Clarification:
Dolomite is indeed a rock. Limestone is calcium carbonate, dolomite is magnesium carbonate...both rock types are extensive here in the great state of Missouri. For instance, the Jefferson City formation is largely comprised of dolomite. Here is the Wiki link -...
ASTM D7012 section 8.3 tries to address core moisture but does not really provide guidance for your situation.
What I have done in the past is just tried to approach it with a little practicality...
For relatively non-absorptive rock we often follow ASTM C42 which is for compressive strength...
EXPANSIVE SOILS by Nelson & Miller references Altmeyer (1955) and provides the following guidance about swelling soils:
less than 0.5% - Noncritical
0.5%-1.5% - Marginal
greater than 1.5% - Critical
I find these values to hold true for floor slabs on grade in the central USA - but are...
pelelo,
Sinkholes in Florida are a whole different animal than what we deal with in Missouri. I am amazed how they can grow laterally over a short time.
Pressure grouting followed by compaction grouting, in my Missouri experience, is normally done when "filled sinkholes" are present (either...
When we run simple swell tests (ASTM D 4546, Method B), we run them for 96 hours as well. If you plot the time rate of swell, it often takes 2 to 3 days to get past the initial and primary swell for really active soils. The last day of testing will define the secondary swell portion of the...
I deal with sinkholes routinely in Missouri. Ours are typically formed in in limestone and dolomite.
This method http://www.ei.lehigh.edu/envirosci/enviroissue/sin does work if you can find the opening and the opening is relatively small. To get down to the opening (sinkhole throat), we have...
I prefer the Humboldt version - with the tire-gauge design because it is a bit easier to read, $55 plus shipping, although the Gilson unit works fine.
https://www.humboldtmfg.com/humboldt-soil-penetrometer-tire-gauge-design.html
Now if you really want to get confused, take two hand...
