Swelling strain interpretation
Swelling strain interpretation
(OP)
Dear all,
I got different swelling test results and don't know how to decode them. I searched for the information but found nothing :( That is why I need your help.
Does anyone know what 20% of swelling strain mean? I need something like table with certain criteria, like: 0-5% of swelling is very low, 5-10 is low, 10-15 is meduim and etc.
Thanks in advance.
I got different swelling test results and don't know how to decode them. I searched for the information but found nothing :( That is why I need your help.
Does anyone know what 20% of swelling strain mean? I need something like table with certain criteria, like: 0-5% of swelling is very low, 5-10 is low, 10-15 is meduim and etc.
Thanks in advance.





RE: Swelling strain interpretation
RE: Swelling strain interpretation
RE: Swelling strain interpretation
Swelling test was done on samples from the existing working so there are some small shallow foundations. Swelling (and other) tests were done to find the reason for soil settlement under some foundations. Test was done according to BS standard (1377).
nagatalluri,
20% of swell is vertical, i.e. 20% of the initial height of sample (which was 20mm).
The problem is I could not find any criteria for that, but I can't tell this to client as he needs to hear something specific. What do you mean when saying "this classification is project specific"?
RE: Swelling strain interpretation
Ron,
In pavement geotechnics especially in subgrade soils, we talk about volumetric swell (swell in all directions). When the soil is expansive lets say the volumetrc swell is above 10%, lime or cement treatment is recommended. Lime/cement treatment reduces the swell and improves the workability of soils. Though swell may not reduce to Zero, transportation agencies depending on the type of road (low volume or highway)specify the acceptable swell. This what I mean "project specific"
RE: Swelling strain interpretation