Frost Heave Tests Research Articles

A Comparison of the T.R.R.L. and C.R.R.E.L. Tests for the Frost Susceptibility of Soils

The frost susceptibility criteria and laboratory frost heave tests of tte United Kingdom Transport and Road Research Laboratory (T.R.R.L.) and the United States Army Cold Regions Research and Engineering Laboratory (C.R.R.E.L.) were compared by testing four stabilized pulverized fuel ashes. The two tests led to very similar frost susceptibility classifications. The T.R.R.L. frost heave test was considered to be the more suitable test since it uses a simpler test procedure that also allows all specimens in a batch to be subjected to the specified test conditions.

The development of frost heave testing equipment

The paper presents details of the development of a deep freeze cabinet and of a cold room for carrying out the Road Research Laboratory frost heave test and the results obtained in the two testing facilities are compared. The majority of the tests reported were undertaken on burnt and on unburnt colliery shale, both in their natural state and when stabilised with cement, and an indication is given of the scatter in the results of tests on nominally similar specimens. The paper includes mention of a commercial deep freeze unit developed as a result of the work reported in the paper.