Concrete in Berlin is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate (generally a course aggregate made of gravel or crushed rocks such as limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures. Concrete solidifies and hardens after mixing with water and placement due to a chemical process known as hydration. Concrete in Berlin is used to make pavements, pipes, architectural structures, foundations, motorways/roads, bridges/overpasses, parking structures, brick/block walls and footings for gates, fences and poles. Concrete is used more than any other man-made material in the world.

A National Organic Policy — Where?

    Written by: Lee Ann Rush There is a country in the world where the government has officially opted to describe its national economic state of affairs not in the language of short-term economic gains as measured by gross domestic product (GDP), but rather by the degree to which its citizenry can live and prosper in a holistic   framework of..