Fly Ash For Concrete

Fly Ash for concrete is another product from Aggregate Industries, one of the UK's leading cement suppliers. It’s just one of our range of high-quality materials for general and specialised building projects aimed at optimising results.

A significant industrial waste material, fly ash is a fine, powdery byproduct that results from the combustion of pulverised coal in coal-fired power plants. It is composed of mineral particles that are carried up into the atmosphere during the burning process and subsequently collected. It is often used as a supplementary cementitious material in the construction industry.

If you’re looking to create durable and sustainable concrete, you’ll find that fly ash is a key ingredient. Working in tandem with Portland cement, for example, fly ash can significantly enhance both the performance and workability of concrete.

Fly ash reduces the risk of sulphate and chlorine ingress, protecting against Alkali-Silica Reaction (ASR) from certain aggregates. PFA and fly ash as an addition in concrete is covered by the specification BS EN 405-1.

Versatile, adaptable and robust, fly ash is a go-to material for construction professionals across the UK. Applications in which it is useful range from precast concrete units, foundations and wind farms to soil stabilisation, highways, coastal structures and tunnelling.


We offer two different grades of fly ash:

EN450-1 fineness category N is perfect for durable and sustainable concrete, and is great for ready mix applications. It improves concrete durability, reduces the heat of hydration, minimises the risk of ASR and embedded CO2, all while retaining workability.

The EN450-1 fineness category S, provides the ultimate in fly ash performance. It has all the benefits of the N grade, but with controlled fineness for consistent performance and optimisation of the water to cement ratio.

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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.