Saad Iqbal Abrasion is known as process of scraping or wearing something away, technically speaking; abrasion in geology is the mechanical scraping of a rock surface by friction between rocks and moving particles during their transport by wind, waves, gravity, running water or erosion. The intensity of this erosion effect depends on the hardness, concentration, velocity and … Read more
Sand replacement test method is used to determine the field density or in-place density of earth embankments, road fills, sub-grade, sub-base or any of compacted material. This method serves as base upon which one can accept the density of a compacted material to a specified magnitude or to a percentage of maximum unit dry density … Read more
In any construction project it is obligation of a contractor to establish a well equipped material testing laboratory. Quality Control Manager or Quality Control Inspector has a team along with Material Engineer from consultant end and one material engineer from the contractor\’s end. Both of these persons try to optimize the quality standards and thus … Read more
The purpose of this book is to familiarize civil engineering and construction technology students withtwo of the most important materials of construction, Portland cement (PC) and Portland cement con-crete (PCC). People frequently make the error of using these terms interchangeably. It is important tokeep in mind that PC is a powder, while PCC is initially … Read more
Concrete pavements have been used for highways, airports, streets, local roads, parking lots, industrial facilities, and other types of infrastructure. When properly designed and built out of durable materials, concrete pavements can provide many decades of service with little or no maintenance. Concrete generally has a higher initial cost than asphalt but lasts longer and … Read more