Posting in Design
Materials being developed at the University of Michigan could help buildings and infrastructure last longer and withstand more natural disasters.
Researchers at the University of Michigan's school for Civil and Environmental Engineering are developing concrete that is stronger than conventional concrete, and also has higher ductility -- that is, the ability to be bent or deformed without losing strength.
Developed in collaboration with the United States Army, the material has a compressive strength that is two to three times that of other high strength conventional concrete. It has tensile ductility of over 3 percent, says the school. That's more than 300 times that of other high strength concrete.
In conventional concrete, as embedded steel re-bar corrodes it expands and causes the concrete to fracture, explains Professor Victor Li. But thanks to its ductility, the material he is developing is not as susceptible to this type of fracturing.
The targeted applications for the new material include buildings and infrastructure elements, such as bridges.
May 17, 2012
Mary ever wonder how the Pyramids were built...at least some of them? Their technique, the builder(s), were rediscovered over 30 years ago by a French materials scientist a chemist. his technique can also be used to make practically unbreakable dinner plates and cups as well as delicate vases and cups out of 'Stone'. Here are some sites to check out: (lot of good links and info here) http://www.wired.com/dangerroom/2009/10/super-concrete-in-the-us-military-iran-and-the-pyramids/ (The organization at the fore front from the beginning) http://www.geopolymer.org/ (The inventors web site) http://www.davidovits.info/?cat=7&PHPSESSID=ee1fcb4a473d09b257e871ad1a341c95 Also a good opportunity for crafts men or potters!
Since product development is being funded by taxpayers, do taxpayers also get patent rights, and are able to profit from this discover? Thank you.