Comments for New Miracle Concrete…A Carbon Storage Solution? at http://www.ecogeek.org , comment 1 to 8 out of 8 comments http://www.ecogeek.org Mon, 23 Nov 2009 04:37:12 +0100 FeedCreator 1.7.3 http://www.ecogeek.org/preventing-pollution/1954#comment-26920 Gasoline, dust, excavation of material, etc all cause pollution how can this be a viable option? - concreteartsit101 Sat, 16 May 2009 12:54:42 +0100 http://www.ecogeek.org/preventing-pollution/1954#comment-17353 Isn't it where you get the biggest CO2 reduction? Reducing the carbon emitted initially by 20% is good, but if your road lasts a few more years than you don't need as much concrete and you don't need as much repairs. That's pretty good to me! - Nicolas Lauzier Tue, 05 Aug 2008 09:14:20 +0100 http://www.ecogeek.org/preventing-pollution/1954#comment-17283 The concrete can be downcycled into aggregate that still contains the carbon. It can then be used to make shiny new concrete, formed for a different purpose. Recycling the concrete can be done cost effectively (as the aggregate has to be crushed & graded anyway) & it gets you points toward green stars. Project managers on commercial projects get all gooey over green stars because commercial tenants get all gooey over green stars These guys need to organise how many points a commercial project will get for using their new concrete & get into compliance & certification. That's what I think. - e Sat, 02 Aug 2008 18:00:34 +0100 http://www.ecogeek.org/preventing-pollution/1954#comment-17282 The Star system by Xerox Parc. They invented the mouse, the desktop metaphor, icons... ...they had an office suite with a word processor, spreadsheet, mail client, etc. Steve Jobs visited Xerox Parc, then took his whole engineering team to the next trade fair where The Star was being displayed. They didn't have the resources to complete the desktop AND the office suite so they asked Microsoft to do the office suite for them. The rest you can probably work out. - e Sat, 02 Aug 2008 17:49:47 +0100 http://www.ecogeek.org/preventing-pollution/1954#comment-17264 I think carbon sequestration is insane. I'd rather the money and effort went into sensible renewable energy that doesn't produce the carbon in the first place. What happens when the concrete is broken up? The carbon comes straight back out... - Peter Anderson Fri, 01 Aug 2008 23:46:01 +0100 http://www.ecogeek.org/preventing-pollution/1954#comment-17257 If we look at these ideas the way that venture capitalists would , then we would expect to see numerous attempts with only a modicum of success. Microsoft and Apple were not the only startups of their kind, but name the others. I can't, but I'm sure they existed. - Paul Barthle Fri, 01 Aug 2008 15:26:06 +0100 http://www.ecogeek.org/preventing-pollution/1954#comment-17246 Great, so now 20% less carbon can be emitted in concrete manufacturing. But still carbon concentrations are rising in the atmosphere every time we use concrete! The Romans used volcano ashes (called pozzolano) for their concrete and with that made it in an almost carbon neutral way! Pozzolano isn't easily available all over the world, but I doubt whether the concrete industry will not be able to find a similar chemical substance. It's just that I wonder why concrete industry is hardly ever being mentioned in the carbon discussion. They emit as much carbon as aviation! Please keep on mentioning this item! - frisbee Fri, 01 Aug 2008 12:12:41 +0100 http://www.ecogeek.org/preventing-pollution/1954#comment-17244 But there was another anouncement, along similar lines, of a Vinod Khosola funded company that will also sequester CO2 in concrete... but the scope of available absorbtion would be much higher. - bbm Fri, 01 Aug 2008 11:09:21 +0100