Testing Chloride Content and Penetration Capability within Concrete
Session Number
Project ID: ENGN 3
Advisor(s)
Dr. Mohsen A. Issa; University of Illinois at Chicago
Discipline
Engineering
Start Date
22-4-2020 8:50 AM
End Date
22-4-2020 9:05 AM
Abstract
The purpose is to measure the penetration capability of chloride within unknown specimens of concrete. To measure chloride within a specimen is to measure the structural integrity of concrete when chloride provided materials introduce the possibility of corrosion in steel reinforcements. Following standard cement mixing procedure, four concrete solutions were mixed in addition to control. Every specimen was composed of: Wcement = 3.137 lbs., Wwater = 1.568 lbs., Wsand = 7.842 lbs., Wgravel = 8.626 lbs., with varying amount of known sodium chloride added beginning with the control of no added chloride. Added chloride is relative to the calculated limit for a 0.0857 lbs. per cubic inch sample, spanning from below to above the limit of 0.0105-0.0210 lbs. The samples were chipped and ground finely into powdered form to run through a series of the American Society for Testing and Materials (ASTM) approved chloride permeability tests to assess the accuracy at which chloride is present.
The purpose of testing the accuracy of the method is to establish a procedure to thoroughly and authentically calculate chloride permeability within bridge samples. Further testing requires levels of different depth of sample to be collected utilizing a precision drill. Future samples will run through both acid-soluble and water-soluble chloride detecting tests regulated by the ASTM standard testing methods. The results of chloride content will be graphed against depth to establish a profile of the penetration capability of both acid-soluble and water-soluble chloride within the concrete sample laid.
Testing Chloride Content and Penetration Capability within Concrete
The purpose is to measure the penetration capability of chloride within unknown specimens of concrete. To measure chloride within a specimen is to measure the structural integrity of concrete when chloride provided materials introduce the possibility of corrosion in steel reinforcements. Following standard cement mixing procedure, four concrete solutions were mixed in addition to control. Every specimen was composed of: Wcement = 3.137 lbs., Wwater = 1.568 lbs., Wsand = 7.842 lbs., Wgravel = 8.626 lbs., with varying amount of known sodium chloride added beginning with the control of no added chloride. Added chloride is relative to the calculated limit for a 0.0857 lbs. per cubic inch sample, spanning from below to above the limit of 0.0105-0.0210 lbs. The samples were chipped and ground finely into powdered form to run through a series of the American Society for Testing and Materials (ASTM) approved chloride permeability tests to assess the accuracy at which chloride is present.
The purpose of testing the accuracy of the method is to establish a procedure to thoroughly and authentically calculate chloride permeability within bridge samples. Further testing requires levels of different depth of sample to be collected utilizing a precision drill. Future samples will run through both acid-soluble and water-soluble chloride detecting tests regulated by the ASTM standard testing methods. The results of chloride content will be graphed against depth to establish a profile of the penetration capability of both acid-soluble and water-soluble chloride within the concrete sample laid.