Main Article Content
Abstract
Use of recycled aggregate in construction provides a promising solution to the problem of construction & demolition waste. Recycled aggregates not only stays out of landfills, but it also replaces other materials such as gravel which should be mined and transported for use. In all initiatives to recover aggregates, a full life cycle analysis is needed. The major quantity of recycled aggregate at present is used in lower end applications. Often the drive is to achieve complete recycling; however, the overall impact and best use of the materials should always be considered. Refining the recovery may result in less-grade product but at an environmental processing cost. At present, most recovered aggregate is used for road sub-base and civil engineering projects. From a sustainability viewpoint, these relatively low-grade uses currently provide the optimal outcome. Conservation of natural resources, saving of energy in production and transportation, and reduction of pollution are also the advantages of recycling.