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Taking a Look at Pavement Recycling

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1.0 Introduction
Nowadays, there world is more aware about materials disposing and there are many concerns regarding the disposal of waste materials and its impact in the environment. So, the elimination process for the materials passes through the optimization of their use in the industrial processes. Existing deteriorated material can be reused; its characteristics can be rehabilitated, recycled and improved. The old material can be used in the same application that it was initially used for, or as part of a new material.

1.1 Recycling in general
Recycling is the process of transforming or reusing of waste materials to get new products to benefit the reduction of using fresh materials, reduce energy usage, reduce air pollution and water pollution since that most of the materials are not renewable. The trend nowadays is to reduce the consumption of energy and new materials. As a result of that the world create hierarchy to called 3R of waste which are reduce, reuse and recycle.
Recyclable materials include many kinds of glass, paper, metal, plastic, textiles, and electronics. Although similar in effect, the composting or other reuse of biodegradable waste such as food or garden waste is considered recycling.

1.2 Pavement recycling
In recent years the use of recycled materials in pavements has become an increasingly widespread practice. This is especially true for flexible pavements like (HMA) and rigid pavements like Portland cement concrete (PCC) materials that are

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