, (3) a continuous supply of fresh acid contacting the rebar/cold joint, and (4) a continuous agitation of the acid caused by stirring. These unrealistic test,conditions were used to intentionally cause as much concrete damage as possible in the short time required to perform the test (4--6 months).

• Research Organization: Westinghouse Idaho Nuclear Co., Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC07-84ID12435
• OSTI ID: 10102789
• Report Number(s): WINCO--1125; ON: DE94000723
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360604
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
42 ENGINEERING
420500
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
CONCRETES
CONTAINMENT SYSTEMS
CORROSION, EROSION, AND DEGRADATION
JOINTS
MATERIALS TESTING
NITRIC ACID