Ecocem invests €12m in Dutch cement production

Ecocem is investing €12 million in its cement manufacturing operation at Moerdijk in the Netherlands, adding blending equipment, laboratory facilities, and silo capacity to support industrial production of new lower-carbon cement formulations.

Construction is under way, with the expanded blending installation expected to be completed by mid-2027. The investment will allow the company to combine different raw materials and fractions of ground granulated blast furnace slag (GGBS), increasing flexibility over the composition and performance of its cement products.

The development was confirmed on 10 November, following an event at Moerdijk on 6 November marking Ecocem’s 25 years of operations in the Benelux region. The company introduced three cement technology developments alongside the manufacturing investment: ECO2CEM R, ECO2CEM III, and ACT.

Two of the products are aimed specifically at precast concrete manufacture, where the reduction of cement clinker must be balanced against the need for rapid early strength development. The third, ACT, is a separate low-clinker cement technology intended to use a wider selection of supplementary materials.

Ecocem’s existing business includes the production and supply of GGBS, a cementitious material derived from granulated blast furnace slag. When used as a constituent of cement or concrete, GGBS can replace a proportion of conventional Portland cement and reduce the quantity of clinker required.

Clinker manufacture is responsible for a substantial proportion of cement production emissions. Limestone and other raw materials are heated in a kiln, releasing carbon dioxide through both fuel combustion and the chemical decomposition of calcium carbonate.

Reducing clinker content can therefore lower the carbon associated with the cementitious material used in concrete. However, the performance of a replacement binder depends on its composition, the proportions of the different constituents, and the conditions under which the concrete is mixed and cured.

GGBS typically develops early strength more slowly than conventional Portland cement in otherwise comparable mixtures. That behaviour can create difficulties for precast manufacturers, whose production schedules often depend on concrete components gaining sufficient strength for removal from their moulds within a relatively short period.

A mould cannot be released for the next production cycle until the component has developed the required handling strength. Where strength development takes longer, the same manufacturing equipment may produce fewer components during a shift, unless the producer changes its curing arrangements or increases mould capacity.

Ecocem’s ECO2CEM R has been developed to address this constraint. Its composition has been optimised to increase early reactivity, with the intention of allowing higher levels of GGBS replacement while maintaining the strength needed for precast production.

The product was developed at the company’s innovation centre near Paris. Ecocem says it enables manufacturers to reduce reliance on Portland cement without extending the production cycle, although detailed comparative strength data and specific replacement percentages have not been disclosed in the November announcement.

Concrete performance depends on more than early strength. The intended structural application, curing conditions, durability requirements, workability, and relevant product standards must also be considered when assessing whether an alternative cement formulation is suitable.

Different precast products place different demands on the binder. Structural components, drainage products, paving materials, and other factory-made concrete elements may require particular strength classes, surface characteristics, and production arrangements, making appropriate testing essential before changing established formulations.

ECO2CEM III addresses a different production constraint. The product is a CEM III cement blend developed for precast manufacturers that do not have the storage and dosing equipment needed to combine separate cementitious constituents at their own plants.

Concrete producers using separate binders may need additional silos, weighing equipment, material transfer systems, and suitable production controls. The availability of a pre-blended cement allows manufacturers to purchase a prepared formulation instead of undertaking that blending process independently.

This can simplify material handling at a batching plant, particularly where storage space or the number of available silos limits the range of constituents that can be used. The producer must still assess the cement’s performance in its own concrete mixtures and verify that the finished products meet the applicable specifications.

Ecocem expects to introduce ECO2CEM III during 2027. The company has not disclosed its exact cement classification or GGBS content, so the product’s composition should not be inferred from the broad CEM III designation alone.

The Moerdijk investment provides the industrial infrastructure needed to manufacture these different formulations. Additional silos will increase the available storage arrangements, while the new blending installation will allow the company to combine materials in controlled proportions.

Blending accuracy is an important part of cement production because variations in constituent proportions can affect setting behaviour, strength development, and the consistency of the resulting concrete. The characteristics of individual materials, including particle size distribution and reactivity, also influence the finished product.

Laboratory facilities support the testing and quality assurance needed to control these characteristics. Different formulations may require verification of material composition, fineness, strength development, and other properties before they can be supplied for their intended construction applications.

The new installation will give Ecocem greater flexibility in producing cement formulations for different customer requirements. The company has not disclosed an additional annual capacity figure for the investment, so the project cannot yet be described as increasing Moerdijk output by a specified tonnage.

Alongside the two precast products, Ecocem is preparing to introduce its ACT technology to the Benelux market. ACT is designed to reduce clinker content using a broader selection of locally available supplementary cementitious materials and engineered fillers, limiting dependence on the availability of blast furnace slag.

That approach addresses a material supply consideration. GGBS availability is linked to suitable ironmaking processes, and changes in steel production can affect the supply of granulated slag available to cement producers.

Ecocem states that ACT can reduce cement-related carbon dioxide emissions by up to 70% compared with conventional cement. The figure is a company technology claim, not a verified emissions reduction for every mixture or a measured outcome of the Moerdijk expansion.

Initial commercial ACT supply is expected from Ecocem’s Dunkirk facility in France during the first quarter of 2027. This timetable is separate from the planned introduction of ECO2CEM R and ECO2CEM III from Moerdijk during the second half of that year.

The Dutch manufacturing expansion forms part of Ecocem’s wider €220 million European investment programme to support industrial deployment of ACT by 2030. The company operates four production facilities across Ireland, France, and the Netherlands, together with two terminals in the UK.

Ecocem materials have previously been used on major construction projects including HS2 and the Grand Paris Express. However, the November announcement does not identify confirmed UK customers for ECO2CEM R or ECO2CEM III, and those products should not be described as already available to British concrete manufacturers.

The Moerdijk development will add manufacturing flexibility for cement formulations designed around specific production requirements. Completion of the blending installation is expected by mid-2027, followed by the planned introduction of the two precast products during the second half of the year.