Hi, How you doing?As we know that the design of a pavement is governed by the analysis so, this is very important to know the various combinations of stresses that will be induced in the slab. There are two kinds of loading: Traffic Loading Temperature variation. Traffic loading will induce the compressive or tensile stresses […]
Critical Stress Combination for Rigid Pavements Read More »
Flash and fire point (open) test apparatus( courtesy: Aimil Ltd.) Hi, I am going to explain flash(open) and Fire point test. AIM: To find out the flash and fire point of a given bitumen sample using open cup. APPARATUS: Flash and Fire point apparatus (Open Cup). This apparatus consist of the a test cup, heating
FlashPoint (Open cup) and Fire point Test – Highway Engineering Lab Read More »
As per IRC(Indian Roads Congress), Stopping sight distance is such a distance, along the centreline of the road, that any obstruction of 0.15 m, at the other end, must become visible to the eye of a driver at a height of 1.2 m from the road surface. In order to analyse the stopping sight distance
Factors Affecting the Stopping Sight Distance on Road Read More »
In this method of pavement design, we use the Tri-axial shear test to determine the Elastic modulus of the sub-grade material or those of the other layers. Boussinesq’s equation is used to determine the thickness of the pavement. In order to include the factors, amount of traffic and rain-fall ‘X’ and ‘Y’ are multiplied to
Tri-axial Method of Flexible Pavement Design Read More »
Hi,Road margins are the various cross sectional elements of the road except the carriageway or pavement width. Various road margins are shoulders, foot-paths, cycle-tracks, frontage paths, driveways, lay byes, side slopes and guide rails. I will discuss each, one by one. Shoulders: Shoulders are the parts of the formation width except carriage ways. In other words,
Road Margins – Highway Engineering Read More »
Hi,I hope GATE 2014 was a good experience for you. I don’t remember values and figures but language of the questions can make you remind the question so, I will post here the manner in which the question was to be solved.This post contains the questions asked in set I(9:00AM to 12:00PM). I will keep
Solution- GATE 2014 -Civil Engineering- set -I Read More »
Hi, Group Index method of flexible pavement design is an empirical method which is based on the physical properties of the soil sub-grade. To design the thickness of the pavement you have to go through the following steps: Â Find out the Group Index Value(GI) of the soil. Use the design charts to find out
Group Index Method of Pavement Design Read More »
