EUROPEAN SPECIFICATION for

SPRAYED CONCRETE

Association House, 99 West Street, Farnham, Surrey, GU9 7EN, UK tel: +44(0)1252 739147 fax: +44(0)1252 739140 www.efnarc.org

EFNARC was founded in March 1989 by five national trade associations representing producers and applicators of specialist building products. Membership has since been widened to include major European companies who have no national body or institution to represent their interests. EFNARC provides a common voice for the industry to make known its comments and views to the European Commission, CEN Technical Committees and other groups dealing with European Harmonisation of Specifications and Standards in sprayed concrete, flooring and protection and repair of …ver más…

5.1 General ................................................................................................ 5.2 Cement ................................................................................................ 5.3 Additions .............................................................................................. 5.4 Aggregates ........................................................................................... 5.5 Admixtures ........................................................................................... 5.6 Fibres................................................................................................... 5.7 Consistence.......................................................................................... 5.8 Working temperature ............................................................................. REQUIREMENTS FOR DURABILITY..................................................................... 6.1 General ................................................................................................ 6.2 Chloride content .................................................................................... 6.3 Alkali content ........................................................................................ 6.4 Requirements related to environment conditions ....................................... MIX COMPOSITION............................................................................................. 7.1 General