Last year’s trash could become next year’s model home, thanks to the invention of a new type of construction material made entirely from waste products.
“Bitublocks,” created by engineer John Forth of the University of Leeds in England, are composed of recycled glass, sewage sludge, incinerator ash, the by-products of metal purification and pulverized fuel ash from power stations.
“Bitublocks use up to 100 percent waste materials and avoid sending them to landfill, which is quite unheard of in the building industry,” Forth said.
Forth hopes his new invention will revolutionize the building industry by providing a sustainable, low-energy replacement for concrete blocks.
“Less energy is required to manufacture the Bitublock than a traditional concrete block, and it’s about six times as strong, so it’s quite a high-performance product,” Forth said.
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Everyone knows the familiar symbol for recycle - 3 arrows. But the 3R's (Reduce, Reuse, Recycle) is in reducing order of desirability. For example, recycling greeting cards may be a good practice, but recycling uses lots of water, chemicals and energy, produces secondary pollution like ink in the wastewater, etc.. Directly reusing greeting card is more desirable (see Envirocard). So you see Enviroman clothing himself with a single arrow to represent direct REUSE. Maybe that sinle arror is a better symbol to convey the message than the now wll known 3 arrows symbol. BTW you are free to use the graphic of Enviroman. A link back to us will be highly appreciated.