期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：8
页码：6927
DOI：10.15680/IJIRSET.2015.0408031
出版社：S&S Publications
摘要：The continuous increase in road traffic in combination with insufficient maintenance due to paucity of funds has resulted in deterioration of road network in India. To improve this process there are several types of measures which are proven to be effective, like securing adequate funds for proper maintenance, effective and improved roadway design, use of better quality materials and use of effective and modern construction techniques. During last three decades in many countries around the world it has been tested that modification of the bituminous binder with polymer additives enhances the properties and life of asphalt concrete pavements. The present investigation was carried out to propose the use of plastic coated aggregate (PCA) in bituminous mix of flexible pavements in order to improve their performance and also to give a way for safe disposal of plastic wastes to provide a solution to threat of environmental pollution as well. There are two processes available for mixing of waste plastic in bituminous mixes namely wet and dry process. In this study the dry process was used for bituminous concrete mixes. The Marshall method of mix design was adopted using 80/100 grade bitumen to find the optimum bitumen content. Marshall specimens were prepared at bitumen content ranging from 4% to 6% with a increment of 0.5% by weight of aggregates and with waste plastic content of 0% , 6%, 8%, 10%, 12%, 14% and 16% by weight of optimum bitumen content. Marshal stability, Flow value, Marshal Quotient, Air voids (Vv), Voids in mineral aggregates (VMA), Voids filled with bitumen(VFB), and striping value were determined and compared with conventional aggregates (without plastic) bituminous concrete mixes. Comparison was also made by testing the physical properties of conventional and plastic coated aggregates (PCA). It was found that there was a considerable improvement in the properties of aggregates and bituminous mix leading to provide longer life and better pavement performance. The use of waste plastic in bituminous concrete mix thus contributes to construction of green roads and solves the problem of its safe disposal as well.
关键词：Marshal Stability; Flow value; Marshal Quotient; Air voids
