Scientists link temperature and colour of pavement to find out which of its compounds may have a negative impact on the environment<\/p>\n
Researchers at the Massachusetts Institute of Technology<\/strong> (MIT) developed a paving<\/strong> which could mitigate the greenhouse gas emissions<\/strong>. The innovation of the pavement is its ability to regulating the surface temperature<\/strong> which, for the time being, are impenetrable due to the density <\/strong>of the materials from which they are constructed.<\/p>\n Pavements are a plentiful urban surface that is cover covers<\/strong> around the 40% of cities in the United States<\/strong>. In addition to being the means of transportation in the United States, they are a source of heat which can be used as a source of energy. increase the air temperature by up to 4.2 degrees Celsius.<\/strong><\/p>\n In response, scientists at the MIT Concrete Sustainability<\/strong> are studying how a surface can decrease the intensity of the heat emanating<\/strong>. His research focused on \"Cold pavements\",<\/em> i.e. a pavement that reflects more solar radiation and emits less heat<\/strong> compared to conventional paved surfaces.<\/p>\n Its report describes how cold pavements can reduce the risk of air temperatures up to 2.1 degrees Celsius and 1.7 degrees Celsius in the cities of Boston and Phoenix, <\/strong>respectively. \"Achieving these savings requires cold pavement strategies based on climate, traffic and city configurations\".<\/em>he said Hessam AzariJafri<\/strong>co-author of the study.<\/p>\n Hessam AzariJafri also explained that the surfaces with a low level of albedo<\/strong> (metric for measuring the reflectivity of a surface), they absorb more light and tend to be darker<\/strong>. On the other hand, when surfaces have a high albedo index are brighter and reflect more light.<\/strong><\/p>\n Some materials such as concrete<\/strong> are able to reflect sunlight to regulate the temperature of the pavement, and lower the temperature of buildings. \"Surfaces with a high albedo index tend to be brighter and reflect more light, which allows them to have lower temperatures\".<\/em>said AzariJafri.<\/p>\n For a comprehensive understanding of the environmental benefits of cold pavements, the researchers had to look beyond the conventional materials used to build roads.<\/strong>. This resulted in a classification of three types of pavement: reflective asphalt, concrete and reflective concrete.<\/strong><\/p>\n This classification also allowed them to analysing the impacts incorporated for all types of pavements<\/strong> and the effect of pavement type on the vehicle's excess fuel consumption. \"We did an analysis of the environmental impact of the pavement by calculating three factors: the stiffness and the rate of deterioration of the surface\".<\/em> AzariJafri said.<\/p>\n So far, scientists at MIT are working on a new project, which will allow them to eThe aim is to thoroughly study each of the materials in order to create more environmentally friendly cement.<\/strong>. To this end, it wants to guide future fresh paving projects for highways and roads in the United States to help cities and address climate change.<\/p>","protected":false},"featured_media":15797,"template":"","categoria":[45],"class_list":["post-17089","vigilancia","type-vigilancia","status-publish","has-post-thumbnail","hentry","categoria-tecnologicas"],"_links":{"self":[{"href":"https:\/\/ctcon-rm.com\/en\/wp-json\/wp\/v2\/vigilancia\/17089","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ctcon-rm.com\/en\/wp-json\/wp\/v2\/vigilancia"}],"about":[{"href":"https:\/\/ctcon-rm.com\/en\/wp-json\/wp\/v2\/types\/vigilancia"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ctcon-rm.com\/en\/wp-json\/wp\/v2\/media\/15797"}],"wp:attachment":[{"href":"https:\/\/ctcon-rm.com\/en\/wp-json\/wp\/v2\/media?parent=17089"}],"wp:term":[{"taxonomy":"categoria","embeddable":true,"href":"https:\/\/ctcon-rm.com\/en\/wp-json\/wp\/v2\/categoria?post=17089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}