Influence of Limestone Fillers on the Properties of Concrete

Cement Production & its Environmental Impact

 

Portland cement or clinker, a key constituent in concrete, has been designated as a major greenhouse gas pollutant. Worldwide, the production of cement alone accounts for about 5% of the global anthropogenic carbon dioxide (CO2) emissions.

 

The CO2 emissions associated with Portland cement manufacturing falls into 3 main categories:

 

1. CO2 derived from de-carbonation of limestone,
    

2. CO2 from kiln fuel combustion,
    

3. CO2 produced by vehicles in cement plants and distribution.

    

As a result of these measures, the general rule is that the creation of one ton of cement releases one ton of CO2 into the atmosphere.