subgrade soil stabilization is one of the primary and major processes in the construction of any highway; also environmental authorities are concerned about the growing amount of polyethylene (pet) bottles produced by household sectors. this research in order to study effect of adding recycled polyester fiber on soil engineering properties, especially shear strength and california bearing ratio...

Highway widening has become an effective way to improve the carrying capacity of existing expressways. However, assume that differential settlement between new and old subgrades is not controlled. In case, it will lead longitudinal cracks on pavement, which seriously affect safety vehicles. this study, variations elastic modulus dynamic under traffic load were studied by tests. A hyperbolic mod...

The design process for a pavement structure assumes that the subgrade will saturate at some point during service life, however, saturation of depends on conditions depending region in which it is located. Therefore, necessary to study partially saturated subgrade. present research aims implement spectrum RAMCODES curves unsaturated soils, applied flexible pavements under environmental and traff...

Long term monitoring of pavement requires a cost effective and sustainable power supply strategy. We developed an energy harvest system that can be installed in the pavement structure. The system can harvest energy from the temperature difference between the pavement surface and the subgrade soil using thermoelectric modules. In this paper, through computer-aided simulations, we come up with an...

–A detailed investigation has done Redmud an Alluminium industrial waste product has done to study its feasibility for use in road constructions. In this study Redmud was stabilized with 2, 4, 6, 8,10and 12 percentages of lime and unconfined compressive strength, Split tensile strength and California bearing ratio tests were conducted at 1, 3, 7 and 28 days curing periods respectively. From the...

The modulus of a soil is one of the most difficult soil parameters to estimate because it depends on so many factors. Therefore when one says for example:”The modulus of this soil is 10,000 kPa”, one should immediately ask: “What are the conditions associated with this number?” The following is a background on some of the important influencing factors for soil moduli. It is not meant to be a th...

In this study, an artificial neural network was developed in order to analyze flexible pavement structure and determine its critical responses under the influence of standard axle loading. In doing so, more than 10000 four-layered flexible pavement sections composed of asphalt concrete layer, base layer, subbase layer, and subgrade soil were analyzed under the impact of standard axle loading. P...

 In pavement design, the CBR and direct shear tests are two very common laboratory investigations for predicting the strength of a subgrade layer. The relationship between the CBR and water content has been commonly presented in analyses, with the result of the direct shear being expressed from the aspect of effective cohesion and the internal friction angle. Even though most natural soil is in...

In this research a laboratory investigation has been performed on the soil from different locations of Gujarat, India to Correlate Optimum moisture content (OMC) Dynamic Cone Penetration (DCP) test values with strength parameters of subgrade. In-situ condition has been made in laboratory using bigger testing mould and various tests like Liquid Limit, Plastic limit as well as CBR, PBT, UCS and D...

Present paper deals with the development of a Mechanistic-Empirical model strain-based design perpetual road pavement using Odemark's principle. The bituminous which can withstand minimum traffic 300 msa has been classified as in this paper. considered three-layered system top layer mix followed by unbound granular materials rest on soil subgrade. constituent thickness determined limiting radia...