slaking


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slaking

[′slāk·iŋ]
(geology)
Crumbling and disintegration of earth materials when exposed to air or moisture.
The breaking up of dried clay when saturated with water.
References in periodicals archive ?
RP] values between the slaking cycles is also determined to assess the potential long-term degradation of the investigated samples.
The use of the slake durability test does not adequately explain the slaking behavior of siltstones because the fragmented samples acquire high slake durability index but are highly degraded.
They found that the effect of aggregate slaking on [K.
The slaking value (SLV) of each soil sample with each ESP value was calculated by using Eqn 2:
In order to determine the effects of the slaking process on seal formation, Lado et al.
These results suggest that, when the clay soil is wetted at a fast rate, the slaking mechanism played an important role in seal formation, while in the soils with clay content [less than or equal to] 41%, the effect of slaking on seal formation was less important.
Soil slaking is the process of fragmentation that occurs when rapid wetting produces failure of dry, unstable soil aggregates, as a consequence of differential swelling and pressure by entrapped air (Quirk and Panabokke 1962).
Slaking measurements were made on 10-mm-diameter air-dry aggregates taken below the surface crust, which was present only in few cultivated plots.
The reduction in slaking of surface aggregates as carbon content is increased by a period under grass, for example, is well established.
Supplementary tests carried out on the September samples included a visual check of slaking by dropping air-dried aggregates weighing about 0.
The extent of slaking, swelling, and dispersion and the relative importance of the processes controlling them were found to depend on the salinity and sodicity of the soil (Shainberg and Letey 1984; Abu-Sharar et al.
The electrolyte concentration corresponding to these EC levels prevented clay dispersion caused by ESP, and the HC was expected therefore to be affected mainly by slaking and clay swelling (Oster et al.