books.google.de - The environmental aspects involved in the production and use of cement, concrete and other building materials are of growing importance. CO2 emissions are 0.8-1.3 ton/ton of cement production in dry process. SO2 emission is also very high, but is dependent upon the type of fuel used. Energy consumption...http://books.google.de/books/about/Waste_Materials_Used_in_Concrete_Manufac.html?hl=de&id=b63emZxZJ9EC&utm_source=gb-gplus-shareWaste Materials Used in Concrete Manufacturing
