Ground Granulated Blast Furnace Slag (GGBS)

GGBS I.S. EN 15167

Ground Granulated Blastfurnace Slag (GGBS) is a co-product of the steel manufacturing process used to enhance the performance and durability of concrete. Irish Cement supplies GGBS in bulk to I.S. EN 15167, as well as blended CEM III cements containing GGBS to I.S. EN 197-1.

Where it's used

GGBS is used in concrete to enhance performance, durability and sustainability across a wide range of applications, including ready-mix and site-mixed concrete, infrastructure and civil engineering projects, marine and aggressive environments, mass concrete pours, and sustainable construction solutions.

Product Data

  • Type: Ground Granulated Blastfurnace Slag (GGBS)
  • Standard: I.S. EN 15167 compliant
  • Used as a cementitious addition in concrete
  • Improves long-term strength and durability
  • Enhances resistance to aggressive chemical environments

Safety Guidance

  • Avoid contact with skin and eyes
  • Wear suitable protective clothing
  • In case of contact, rinse immediately with plenty of water
  • Keep out of reach of children

Full Material Safety Data Sheet available for download below.

Test Certificates

Routine product test data covering key physical and chemical properties is available on request.

Quality Assurance & Certifications

  • Complies with I.S. EN 15167
  • Certified to relevant European standards
  • Produced and supplied under strict quality control systems

How To Store

  • Store in dry conditions to maintain quality
  • Protect from moisture and humidity
  • Bulk material should be stored in well-maintained silos

Advice & Information

Irish Cement provides technical guidance on the use of GGBS in concrete applications.
Support is available to assist with specification, mix design and performance optimisation.

Sustainability

GGBS is a co-product of steel production, supporting circular economy principles and helping to significantly reduce the embodied carbon of concrete.