Screed material and floor screeds. Screed material. Properties and requirements

This European Standard specifies requirements for screed material for use in floor construction internally. To support the aim of achieving a performance related standard, as far as practicable this standard refers only to the properties of the product and not to its method of manufacture, except when this is unavoidable in the description of the characteristics of the product. It defines for fresh screed material the performance related to setting time, consistency, pH value and for the hardened screed material, compressive strength, flexural strength, wear resistance, surface hardness, resistance to indentation, resistance to rolling wheel, shrinkage and swelling, modulus of elasticity, bond strength, impact resistance, reaction to fire, acoustic performance, thermal resistance and chemical resistance. It provides for the evaluation of conformity of the product to this European Standard. The marking requirements for products covered by this European Standard are included. This standard covers screed materials as defined in EN 13318. Structural screeds, i.e. those that contribute to the load bearing capacity of the structure, are excluded from this standard. NOTE This standard can be used in conjunction with codes of application and national specifications for site made screed material produced and laid by the same contractor