Bacteria are useful for myriad applications. Delft University of Technology's Henk Jonkers has recently shown that water-activated bacteria, when worked into concrete, act like osteoblasts do in bones , allowing the concrete to "heal" itself and patch up small cracks, reports New Scientist 's Kate McAlpine.
An island of raised concrete located in the middle of a dead-end road in a light industrial area of Winnipeg has triggered a lawsuit between Manitoba Public Insurance and the City of Winnipeg.
Concerns about the structural integrity of some of the concrete used in the Hart Street roadwork project has prompted contractors and Wyoming Department of Transportation officials to investigate the materials used to date.
U.S. Concrete Inc., which makes ready-mixed concrete and other building supplies, said Tuesday it has completed its financial restructuring under Chapter 11 bankruptcy protection.
