CARBONATES TESTING

[geohec]

How does testing for carbonates in a soil sample affects a foundation recommendation. I had seen geotech companies testing SPT samples using a 1M HCL solution. How does testing for carbonates will help me during report writing.

My guess, could be to identify limestone presence in the sample?

geohec

 

[Ron]

It is to identify limestone or other calcareous combinations.

 

[mudman54]

cemented soils need to be correlated across the site. if you do the fizz test you can see how thick the cemented horizon is. take a close look at the sample when you drop the HCl on it; if it is grains of limestone or calcite crystals that is one thing. if the matrix fizzes you have a cemented horizon.