Mining machine in Saudi Arabia
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Concrete recycling
Concrete recycling
Track mounted crushing plant
Construction and demolition waste in the U.S. is approximately 135 million tons annually, or about 3 lbs/person/day. Recyclable materials can be recycled at the end of their useful.
Concrete recycling process
According to the American concrete pavement association, recycling of concrete pavement is a relatively simple process. It involves breaking, removing and crushing concrete from an existing pavement into a material with a specified size and quality.
Crushed concrete may be reused as an aggregate in new Portland cement concrete or any other structural layer. Generally it is combined with a virgin aggregate when used in new concrete. However, recycled concrete is more often used as aggregate in a sub-base layer.
Advances of Concrete recycling
Several advances have made recycling more economical for all types of concrete pavements in recent years. These include:
1. Development of equipment for breaking concrete pavements be they plain, mesh-and-dowel or continuously reinforced.
2. Development of methods to remove steel that minimizes hand labor.
3. Use and application of crushing equipment that can accommodate steel reinforcement.
4. There are no restrictions on the types of concrete pavements that can be recycled. Successful and economical recycling projects have included jointed plain pavement, jointed reinforced pavement, continuously reinforced pavement and even airport pavement over 17 inches thick.
5. Arrangements can be made to haul concrete from a demolition site to the recycling plant, or, in some cases, recyclers are able to move portable recycling machinery to the plant site.
Life like building, pavement, or other structures – reducing the amount of material that is landfilled and reducing the need for virgin materials in new construction.
Concrete recycling tendency
Concrete recycling is becoming an increasingly popular way to utilize aggregate left behind when structures or roadways are demolished. In the past, this rubble was disposed of in landfills, but with more attention being paid to environmental concerns, concrete recycling allows reuse of the rubble while also keeping construction costs down.
After material is processed crushed roadbase, aggregates and sands are sold for use by local councils, government departments, civil contractors, builders, paving contractors, plumbers and landscapers for a wide variety of uses throughout the building and construction industry, for example, over three hundred thousand tonnes of roadbases went to the Sydney Olympic Centre at Homebush. Besides being environmentally friendly, our products are more cost effective than natural quarried products, thus lowering the cost of construction. To find out what materials will best suit your needs please go the Products section of this website.