EN 934 Concrete - Standard Test Method for Mortar and Screed Admixtures

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN 934 testing. This European standard specifies common requirements for all additives under EN 934-2, EN 934-3, EN 934-4 and EN 934-5, with specific requirements for each type of mixture.

This European standard covers requirements common to all additives. The general requirements replace those previously included in EN 934 parts 2 to 5. These include requirements regarding the effect on corrosion behavior when additives are used in concrete, mortar or mortar containing embedded metal.

The requirements for corrosion behavior in this standard include an approved list and a declared list of active substances used in certain additives. These lists are based on experience showing that the use of additives containing only approved list substances does not increase corrosion of embedded steel. The materials in the declared list are subject to national restrictions on their use for certain applications in some countries and must be declared on the CE mark.

The specific requirements are new and relate to specific uses of additives or their impact on the environment. It is anticipated that in the future, the specific requirements will derive from European legislation and apply, for example, to additives used in concrete or mortar in contact with drinking water, and to the release of regulated dangerous substances.

EUROLAB assists manufacturers with EN 934 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.