MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

Landfill leachate is created via decomposition of landfill waste transported by water percolation through the soil layers. If the landfill sites are not designed properly then the leachate simply passes through the soil layers. This may create an adverse effect on the engineering properties of soil, as well as on the chemical properties viz. adsorption and retention of heavy metals. In the present study, an experimental work was carried out to examine the effects of landfill leachate contamination on the soil properties viz. physiochemical and geotechnical of an active Municipal Solid Waste (MSW) dumping site located near Pune city, India. The soil samples were collected from three different locations (at 150 m spacing) and leachate was collected from the treatment plant, located in the premises of the dumping site. The test result shows that the leachate containing the highest concentration of metals, Biochemical Oxygen Demand (BOD), and Chemical Oxygen Demand (COD). The soil sample in close proximity to the MSW dumpsite is most contaminated as compared to the furthermost soil samples, because of the high contents of organic pollutants and heavy metals. The present study clearly indicates that if the leachate is permitted to drain straightway into the surface water or infiltrates in to the groundwater it can cause adverse effect on human health and environment. © 2022

School of Civil Engineering

Engineering and Technology

Materials Today: Proceedings

Study of soil properties affected by leachate – A case study at Urali-Devachi, Pune, India

Fulltext

Indian Journal of Science and Technology

Strength and Swelling Behavior of Black Cotton Soil Stabilized with Waste Rubber Tyre

The road network in India is growing at an exponential rate. The biggest challenge in this scenario is an availability of good-quality pavement materials at a reasonable rate. The demands of these pavement materials are increasing at an accelerated rate due to which good-quality material available in nature is getting depleted rapidly. This may create a threat to the environment in the near future. The rate of depletion may be reduced to a certain extent by adopting measures, viz. use of recycled pavement materials, stabilization of locally available poor-quality materials, and use of reinforced pavement. Assessment of such measures in a limited time is the biggest challenge. This challenge may be tackled by using full-scale accelerated pavement testing setup. However, the full-scale accelerated pavement test is not readily available. Over the globe, accelerated pavement testing setups are developed at only a few universities and research institutes. This paper presents the development details of a full-scale laboratory accelerated pavement testing setup. The calibration of the applied axle load is also presented. The developed full-scale laboratory accelerated pavement testing setup will prove opportunity to test new material/technique which will build up the confidence due to gain of knowledge. This paper also aims to investigate the variation of vertical stress and deformation at the base–subgrade interface of geotextile-reinforced and unreinforced pavement using the developed pavement testing facility.

World University root node

Innovative Infrastructure Solutions

Development of full-scale laboratory accelerated pavement testing facility: a step toward performance assessment of geosynthetics reinforced pavement

This paper examines the behavior of full-scale unreinforced and geotextile reinforced unpaved road using an indigenously developed full-scale laboratory accelerated pavement testing set up. The models of the unpaved road were subjected to 35,000 loading cycles of standard axle load. The effect of reinforcement on the vertical stress distribution at the base–subgrade interface was investigated. The test results show that the inclusion of geotextile significantly reduced the magnitude of vertical stress in the reinforced road as compared with the unreinforced road. This reduction of vertical stress magnitude is comparable to 9°–16° increases in the stress distribution angle; this may be attributed to stretching of the geotextile due to the tendency of lateral spreading of aggregates in the base course. The limited number of load cycles confirmed the lateral restraint of base course aggregates by the geotextile reinforcement and thus a reduction in the magnitude of vertical stress. The test results also confirmed about 22% reduction in base course thickness due to geotextile reinforcement, thus one step towards sustainability by saving of the expensive natural base course aggregate.

International Journal of Geosynthetics and Ground Engineering

Full-scale laboratory accelerated test on geotextile reinforced unpaved road

Number of laboratory studies; have shown that geosynthetics reinforcement improves the performance of flexible pavement either by ex-tending the service life or by savings in base course thickness. In spite of the good laboratory evidence for the geosynthetics reinforced flexible pavement, the mechanism that enables and governs the reinforcement function is still unclear [1]. Cyclic laboratory test has been one of the ways, used for assessing/evaluating the soil-geosynthetic interaction mechanisms. In such a tests contribution of geosynthetics prop-erties, interface shear provided by geotextiles and interlocking provided by geogrids when used under or within the base course of flexible pavement are mainly concentrated. This paper reviews literature of laboratory model studies carried out by various researchers over the globe. This review indicates that, appreciable improvement due to geosynthetics reinforcement depends upon various factors viz. location of geosynthetics, geogrid aperture size, geosynthetics properties, mainly stiffness, variation of base course thickness and strength of subgrade soil. The findings of these laboratory studies are also correlated with the same nature of field studies finding.

International Journal of Engineering & Technology

Geosynthetics reinforced flexible pavement-Review of laboratory studies

Indian Higways

Geosynthetics reinforced flexible pavement: gateway of the sustainable pavement

The amount of construction waste has been dramatically increased in the last decade, and social and environmental concerns on the recycling of the waste have consequently been increased. Waste concrete is particularly crucial among the construction wastes. Recent technology has also improved the recycling process. In this rapid industrialized world, recycling construction material plays an important role to preserve the natural resources. This study aims to evaluate physical properties of concrete using recycled coarse aggregate. In this research concrete waste is from demolished structure (Near Kamla Nehru Park, Bhandarkar Rd, Pune) has been collected and coarse aggregate of different % is used for preparing fresh concrete. The amount of recycled coarse aggregate used in this research is approximately 125 kg. Many researchers state that recycled aggregates are only suitable for non-structural concrete application. This research, however, shows that the recycled aggregates that are obtained from concrete specimen make good quality concrete. The compressive strength of recycled coarse aggregate (RCA) is found to be higher than the compressive strength of normal concrete when used upto a certain %. Recycled aggregate concrete is in close proximity to normal concrete in terms of split tensile strength. The slump of recycled aggregate concrete is more than the normal concrete. At the end it can be said that the RCA upto 50 % can be used for optaining good quality concrete.