EPD: Portland-slag cement, GUB-15S CSA A3000 (Lafarge, St. Constant Cement Plant)

This EPD reports environmental transparency information for General Use (GU, Type I/II), General Use Limestone (GUL, Type IL), High Early (HE, Type III) and General Use Blended cements (GUB-SF, GUB-15S and GUB-S/SF) produced by Lafarge at its St. Constant, QC plant. Cements are hydraulic binders and are manufactured by grinding cement clinker and other main or minor constituents into a finely ground, usually grey colored mineral powder. When mixed with water, cement acts as a glue to bind together the sand, gravel, or crushed stone to form concrete, one of the most durable, resilient, and widely used construction materials in the world. The Table below sets out each cement type constituents and applicable standards. All St. Constant cements are sold in bulk.

Manufacturer legal entity:

Lafarge, St. Constant Cement Plant

Manufacturer:

Holcim

Country of manufacturer:

quebec, canada

Product name:

Portland-slag cement

Material type:

Cement, binders and additives

Material subtype:

Cement

Environmental & technical characteristics

Global warming potential (A1-A3):

0.828 kg CO2e/kg

Technical specification:

GUB-15S CSA A3000

Available units for calculation:

kg, ton

Unique identifier (OCLID):

62dd9ba4abf5cf5cb938298f

Sustainability data background information

EPD number:

EPD-339

EPD program:

ASTM

Publication year:

2022

Product category rules (PCR):

PCR for Portland, Blended, Masonry, Mortar, and Plastic (Stucco) Cements, V3.1, September 2020

Environmental standard:

ISO 14040

Verification status:

Third-party verified (as per ISO 14025)

Upstream database:

ecoinvent