Explain plasticity chart. Give the procedure for classification of a given soil by plasticity chart
Share
Get Access to:
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
A graph between liquid limit and plasticity index in percentage that can be used for classifying fine-grained soils as per the Indian Standard Soil Classification Systems called a plastic chart. According to it if more than 50% of soil passes through a 75micron sieve, then it is classified as fine-grained soil.
 The procedure for classification of a given soil by plastic chart according to ISSCS is a plasticity chart, depending on the values of liquid limit (WL) and plasticity index (IP). The ‘A’ line is illustrated as IP is  0.73 (WL – 20).  fine soils are split up into clays(C), silts (M), and organic soils (O). High plasticity: WL> 50% Low plasticity: WL< 35% Intermediate plasticity: 35% < WL< 50%.