Geotechnical Engineering is the specialty of Civil Engineering which deals with the property
and behavior of soil and rock in engineering purposes. For getting different properties of soil,
different soil tests are performed. Some tests are performed at field which are called field test.
Sometimes soil from field is collected and is tested at laboratory with equipment that is called
laboratory test. This Lab manual mainly deals with the common and universal laboratory tests
of different types of soil. Field identification tests of soil and laboratory tests like- grain size
analysis by sieve and hydrometer; specific gravity test; moisture content determination test;
organic content determination test; Atterberg limits test; permeability tests; unconfined
compression test; compaction test; relative density test; direct shear tests; consolidation test
are described according to ASTM (American Standards for Testing Materials). This Lab
manual was prepared with the help of “Soil Testing for Engineers” by T Willium Lambe;
some lecture notes from BUET (Bangladesh University of Engineering and Technology),
Lecture notes on “Engineering Properties of Soil based on Laboratory Testing” by Prof.
Krishna Reddy, UIC and some others.
A S M Fahad Hossain
Department of Civil Engineering
Ahsanullah University of Science and Technology