1 Next finish the edges. I used a rolled edge on my serger but you could use any overcast stitch on your sewing machine or even a zig zag. you just want something that will prevent the edges from unraveling.  Finally fray check the corners so that they stay in tact.
To assess the performance of nickel-titanium reinforced concrete bridges, the researchers analyzed three types of bridge columns: traditional steel and concrete, nickel titanium and concrete, and nickel titanium and engineered cementitious composites, which include cement, sand, water, fiber and chemicals.
China opens world's highest, longest glass bridge. A new bridge now open in China is putting fears to the test for people brave enough to walk across it. The bridge is the world's largest and highest made from glass. To prove that the bridge is safe, visitors were allowed to smash the glass panels with a sledgehammer. Developers also showed the bridge was still able to hold an SUV full of people over the smashed glass.