Advances in material development have brought to the market a new type of concrete that can bend under pressure and heal cracks with the addition of water.
"Traditional concrete is brittle and is easily fractured during an earthquake or by overuse.
By contrast, the new concrete composite can bend into a U-shape without breaking. When strained, the material forms hairline cracks, which auto-seal after a few days of light rain.
Dry material exposed by the cracks reacts with rainwater and carbon dioxide in the air to form "scars" of calcium carbonate, a strong compound found naturally in seashells, said study co-author Victor Li of the University of Michigan in Ann Arbor.
The flexible material is just as strong after it heals, the study authors report."
FULL STORY: Bendable Concrete Heals Itself -- Just Add Water
Seattle Legalizes Co-Living
A new state law requires all Washington cities to allow co-living facilities in areas zoned for multifamily housing.
NYC Officials Announce Broadway Pedestrianization Project
Two blocks of the marquee street will become mostly car-free public spaces.
The City of Broken Sidewalks
Can Los Angeles fix 4,000 miles of broken sidewalks before the city hosts the 2028 Olympic Games?
Tall Vehicles: Unsafe at Any Speed
Vehicles with taller front-end designs are more likely to injure pedestrians even when traveling at lower speeds.
Commentary: Minimum Lot Sizes Drive Up Housing Costs
How making residential building requirements more flexible can ease the housing crisis and make neighborhoods more livable for more households.
Study: Automobile Dependency Reduces Life Satisfaction
Automobile dependency has negative implications for wellbeing. This academic study finds that relying on a car for more than 50 percent of out-of-home travel is associated with significant reductions in life satisfaction.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Alamo Area Metropolitan Planning Organization
Village of Glen Ellyn
City of Laramie
American Planning Association, Sustainable Communities Division
HUDs Office of Policy Development and Research
City of Cambridge, Maryland
Newport County Development Council: Connect Greater Newport
Rockdale County Board of Commissioners