1Scholar, Department of Civil Engineering, OITM, Hisar, India
2Assistant Professor, Department of Civil Engineering, OITM, Hisar, India
Online published on 21 November, 2017.
The Major District Road are the secondary road in India. They carry most of India's freight and passenger traffic. Major District Road presently totalling to a length of about 4, 67, 763 km, MDR & SH both combine carry nearly 40 per cent of the traffic, and are the most important category of roads. Flexible pavements are those, which on the whole have low or negligible flexural strength and are rather flexible in their structural action under the load. The service life of a flexible pavement is typically designed in the range of 10 to 20 years. Required thicknesses of each layer of a flexible pavement varies widely depending on the materials used, magnitude and number of repetitions of traffic loads, environmental conditions and the desired service life of the pavement. The latest design method of IRC: 37–2012 is mechanistic approach of design and incorporates the use of non conventional & conventional kinds of materials in the base but in sub-base only conventional kind of material is used. The stretch of MDR-108 between Tosham to Bhiwani is taken for the study. The required data are collected from PWD B&R Bhiwani which include traffic data, CBR value and VDF. Using the data, the cumulative design traffic in standard axles is calculated for the design life. Finally using the cumulative standard axles and effective CBR value, the pavement has been designed for period of 20 years, using IRC 37: 2012 guidelines of flexible pavement design.
Design, Flexible pavement, traffic, cumulative standard axles, CBR, VDF, thickness of pavement
