TY - CONF A1 - Rübner, Katrin A1 - Herbst, Tristan A1 - Meng, Birgit A1 - Hauer, B. T1 - Concept to assess the use of secondary materials in concrete T2 - fib Symposium: Concrete Structures for Sustainable Community, STOCKHOLM 2012 T2 - fib Symposium: Concrete Structures for Sustainable Community, STOCKHOLM 2012 CY - Stockholm, Sweden DA - 2012-06-11 PY - 2012 AN - OPUS4-26093 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -