AASHTO T-259 and ASTM C1202/AASHTO T-277 Chloride Ion (Salt) Permeability
AASHTO T-259 Test Results — Summary of Chloride Ion Penetration, % Chloride Ion
|Test Condition||1.6mm to 13mm||13mm to 25 mm|
CreteDefender virtually eliminates the threat of salt damage and of chloride ion penetration, a leading cause of deterioration of reinforcement (rebar). In tests conducted by Bowser-Morner, a leading independent testing laboratory, chloride (salt) penetration in concrete treated with CreteDefender was cut by 55% in tests of CreteDefender performed in accordance with the AASHTO T-259 standards. In this test, samples were subjected to 90 days of ponding of a 3% chloride solution.
ASTM C-1202/AASHTO T-277 Test Results — Summary of Chloride Ion Permeability, in Coulombs
|Test Condition||Air Entrained at 5.1%||Non-Air Entrained|
|Untreated||6173 (high)||7806 (high)|
|Treated||2849 (moderate)||3089 (moderate)|
Bowser-Morner also conducted tests in accordance with the ASTM C-1202/AASHTO T-277, which measure the changes in electrical current conducted through the concrete, to determine chloride ion concentration. In these tests, treating concrete with CreteDefender cut chloride (salt) permeability by 54% in air entrained concrete and 60% in non-air entrained concrete. These results indicate that corrosion of rebar and the resulting deterioration of the concrete will be delayed by years, if not eliminated entirely.