Magnitude of frost grip as a function of water content, porosity, temperature and particle shape.

摘要

The effect of water content on the magnitude of frost grip is investigated for two sands, an angular, uniform sand and a natural sand of better gradation. The influence of the material to which the frozen soil adheres is also checked.;The influence of the depth of the molds used in the laboratory work on the experimental results is investigated and analysed.;Using two soil mixes the influence of silt and clay size particles on the relationships previously deduced is investigated. A soil mix is also used to determine if the rate of freezing has any effect on the results.;The influence of porosity of the soil is investigated in the next stage of the work, and these results, in conjunction with the results of the initial stage, allow a mathematical analysis over the theoretical range and the development of a general equation in the practical range of porosity and water content.