Recycling of Construction and Demolition Waste Material for Energy Savings in India

Abstract

Buildings are an integral part for development in any sector of economic growth and they consume resources not only during their construction but also for operation throughout their life. The design, construction, operation, maintenance, and ultimately the removal of buildings consume large amounts of energy, water, and building materials, and generate large quantities of waste, and pollute the air and water. The amount of resources consumed, waste generated can be judged from the fact that in any development project, the component of construction is quite large.The Indian construction industry has accounted for approximately 50% of the country's capital outlay in successive Five Year Plans, and projected investment continues to show a growing trend. Out of 48 million tonnes of solid waste generated in India, C&D (construction and demolition) waste makes up 25% annually. Despite this the use of recycled material in construction is not much, which can largely be attributed to various factors like lack of awareness on the part of designers/engineers, lack of awareness campaigns and appreciation of using recycled materials, unorganized market of recycled construction material, absence of a proper solid waste management system in urban areas, lack of tax incentives and poor implementation of legislation on the use of recycled materials. It is high time that the above said issues about the use of recycled material in construction in our country be addressed so as to achieve economy in construction coupled with easing burden on natural resources thereby resulting in cleaner environment.

Demolition Waste Glass Usage in the Construction Industry

“…It is rather difficult to bring cross-country comparisons of CDW due to different definitions of CDW are applied across countries. It should be also noted that the use of recycled material in construction is not sufficient in some countries, which can largely be attributed to various factors like lack of awareness on the part of designers/engineers, lack of awareness campaigns and appreciation of using recycled materials, unorganized markets of recycled construction material, absence of a proper solid waste management system in urban areas, lack of tax incentives, and poor implementation of legislation on the use of recycled materials [9]. Nowadays, the US (recovery rate 76%) and EU-27 (recovery rate 90%) are considered more developed and urbanized CDW generators as they have much less CDW generated compared with other countries like China (recovery rate 10%), for example [10].…”

The Structure and Properties of Asphalt Concrete on the Basis of Waste Foundry Sand

“…The use of waste in other industries, not in the education sector, can provide synergistic effects, new materials with improved performance or consumer properties without large economic costs. Such examples can be developed technologies for the use of various wastes of industrial production, agriculture and communal services construction for obtaining new or increasing the efficiency of existing building materials [1][2][3]. For example, to activate cement, it is proposed to use ash from sugarcane straw and ash from the incineration of municipal solid waste.…”

The Use of Polymer Materials in the Composition of Asphalt Concrete

“…It is possible to reduce the cost by using industrial and consumer waste in the structure of asphalt concrete, which makes it possible to obtain asphalt concrete with increased physical and mechanical properties at a low cost. [1][2][3][4][5] The composition of the asphalt concrete mixture includes a large mineral aggregate (crushed stone), which constitutes the main power frame of the asphalt concrete, small mineral materials (sand, mineral powder) that regulate the mobility of bitumen and fill the voids in the structure. Bitumen of various viscosity is used as a binder material, which combines mineral materials of various sizes into a single monolith.…”