Abstract
The present study focuses on the importance of characterization of waste/post consumer polymers. In recent years sophisticated instrumental techniques played an important role in identification and characterization of polymers. Advances in computer techniques have been combined with analytical instruments to give analytical speed, resolution and minimal sample requirements unimagined a few years ago. The present study deals with the development of modified binder formulations from plastomer and elastomer type waste with an aim to minimize nonbiodegradable the post consumer polymer waste as well as environmental hazard, to meet this objective ten different samples have been picked up from several kinds of waste so as to cover different categories of polymeric waste from the domestic, industrial as well as medical waste. The samples were characterized using thermal characterization techniques like DSC (differential scanning calorimetry) and TGA (thermo gravimetric analysis). The melting and oxidative degradation behavior of polymer waste helped in sustainable waste management through developing the various modified bitumen formulations of commercial importance for highway industry. Modified binder formulations were initially characterized as per the relevant standards (code of practice) to ascertaining their suitability for above said application. The physical properties of modified binders are within the specified limits. Marshall stability, indirect tensile strength and creep modulus behaviour have been evaluated and discussed in this study to prove their dual benefits like waste minimization and suitability of such binders to be used for durable roads.
Highlights
Developing countries such as India are undergoing a massive migration of their population from rural to urban centres
As per capita income rises, more savings are spent on goods and services
India will probably see a rise in waste generation from less than 40,000 metric tones per year to over 125,000 metric tones by the year 2030
Summary
Developing countries such as India are undergoing a massive migration of their population from rural to urban centres. Modern urban living brings on the problem of waste, which increases in quantity and changes in composition with each passing day[2]. India is already facing plastic disposal problems of the kind faced in the developed world, which is fast running out of space for landfills to control nonbiodegradable waste. One conventional solution to this crisis lies in recycling waste in to useful products. Almost all these types of waste can be recycled up to four or five times. Consumption, linked to per capita income, has a strong relationship with waste generation. India will probably see a rise in waste generation from less than 40,000 metric tones per year to over 125,000 metric tones by the year 2030
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