Quality Control in Concrete Construction

When preparing concrete, on-site engineers use locally available materials of various properties to come up with the ultimate mixture. It is for this reason that the strength of the concrete will vary from one batch to the other in the fullness of time. Moreover, this variation in strength is dependent on the quality of material … Read more

Determination of Field Density of soil by drive cylinder (core cutter) method (AASHTO T204 -90)

Knowing the density of soil at field is of utmost importance for a transportation and civil engineer. The Soil under the action of load consolidates and settles due to empty pores and spaces and also due to expulsion of moisture and air within those pores and interstices. The densification of soil is due to removal, … Read more