تحسين النتائح
ترتيب حسب
من
الى
الصفحة 1
الصفحة 1
Alternative concrete - geopolymer concrete : Emerging research and opportunities
Focuses on fly ash-based alkali-activated geopolymer concrete, its production and characteristic properties. The re-use of waste materials and industrial by-products, such as fly ash, is not only economically of interest but also helps to reduce carbon dioxide emissions. The carbon footprint of these materials is much lower than that of concrete using ordinary Portland cement. They thus offer new sustainable solutions to the construction industry.
Managing Closed-Loop Supply Chains
Introduction Closing supply chains refers to taking care of items once they are no longer desired or can no longer be used by their user. Smart management of closed-loop supply chains means profitable recovery of value from these items (products, functional components, materials or packaging). The company closing the supply chain may be the original equipment manuf- turer (OEM), a distribution partner or a third party not involved in the f- ward distribution. In recent years, the management of closed-loop supply chains has gained importance because of increased legislation on producer respon- bility, requiring companies to take back products from customers and to organize for proper recovery and disposal. This legislation is partially due to increased awareness of environmental issues. However, smart com- nies have also understood that returned products often contain lots of value to be recovered. They manage closed-loop supply chains simply because it is a profitable business proposition.
