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Found 7 results

  1. La demande mondiale de pétrole devrait se contracter en 2008, estime le cabinet CGES, pour qui dorénavant l'évolution des prix dépendra de la capacité concrète de l'OPEP à baisser son offre. Pour en lire plus...
  2. The 7 Ugliest Government Buildings In Washington, D.C. DO NOT PROCEED if you are allergic to concrete. posted on July 16, 2014, at 3:25 p.m. Montreal-Washington, sister cities?
  3. If anyone else is as obsessed with sidewalks as I am, you may enjoy this map I've made of good quality and renovated sidewalks in Montreal. Pretty much anything different from the typical ugly concrete sidewalks makes the cut. Some of them are still under construction/renovation. I can actually draw most of these from memory, but I still had to look some of them up. I'm sure I missed some, so feedback is welcome! Montreal - Sidewalks
  4. Researchers at the Eindhoven University of Technology (EUT) may be on the brink of discovering a breakthrough that will lead to reduced pollution and cleaner air for all. According to the EUT, a roadway made of concrete blended with titanium dioxide can effectively remove up to 45 percent of the nitrogen oxides that it comes in contact with. The titanium dioxide, a photocatalytic material, captures airborne nitrogen oxides and, with the aid of the sun, converts it to nitrates that are harmlessly washed away by the rain. The EUT conducted real-world studies on a 1,000-square-meter section of repaved road in the Netherlands. Such testing showed that the laced pavement could reduce nitrogen oxides by 25 to 45 percent more than traditional concrete. As Jos Brouwers, professor of building materials at the EUT remarked, "The air-purifying properties of the new paving stones had already been shown in the laboratory, but these results now show that they also work outdoors." Additional testing is still underway and although the pavement laced with titanium dioxide does cost some 50 percent more than regular cement, overall road-building costs only increase by a marginal 10 percent. Costs aside, the advantages of the titanium dioxide are readily apparent, but the implementation of such a product requires repaving our roadways – a time intensive and costly endeavor. [source: Eindhoven University of Technology] http://w3.tue.nl/en/news/news_article/?tx_ttnews[tt_news]=9833&tx_ttnews[backPid]=361&cHash=d58ad9cc61
  5. Given some members have strong opinions on the look or style of some of the concrete "highrises" on De M west of Guy or hotel De La Montagne I thought the group woulud enjoy this Globe and Mail article. http://www.theglobeandmail.com/arts/art-and-architecture/hooray-for-brutalist-architecture-and-its-refreshing-lack-of-irony/article15299191/
  6. Twin Cities bridge debuts 30-foot tall pollution-sucking sculptures de Autoblog de Jeremy Korzeniewski Filed under: Etc., Green Two statues have debuted on Minnesota's new Interstate 35W Bridge that are shaped to look like the international cartographic symbol for water. Why? Besides mimicking the look of the Mississippi River as it passes through Minneapolis, the new sculptures are made from a type of concrete that is photocatalytic, meaning they will be able to convert gases like carbon monoxide, nitrous oxides and sulfur dioxide to higher oxidized states, making them less damaging to the environment. Another benefit of the new concrete mixture is that it never looks old as it maintains a white oxidized color on its outer skin. The opening of the new I-35W St. Anthony Falls Bridge also has a deeper meaning, since it replaces the one that tragically collapsed about a year ago from a structural failure. The new one was erected so fast because the original was used by over 140,000 cars per day. Despite how quickly it was built, the new bridge has a 100-year life span, supports ten lanes of traffic thanks to an extra 76 feet of width, and has shoulders on both sides where the old one didn't - not to mention it cleans the air with art. Thanks for the tip, Terry! http://www.autoblog.com/2008/10/07/twin-cities-bridge-debuts-30-foot-tall-pollution-sucking-sculptu/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+weblogsinc/autoblog+(Autoblog)