The features of the contours are as follows: 1) Two contours of different elevations do not cross each other except in the case of overhanging cliff. 2) Contour drawn closer depict a steep slope and, if drawn far apart represents …
The difference between Height of Collimation Method (HCM) and Rise and Fall Method (RFM) are as follows: HCM :It is more rapid and saves a considerable time and labour.RFM : It is laborious as the staff reading of each station …
There are three types of Slump that may occur in slumps test, namelyTrue Slump, Shear Slump and Collapse Slump. True Slump refers to general drop of the concrete mass evenly all around without disintegration. Shear Slump implies that the concrete …
Fault Plane The interior of the earth becoming cooler day by day, which is sure to cause some shrinkage in the earth crust. The stink age is responsible for the stress to be developed withing the earth crust. These stresses, …
Warping is the bending of the concrete slab due to uneven expansion or contraction of top and bottom slab surfaces. It is caused by any differences in temperature above and below the slab or caused by the moisture differences. Warping …
PCU is Passenger Car Unit. For traffic analysis, all the vehicles are converted to car by multiplying with their PCU value. List of vehicles with their PCU value are : Motercycle : 0.5Bus ,Truck ,Tractor : 3.5Car : 1Bicycle: 0.2Horse …
Absorption generally refers to two phenomena, which are largely unrelated. In one case, it refers to when atoms, molecules, or ions enter some bulk phase – gas, liquid or solid material. For instance, a sponge absorbs water when it is …
This is a tutorial of the road design software called SW-ROAD. This software is made in Nepal and it is one of the most used and most easy software for designing the road. In this tutorial series, you will learn …
1) Lime: It makes the cement sound and strong. The lime in excess quantity makes the cement unsound and cause the cement to expand and disintegrate. 2) Silica: It provides strength to the cement due to the formation of dicalcium …
What is Coffer Dam? A temporary Structure concstructed in a river, lack etc. for ecvluding water from a gicen site to enable the building operation to be performed on the dry surface, is called a coffer dam. It may be …