GGBS For Concrete

Our portfolio of innovative, high-quality products includes Ground Granulated Blast furnace Slag (GGBS), a top-tier cement ingredient providing an optimal mix of environmental benefits and performance.

A by-product of the iron and steel industry, GGBS is obtained when blast furnace slag, a residue produced during the manufacturing of iron in a blast furnace, is finely ground into a powder. It’s usually finer than Portland cement and possesses hydraulic properties, which means it can partially replace Portland cement in concrete mixtures. In fact, in the UK, GGBS typically replaces 70% or more of Portland cement.

Applications for GGBS span a wide array of projects where sustainability and durability are paramount - from soil stabilisation and foundations to tunnelling street-style furniture and concrete block paving.

Opting for GGBS offers several key advantages:

Improved concrete properties

It enhances the long-term strength, durability and workability of concrete when used as a partial cement replacement.


Reduced environmental impact

By utilising a by-product like GGBS, the consumption of cement is reduced, resulting in lower carbon dioxide emissions and a more sustainable construction practice.


Reduced heat of hydration

GGBS has slower hydration properties compared to cement, which reduces the heat generated during the concrete setting process and minimises the risk of thermal cracking.


Reduced alkali-silica reaction

The use of GGBS can mitigate the alkali-silica reaction, which is a chemical reaction that can lead to concrete cracking and degradation.



GGBS delivers a superior, near-white finish, offering safety in darker areas while enhancing the overall aesthetics of your project.


Lower cost

As GGBS is a by-product, its use can lead to cost savings in concrete production.


As a key addition in your concrete mix, GGBS can contribute significantly to performance while reducing environmental impact. Our customer service team is always on hand to provide technical assistance on how to use GGBS for your next construction project.

Contact us

View our cement range of products

20 Results

As part of our green cement range, ECOPlanet Endure brings together the perfect combination of eco credentials and exceptional performance. With a higher level of sulfate resistance, this versatile cement is ideal for precast concrete and below ground concrete works.  

Lafarge Instant Concrete is a ready to use 15N concrete consisting of dried aggregate, cement and other additives.

A high calcium, non hydraulic, hydrated lime. Available in 25kg paper bags.

A quick, easy and ready to use out of the bag pre-blended High Performance Concrete suitable for a wide range of applications.

Low carbon cement with excellent performance. Available in water and tear resistant 25kg plastic bags for durability.

Pre-mixed ready to use application composed of a blend of cement and aggregates.

Premixed ready to use product composed of a selected blend of cements and aggregates intended for domestic use. Available in 20kg plastic bags.

High early and 28 day 52,5R strength cement. Available in 25kg paper bags.

Lafarge Mortar Mix is a premixed ready to use mortar composed of a selected blend of cement, lime and fine aggregates for laying all types of bricks and blocks.

Fast setting cement available in 25kg paper bags.

Portland-fly ash cement with a high sulfate resistance* and a moderate heat of hydration conforming to BS EN 197-1 CEM II/B-V 42,5N.

An engineered solution for soil stabilisation. Ideal for settings such as; roads, railways, ports and airports.

Re-mixed ready to use mortar composed of a selected blend of cement, lime and aggregates for laying all types of brick and block. Available in 25kg plastic bags.

Lafarge Premium Cement is a higher strength 42,5N cement for excellent performance. Ideal for applications including concreting, bricklaying, floor screeding and rendering.

Our most versatile cement. Portland Cement is the most commonly used cement in the UK. Suitable for a range of uses and produced to consistent quality indicators.

Portland Limestone Cement is ideal for architectural concrete as it is lighter in colour than Portland Cement. 

White cement produces a light coloured concrete which has many benefits.  It reduces the amount of street lighting required in architectural uses.  It can be used with pigments to produce coloured concretes.

Lafarge SustainaCem cement is a pre-blended sustainable binder for use in the concrete products market, providing over 15 reduction in embodied carbon when compared to CEM I 52,5N.

Lafarge High Strength cement is a quality BS EN 197-1 CEM I 52,5N Portland cement ideal for reliable strength and performance. Available in 25kg paper bags.