In many ground improvement projects the preliminary field testing method is different from the tests that are carried out later. Hence, it may be necessary to correlate the two tests for comparative purposes. Dynamic Compaction, using pounders weighing up to 35 tons, has been used to treat 175,000m² of hydraulically reclaimed carbonate sands with a thickness of about 16m for a port expansion project in Ras Laffan, Qatar. In this project CPT was used before and after ground improvement works. A number of Pressuremeter tests (PMT),
some in the immediate vicinity of the CPT locations, were also carried out. This paper shall briefly describe the project and the ground improvement works. Previously published literature correlating CPT to PMT will be reviewed and the results of the two testing methods that have been carried out in Ras Laffan shall be correlated, and conclusions will be made based on the findings.