HOW TO EVALUATE EQUIVALENT CONCRETE PERFORMANCE FOLLOWING EN 206-1? THE BELGIAN APPROACH

摘要

The European Standard for Concrete, EN 206-1, gives the durability requirements for concrete exposed to different environmental conditions. These requirements are formulated for well-known cement types, like Portland cement and blast furnace slag cement, and taking into account partial cement replacement by pozzolanic additions like fly ash and silica fume. Going beyond well-known solutions, e.g. using new types of binder and/or new type of additions, the European Standard EN 206-1 generally defines the Equivalent Concrete Performance Concept (ECPC). By means of the ECPC-concept, the durability of non-traditional or alternative cementitious materials can be evaluated in comparison with well-known deemed-to-satisfy-solutions. However, the European Standard does not give a detailed method for the implementation of the ECPC concept. In Belgium, a new Standard has been developed for the practical implementation of the ECPC concept, enabling the evaluation and attestation of non-standard cement types and/or pozzolanic additions. The evaluation of the durability is based on comparative tests, comparing the non-traditional concrete composition with standard solutions accepted by EN 206-1. In this paper, this Belgian approach will be outlined, as implemented in the Belgian Standard NBN B15-100.