Rubbish
Introduction
Debris is the fragment or remainder of material that comes from the waste of the construction, remodeling or demolition of structures.
Types of debris
There are two types of debris:
• - waste (fragments) of prefabricated elements, such as ceramic materials, cement blocks, localized demolitions, etc.
• - waste (remains) of materials produced on site, such as concrete and mortar, which contain cement, lime, sand and stone.
Construction debris is made up of remains and fragments of materials, while demolition debris is made up practically only of fragments, therefore having greater qualitative potential compared to construction debris.
Advantages of recycling rubble
• - The recycling of urban debris can represent socioeconomic advantages, if it is accompanied by a series of measures, such as the reduction or elimination of illegal discharges, since the cleaning of these areas has significant costs.
• - It is estimated that the final activities (selection and crushing) of rubble recycling, for example in Brazil, revolve around US$ 2.50/m³, while the cost for a common sand is US$ 6.50/m³ (extraction only, without transportation to the work).
• - A fill of inert materials for rubble relieves traditional landfills and allows the reuse of rubble to be properly managed, whether as recycled material or not.
• - There are important ecological advantages, since recycled debris replaces traditional aggregates from natural reserves that are often devastated in extraction activity.
rubble crusher machine
Fixed crusher
• - Primary crushing: jaw crusher.
• - Secondary crushing: impact crusher.
• - Tertiary crushing: cone crusher[1].