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- Strengthening & protective applications
- Silica fume for concrete
Silica fume for concrete and mortar applications
Ever more ambitious infrastructure projects demand concrete with enhanced performance and durability – and our range of silica fume (microsilica) products help achieve exactly that.
Concrete solutions for versatile applications
The construction industry is constantly seeking ways to improve the durability and sustainability of concrete structures. Since the early 1980s under the Elkem MICROSILICA® brand, Elkem has developed a unique range of silica fume products to improve the performance and durability of concrete. This is achieved physically through the optimization of the particle packing of concrete mixtures and chemically through the reaction of the highly reactive pozzolan with cement.
Elkem MICROSILICA® is available worldwide and is compliant with many international standards including EN 13263 and ASTM C1240.
Formulations for every need
Elkem MICROSILICA® products are available worldwide and used to improve the durability and sustainability of concrete.
- Marine applications: Elkem MICROSILICA® is used in large offshore sea links and structures (bridges, tunnels, etc.) to increase the resistance of the concrete in aggressive environments due to saltwater corrosion.
- High-performance concrete: Elkem MICROSILICA® designed to produce high compressive strength concrete with significantly low permeability. High performance concrete with Elkem MICROSILICA® has been used in many projects such as the record-breaking Burj Khalifa building in Dubai.
- Tunneling & sprayed concrete: Elkem MICROSILICA® is widely used in tunneling and sprayed concrete applications, which with its more cohesive nature reduces rebound and wastage, while increasing impermeability.
The Great Belt, connecting Danish straits.
Learn about how Elkem helped meet the project’s service life requirement of a 100 years.
Silicon-based materials for construction
ELKEM MICROSILICA® 920
ELKEM MICROSILICA® 920 is a dry silica fume powder used as a filler and reactive pozzolan in construction materials, to improve fire performance and overall durability, available in two forms, Undensified (U) and Densified (D).
Product data sheet gypsum board applications
ELKEM MICROSILICA® 940
ELKEM MICROSILICA® 940 is a dry silica fume powder. It is a key ingredient in many construction materials. In use, it acts physically as a filler and chemically as a highly reactive pozzolan.
Product data sheet gypsum board applications
EMSAC® 500
EMSAC® 500 is an aqueous suspension of ELKEM MICROSILICA®. It is a key ingredient in many construction materials. In use, it acts physically as a filler and chemically as a highly reactive pozzolan.
Product data sheet gypsum board applications
Product data sheet fibre cement applications
ELKEM MICROSILICA® Slurry (EMSAC® 500E)
ELKEM MICROSILICA® Slurry (EMSAC® 500E), an aqueous suspension of microsilica compliant with EN 13263.
Product data sheet slurry concrete applications
MICROWHITE®
MICROWHITE®, a high purity microsilica for construction applications featuring purity, consistent properties and lightness of color.
Product data sheet microwhite concrete applications
GROUTAID®
GROUTAID® is a specially formulated additive to increase the efficiency of injection grouting by improving both flowability and hardening for injection into soils and cracks in concrete and stone.
Product data sheet groutaid applications
Product Data Sheet center
If you are looking for our product safety datasheets, you can also go to our product safety datasheet center
Innovation, flexibility and sustainability
Elkem MICROSILICA®, the original and market-leading silica fume product, has constantly been improved and refined to produce new and innovative products for more sustainable and longer lasting concrete structures.
Elkem works collaboratively with customers to determine their needs, driving our R&D together with them and working with experts in leading academic and research institutes. This collaborative approach enables us to constantly innovate and meet new operational needs, while complying with changing regulatory requirements.
Internally, our manufacturing processes continues to transition to more renewable energy sources that generate less carbon emissions. Many of our manufacturing facilities now use hydroelectric power and increasingly, biofuel and other renewables. Elkem has committed more widely to sustainability with an ongoing Environmental, Social and Governance (ESG) policy that is regularly reviewed, updated and implemented.
Elkem Materials Mixture Analyser
Get the best out of Elkem's silica fume (microsilica) by using our software to optimize your mixture
Silica fume in construction applications
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