suction test on swelling clays 1

[fyaure]

I wouold like to know how suction test is performed on swelling clays. Please also suggest website, publication or books realted to the subject. I want to know at least the basics as soon as possible.

 

[saradis]

Try the nice and easy filter paper method. You will find the procedure in most soil testing books. For your results try the formula developed from a current study of Chandler's and Guitierrez's:
Log10 Pk = 4.84 - 0.0622 wp (for filter paper moisture content < 47%)
Log10 Pk = 6.05 - 2.481 Log10 wp (for filter moisture content > 47% )
where Pk is the soil suction and
wp is the moisture content of the filter paper