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Structures/ Reinforced concrete structures/ Materials/ Aggregates

AGGREGATES OBTAINED FROM CDD RECYCLING

Camino de los Aceiteros, 101. Complejo Medioambiental de Valdeming√≥mez 28051 Madrid (Madrid). Spain
Tel.: (+34) 912 121 050
Fax: (+34) 912 121 099
salmedinatri.com.es
Salmedina manages CDD (Construction and Demolition Debris) obtained from construction sites. It receives both concrete and mixed debris (concrete mixed with other materials). Plastics, paper, cardboard, glass, metals and wood are separated out of mixed debris, and distributed to other authorized waste managers. Recycled "clean" concrete is shredded, sorted and stored. The result is used to produce aggregates with different granulometries, including sand, 6-20, 20-40 and 40-80 mm gravel, 0-20 and 0-40 mm crushed stone and topsoil. These aggregates are used to make gray mortar, low-strength concrete, prefabricated panels, drainage layers, substrates for paved and unpaved roads, gardens, layers for covering, sealing and restoring of landfills, etc. CDD management accomplishes the following environmental objectives:
It lowers the volume of CDD in construction work.
It replaces the production of new aggregates and the consequent environmental degradation caused by their extraction.
It prevents untreated CDD from damaging the environment and disfiguring the landscape.
Salmedina's factory, with a capacity for treating 7800 metric tons of debris per day, is the largest in Spain.

Salmedina's factory, with a capacity for treating 7800 metric tons of debris per day, is the largest in Spain.

Examples of gravel and crushed rock.

Examples of recycled gravel and crushed rock.

0 to 6 mm sand and 0 to 20 mm topsoil.

0 to 6 mm sand and 0 to 20 mm topsoil.

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