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ISSN 2063-5346
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USE OF IRON ORE TAILINGS IN POTHOLE PATCHING MIXTURES AS A REPLACEMENT FOR CONVENTIONAL AGGREGATES

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Dr. Vivek N. Waghmare, Dr. Prajakta Pavan Shirke, Dr. Mrs. Kamini Ashutosh Shirsath
» doi: 10.31838/ecb/2023.12.s3.124

Abstract

A pothole is a depression in the road's surface, often made of asphalt, where the pavement has been damaged by driving. Typically, vehicles travelling over the damaged region and water in the underlying soil structure are to blame. Traffic then wears down and cracks the inadequately supported asphalt surface in the affected region after water affects the underlying soil. In order to produce a hole in the pavement, continued driving activity ejects both the asphalt and the underlying soil layer. As iron ore concentrate is beneficiated, a type of solid waste called iron ore tailings (IOTs) is created. IOTs are one of the most prevalent solid wastes in the world among all types of mining solid waste because of their huge output and low usage ratio. These iron ore tailings can be utilised in pothole filling mixes in place of traditional aggregates entirely. The creation of pothole filling solutions from iron ore tailings will aid in the extensive usage of these wastes. The Marshall stability test, which involves preparing the mould and assessing the mold's strength after 24 hours of setting time, has been used to determine the ideal binder concentration. According to the test results, the ideal binder percentage is 5 percent of the aggregates' total weight, or 1200 grammes, of which aggregates were used. Kerosene and bitumen were mixed in a proportion of 30% to 70% to create the cutback bitumen.

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