Testing of Admixtures for Seabed Strengthening

by Arshud Mahmood, McClelland-EBA Inc, Anchorage, AK, USA,
Kelly S. Merrill, McClelland-EBA Inc, Anchorage, AK, USA,
Khoi M. Le, McClelland-EBA Inc, Anchorage, AK, USA,

Document Type: Proceeding Paper

Part of: Cold Regions Engineering


Samples from several offshore soil borings in an area of the Beaufort Sea were subjected to laboratory testing to determine the applicability of this method. The soils were mixed with varying amounts of cement, and compacted specimens were subjected to unconfined compression and direct shear tests. The factors studied included curing temperature, curing environment, curing time and cement content. The test results showed that overall strength gains for the representative curing conditions ranged from 2 to 8 times the untreated strength. Curing environment had the most significant influence. Further model and field testing is needed before the method can be applied in the Beaufort Sea for an actual structure.

Subject Headings: Curing | Soil tests | Soil strength | Soil cement | Sea floor | Cement | Strength of materials | Beaufort Sea

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