What is construction and demolition waste (C&D waste)?

such as concrete, asphalt, metal, gypsum, wood, bricks, glass, and plastic.

Types of construction and demolition waste

Problems and disposal of construction and demolition waste

    Contamination of groundwater and soil quality
  • Reduced water bodys regulation capacity
  • Emission of organic pollutants and toxic gases, such as dioxins, carbides, nitrides, and sulfides
  • Residual solid waste, such as fly ash and slag from burning

How to effectively recycle construction and demolition waste?

Here is how mobile equipment efficiently processes construction waste:

1. Pre-treatment

2. Material crushing

According to specific needs, crushing equipment break construction and demolition waste into smaller sizes to obtain recycled aggregates.

3. Multistage screening

    Fine Aggregates: Used in the production of concrete, mortar, etc.
  • Coarse Aggregates: Used in infrastructure construction like roads and bridges.

4. Magnetic separation

Common C&D Waste materials recycling

1. Concrete waste recycling

Crusher by crushing concrete recycled from demolished roads, buildings, etc. It has the many advantages:

    Much cheaper than the conventional concrete aggregate and save you lots of money.
  • Best substitution of natural gravel resources.
  • Its processing machine—mobile or portable crushers reduce your transportation needs, which means lower fuel consumption.
  • You will never see waste material dumpeded on the land again.

2. Asphalt recycling

Asphalt made by combining a binding material (called a bitumen) with an aggregate becomes sticky at high temperatures, and coupled with the limitations of previous technologies, people usually think that waste asphalt is worthless.

With mature recycling technology, an advanced asphalt station can create a new asphalt mix with up to 70% of the recycled asphalt which can be used for Crusher.

The cost benefits of asphalt recycling are expected to provide a profit or savings potential of $30.00 to $80.00 per ton. Naturally, product quality depends on the combination of ingredients used in the recycling and production process.

Crusher can be accomplished using the following two methods:

    Impact crusher: Used for primary crushing and shaping. This method is highly efficient and can quickly crush large chunks of asphalt into excellent cubic forms, making it suitable for larger-scale asphalt processing projects.
  • Jaw crusher and cone crusher: The jaw crusher performs the coarse crushing, followed by the cone crusher for fine crushing of the asphalt. This combination method is ideal for projects requiring detailed processing and high-quality recycled asphalt.

3. Plaster and gypsum board recycling

Since gypsum has a wide range of applications, it is relatively easy to recycle.

    1Use a crusher such as a jaw crusher or impact crusher to crush the waste board
  1. 2Then collect the dust by a bag filter
  2. 3Adopt the scrap collection device to collect the crushed plaster or gypsum
  3. 4You can also use Crusher to grind gypsum scraps into a powder or pellets
  4. 5Powder and scrap can mix with desulfurized gypsum as raw materials for reuse.

Gypsum possesses many attributes making it an attractive construction material. Plaster and gypsum board recycling can not only solve the shortage of resources, but also save a lot of costs and improve resource utilization.