1 Can a Liquid Limit test be run on sand Yes or No 2 ASTM is

1- Can a Liquid Limit test be run on sand? Yes or No

2- ASTM is an abbreviation for_________ ________ for _________ and __________

3- What are two ways a Standard Proctor is different from a Modified Proctor?

4- _________________ receding from the last Ice Age deposited many of the soils found in northern North America. (“ice” is not the answer…..).

Solution

1. No, why because the liquid limit (LL) is conceptually defined as the water content at which the behavior of a clayey soil changes from plastic to liquid. So it is not applicable for sandy soil.

2.American Society for Testing and Materials

3. Differences like

a. The Rammer Weight, (5.5 lbs for standar proctor test) & (10 lbs for modified proctor test)

b. compaction force (The heavier hammer weight and higher drop distance involved in modified Proctor procedures results in more compaction energy)

c.Number of Layers (3 for standar proctor test ) & (5 for  modified proctor test )

d. omc obtained for standard proctor test is more than modified proctor test.

4. Great ice sheet

About 20,000 years ago the last great ice sheet retreated from the northern United States.