ASTM G109
Full Name
ASTM G109 – Standard Test Method for Determining Effects of Chemical Admixtures on Corrosion of Embedded Steel Reinforcement in Concrete Exposed to Chloride Environments
Scope
ASTM G109 is a standard test method designed to assess the effectiveness of chemical admixtures in mitigating the corrosive effects of chloride ions on embedded steel reinforcement in concrete. This method is particularly relevant for coastal regions, where exposure to saltwater can lead to significant corrosion issues.
The test involves casting concrete specimens with and without the chemical admixture of interest. These specimens are then exposed to a chloride environment, either by immersion in a chloride solution or by application of a chloride-containing salt. Over time, the specimens are monitored for signs of corrosion, including rusting, cracking, or loss of bond between the steel and concrete.
The results of ASTM G109 can provide valuable information for engineers and architects in selecting appropriate chemical admixtures to protect steel reinforcement in concrete structures. By understanding the performance of different admixtures, it is possible to design more durable and long-lasting structures that can withstand the aggressive effects of chloride ions.
ASTM G109 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM G109 standard.
Our laboratory offers comprehensive testing services based on ASTM G109 to help you evaluate the efficacy of chemical admixtures in your concrete applications. Whether you are developing new products, assessing existing admixtures, or ensuring compliance with industry standards, our team can provide you with accurate and reliable results.
Contact us today to learn more about how our testing services can benefit your projects.
Resources
Keywords
chemical admixtures; chloride environments; corrosion; corrosivity; inhibitor; reinforcing steel; embedded steel reinforcement; concrete; ASTM G109; test methods; effects; determining; saltwater; rusting; cracking; loss of bond; concrete structures