ASTM C595 Type IL Portland-Limestone Cement

The product investigated in this EPD is not yet on the market. It is the sibling product of the ASTM C150 Type I-II cement manufactured by the same manufacturer, AKÇANSA, and registered on the International EPD® System. The registration code of the sibling product is S-P-04789. The whole production process for both products are the same and only the composition of materials and energy requirements change. A hydraulic cement consisting of two or more inorganic constituents (at least one of which is not Portland cement or Portland cement clinker) which separately or in combination contribute to the strength gaining properties of the cement, (made with or without other constituents, processing additions and functional additions, by intergrading or other blending). As per ASTM C595, Portland-limestone cement (Type IL) shall be a hydraulic cement in which the limestone content is more than 5% but less than or equal to 15% by mass of the blended cement. The investigated product is manufactured at AKÇANSA's Çanakkale Plant. According to the manufacturer, ASTM C595 Type IL Portland-limestone cement has lower clinker and higher gypsum and limestone content compared to ASTM C150 Type I-II cement as reflected in the below composition. Additionally, the energy requirements during the production are 1.1 times higher than its sibling product. Based on these changes, the environmental impacts for A1 (Raw Material Supply) and A3 (Manufacturing) stages has been calculated. Since the product is not yet on the market, all transport related impacts are out of the scope of this EPD.