Corrosion performance tests for reinforcing steel in concrete : test procedures.

Details

• Alternative Title:
  Project title: Corrosion performance tests for reinforcing steel in concrete
• Creators:
  Trejo, David ; Halmen, Ceki
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Corrosion
  • Corrosion tests
  • Corrosion resistant steel
  • Reinforcing bars
  • Reinforced concrete pavements Steel bars--Corrosion
  • Reinforcing bars--Corrosion
  • Pavements, Reinforced concrete
• Publication/ Report Number:
  FHWA/TX-09/0-4825-P1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Product; Sept. 2003-Aug. 2008.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  The existing test method to assess the corrosion performance of reinforcing steel embedded in concrete, mainly ; ASTM G109, is labor intensive, time consuming, slow to provide comparative results, and often expensive. ; However, corrosion of reinforcement is a major challenge to the performance and long-term durability of ; infrastructure systems. Improvements in the corrosion performance of materials could add significant value to ; the infrastructure. New procedures and test methods are needed to assess the corrosion performance of ; potentially value-adding materials. This study evaluated four accelerated test procedures: the mini-macrocell ; (MM) test, the concrete chloride ion assessment (CCIA) test (also referred to as the concrete corrosion ; inhibitor association test), the accelerated chloride threshold (ACT) test, and the modified G109 test. Results ; from the accelerated tests were compared with results from the standard ASTM G109 results. The rapid MM ; test proved to be relatively simple, and researchers recommend that it be used to assess the relative ; performance of several material systems. The CCIA and ACT tests are recommended only when the critical ; chloride threshold of a reinforced system is needed. These tests are more complex and expensive to perform ; than the MM test. This product provides the procedures for performing these tests. The modified G109 test ; can continue to be used, but test durations are still relatively long.
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• Format:
  PDF
• Funding:
  Project 0-4825
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16969/dot_16969_DS1.pdf
• File Type:
  [PDF - 343.25 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ed8d7d8096c3773d1f62f64343f25d05bdd35a4dd306f3cc6ed9498ab7f75c7bafff2b1bee2e0bf87e02a5457910b749b0c879faecec6d519bd8d724e7326c7a