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Grupo Cementos Portland ValderrivasGrupo Cementos Portland Valderrivas

  • We produce in a sustainable manner caring for the planet

  • We operate in Europe, Africa and United States

  • Cement, concrete, aggregate, mortar and recycling

  • The architectural challenges are built with us

  • We’re leaders in our markets

  • Specific cements and experienced teams

  • From the seashore we arrive where is needed

  • Committed to quality and the environment

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  1. Reuse of waste - Recycling / Reuse of materials

Reuse of waste - Recycling / Reuse of materials

Waste can be substituted for natural raw materials at two points in the cement-making process:

  1. In the production of rawmix, which is used to make clinker.
  2. As a clinker additive for making cement without altering product quality.

What’s more, if the waste used to replace rawmix is decarbonated, the environmental benefit not only entails a savings of natural resources, but a reduction in CO2
emissions as well.

In 2012 our total consumption of alternative raw materials for clinker and cement as a percentage of the total raw materials required for the production process reached 8.5% in the USA and 5.4% in Spain.
The upward trend in the USA is due to an increase in our consumption of ash, slag and synthetic gypsum. In the case of Spain, there has been a decline due primarily to a reduction in our consumption of fly ash as a cement additive. The replacement of natural raw materials by alternatives in clinker manufacturing in Spain has undergone a slight decline, although replacement levels remain close to 5%, the level of previous years.

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