Concrete in East Dover 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 East Dover 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.
Each year as a tradition to myself and this green movement website, I write on the events of Earth Day (April 22nd) this year is no exception. I will focus more on some new ideas and representations of our planet Earth. The symbols of Earth Day have been similar throughout the years, including an image or drawing of the Earth..