Download AASHTO Soil Classification Excel Spread Sheet [XLSX]

AASHTO stands for American Association of State Highway and Transportation Officials. Developed in 1992 a comprehensive soil classification system that helps field engineers in estimating the general properties and characteristics of the soil encountered during the foundation preparation and other relevant construction works.  After the first publication the classification system…continue reading →

Soil Salinity Reasons and Treatment?

If the concentration of harmful salts in the root zone of a plant increases to such an extent that plant growth is effected, this situation is called Salinity.Salinity is the measure of all the salts dissolved in water. Salinity is usually measured in parts per thousand (ppt or % ).…continue reading →

Causes of Liquefaction of Soil

You might have been to a beach or near a river bank, have you ever noticed the cohesion-less sands there? I am currently working in a project which is in a mountain range with river crossing through and is actually construction of a dam, during my travelling so many timesI…continue reading →

To Determine Plastic Limit Of Soil

When the soil is added with water enough to make it paste like material it is termed as plastic state; in this state the soil can be molded into any shape without breaking and thus called plastic. If more water is added into the soil it will start flowing like…continue reading →

Ingredients of Soil Cement

Soil Cement is a low cost paving material when used as a base in the pavements for protection of subgrade, or used as a facing material for earth fill dams where suitable riprap is not available, or used as a bedding of drainage concrete heavy pipes, or is also used…continue reading →

Download Soil Mechanics in Engineering Practice by Karl Terzaghi, Ralph B. Peck, Gholamreza Mesri [PDF]

Soil mechanics originated several decades ago under the pressure of necessity. As the practical problems involving soils broadened in scope, the inadequacy of the scientific tools available for coping with them became increasingly apparent.Efforts to remedy the situation started almost simultaneously in the United States and in Europe, and within…continue reading →

What are Stresses in Soil, Over burden Pressure, Total Stress, Effective Stress, Pore water Pressure

The Structural loads are supported on soil through foundations. These loads produce stresses and resulting strains or deformations in the soil below the foundation. The deformation in the vertical direction is usually termed as settlement, which occurs due to the vertical stresses.Stresses in a Soil MassThe stresses which produce excessive…continue reading →

Download Rock Slope Engineering & Civil and Mining by Duncan C Wyllie & Christopher W Mah [PDF]

A variety of engineering activities require excavation of rock cuts. In civil engineering, projects include transportation systems such as highways and railways, dams for power production and water supply, and industrial and urban development. In mining, open pits account for the major portion of the world’s mineral production. The dimensions of…continue reading →
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