Civil Engineering PE

Category - Soil and Materials

What is the degree of saturation of a 600 cubic centimeter (cm3) soil sample given the following values from its three-phase diagram?

Volume of air: 100 cm3
Volume of solids: 320 cm3
  1. 30%
  2. 64.3%
  3. 87.5%
  4. Not enough information provided
Explanation
Answer: B - The degree of saturation of a 600 cm3 soil sample with the given volumetric values is 64.3%.

Solution: Use the following equation to determine the degree of saturation, S

S = (volume of water ) / (volume of voids)

= Vw / Vv

given Vv = (total volume) - (volume of solids)

Vv = 600 - 320 = 280 cm3

and Vw = VT - Vv - Vs

Vw = 600 - 100 - 320 = 180 cm3

Therefore S Vw / Vv = (180 cm3 /280 cm3) x 100

= 64.3%
Was this helpful? Upvote!
Login to contribute your own answer or details

Top questions

Related questions

Most popular on PracticeQuiz