n IMIESA - Keeping cool with concrete : cement & concrete

Volume 41, Issue 7
  • ISSN : 0257-1978



The two primary benefits of concrete's light colour are reduced lighting energy consumption, and a decrease in the 'heat island' effect in cities and built-up areas, both of which help to combat global warming, says Bryan Perrie, managing director, The Concrete Institute. In the first instance, the light colour of concrete provides a safer environment and enables lighting requirements in a town or city to be reduced, both internally and externally. "For concrete roads or parking areas, research in the US has shown that surface reflection readings on concrete pavements and other surfaces are four to five times higher than other road surface materials. This means increased visibility for drivers and increased security in urban areas. Similar research has shown that the increased reflectance of concrete roads calls for fewer lighting masts and up to 24% lower energy requirements. This principle also applies to urban areas and car parks," says Perrie.

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