Report No. : GEO Report No. 365

Report Title : Test Method for Unconfined Compressive Strength of Cement Stabilised Soil Cores (2023), 69 p.

Author : F.L.F. Chu & P.W.K. Chung

Abstract

Since the publication of the "Interim Guidelines on Testing of Unconfined Compressive Strength (UCS) of Cement Stabilised Soil Cores in Hong Kong" in 2017, much experience has been gained in respect of testing cement stabilised soil. Several studies have been carried out by the Geotechnical Engineering Office in collaboration with local practitioners and academia. This report presents the review of several updated international/national and local testing standards related to the UCS test, experience accrued in testing, findings of the studies and recommendations to enhance the test method. An updated test method is promulgated accordingly. To standardize the practice of preparing laboratory mixed specimens, a procedure including the mixing and the curing process for stabilised soil specimens is also proposed.

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