Ground Granulated Blast Furnace Slag – GGBS

A cementitious addition to produce lower carbon concretes

Added to construction materials to lower carbon and improve performance and durability. When used in combination with cement, GGBS offers the following benefits, reduced risk of early-age cracking in large concrete pours, improved durability against sulfate attack & aggresive ground conditions, chloride ingress, and alkali silica reaction.



Engineered Solutions


Concrete Block Paving

Soil Stabilisation


User guide

Concrete, mortars and grouts containing Portland Cements and GGBS must be specified and used correctly for best performance.

The cement content must be correct and the water: cement ratio as low as possible consistent with satisfactory placing, thorough compaction and effective curing.

The final finish quality of this material will depend upon the user having the required skills and a familiarisation with the materials and its application methods.

Tarmac cannot be held responsible where workmanship has not been carried out in accordance with good practice.



Green Energy Wind Farm

Learn More

Northern Line Extension

Major Infrastructure Development

Learn More

Aberdeen Harbour Expansion Project

Sea Defence Development

Learn More


Download files individually or add multiple files to a zip folder.

Ground Granulated Blast Furnace Slag – GGBS contact



Contact us

Bulk Cement Contact Form