Permeability of Granular Soil using constant Head Permeameter

Similar to the constant head permeameter, there is one more test called falling head permeameter in which fall of head is related to the permeability of the soil sample, Before going to the detail of what the test is we must understand what is permeability? So by general or lay man terms; permeability may be … Read more

What is pile foundation? What are the Uses of different types of Piles?

A pile is a long slender foundation member, made either of timber, structural steel or concrete which might be cast-in-situ or driven and acts as a structural member to transfer the load of the structure to a required depth in deep foundations carrying a load which may be vertical or lateral or lateral plus vertical … Read more

California Bearing Ratio (CBR) for determining Shear Strength of subgrade

California Bearing Ratio (CBR) test is a compressive nature penetration test. It was originally developed by Caltrans i.e. California Department of Transportation after World War II i.e. in the late 1930s.  The test is specifically used to determine the mechanical strength as well as the potential strength of road subgrades and basecourses materials including the … Read more

How to Classify Soil according to AASHTO?

American Association of State Highway and Transportation Officials (AASHTO) has devised a Soil Classification system; so you can find here how to classify soil according to AASHTO classification system.  Soil although has many definition but for civil engineers it is the material on which and by which engineers build their structures, due to the diversified … Read more