Experimental insights into the carbonate content measurements on marine soils
Experimental insights into the carbonate content measurements on marine soils
Carbonate soils are often encountered in offshore renewable energy and oil and gas projects. Carbonate content of soil may be determined by a gasometric method, which measures the pressure produced by the chemical interaction between carbonate in soil and hydrochloric acid (HCl). This pressure is directly proportional to the equivalent carbonate content, as determined through a calibration curve. This study investigates the carbonate content of seven marine soil samples from various different continents. Results show that the time to stabilize the chemical reaction is consistent across regions. However, a reaction between the chamber material and HCl occurs about two hours after the test begins, potentially leading to innacurate results. A simple chamber modification is suggested to eliminate this interference. This research underscores the importance of refining the testing setup to ensure reliability under specific conditions.
Maiely Minozzo; Jeong-Yun Won; K. Nguyen
5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG2025)
2 - Site characterization, in-situ and laboratory testing, measurement
https://doi.org/10.53243/ISFOG2025-602
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