Molecular materials are poured into the concrete to add strength while the concrete is being mixed. Some of the nano-concrete mixtures are comprised of polyethylene or ethylene particles such as being developed by The Massachusetts Institute of Technology. Other nano-concrete, like that developed by ...
Advantages & Disadvantages of Polymer Composites The origin of composites goes far back in history. The most common man-made composite was the combination of straw and mud to make bricks for construction. Another example is concrete, which combines cement and gravel. More recent composites use ...
Biogas represents a non-polluting and carbon neutral energy source, which may prove extremely important in years to come. For decades, the relatively low cost of fossil fuels has delayed research into biogas harvesting and usage. However, as fossil fuel stocks dwindle and prices cli...
concrete pipe, the plastic pipe shows the big advantages, such as anti-corrosive, less leakage, light weight and easy installation. But the seriousdisadvantageof the plastic pipe is the low elastic modulus, e.g. polyethylene EP value is about 800 Mpa. While the elastic modulus of carbonsteel...
Polyester engineering fiber is a new crack resistant and reinforced material developed and produced specifically for asphalt concrete. It is a bundle shaped synthetic fiber made of 100% polyester synthetic material and processed through a unique process.