Abstract

Construction is a part of human evolution, in ancient times people used wood and stone as construction materials as they were obtained naturally. As time passed, we learned about new methods and materials of construction. We started using concrete, steel, and asphalt as construction materials but these materials were costly and also had ill effects on the environment. In modern times construction techniques should be eco-friendly and economical as well. So, recycling construction and demolition waste is an option to deal with these problems. Reclaimed asphalt pavement (RAP) is a type of construction and demolition waste, which can be recycled after proper treatment. Reclaimed asphalt pavement materials are obtained from the milling of road pavement during reconstruction or maintenance work. These materials are mainly coarse aggregates and asphalt binders. The use of Reclaimed asphalt pavement with virgin crushed aggregates is widely accepted practice in several construction applications as it reduces the cost of construction, transportation, and handling. Properties of reclaimed asphalt pavement wastes are expected to be in an acceptable range with the conventional material but can be used as a partial or whole replacement for conventional materials. Reclaimed asphalt pavement also reduces the consumption or violation of natural resources. One of the primary advantages of using RAP is cost savings. Incorporating RAP into asphalt mixtures can significantly reduce material and disposal costs since it eliminates the need to extract and transport new aggregates. Additionally, RAP can reduce the demand for virgin asphalt binder In this review, a study was done on the usage of Reclaimed Asphalt Pavement as a recyclable construction material, and its physical and chemical characteristics are compared to conclude and provide its statistical review so that it can be used for sustainable construction works.

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