This study aimed to create EI Scal, an environmental impact assessment scal, related to construction materials used
in the reinforced concrete structure production. The main reason for that was based on the need to classify the
environmental impact levels through indicators to assess the damage level process. The scale allowed converting
information to estimate the environmental impact caused. Indicators were defined trough the requirements and
classification criteria of impact aspects considering the eco-design theory. Moreover, the scale allowed classifying
the materials and processes environmental impact through four score categories which resulted in a single final
impact score. It was concluded that the EI scale could be cheap, accessible, and relevant tool for environmental
impact controlling and reduction, allowing the planning and material specification to minimize the construction
negative effects caused in the environment.
