TY - GEN A1 - Maultzsch, Matthias A1 - Mellmann, Günter A1 - Winkler, Helmut ED - Barrage, A. T1 - The substitution of natural aggregates by processed building rubble for high grade concrete T2 - 4th Congress: Recovery, Recycling, Re-Integration ; 4th R' World Congress CY - Geneva, Switzerland DA - 1999-02-02 PY - 1999 SN - 3-905555-18-2 VL - 3 SP - 199 EP - 204 PB - EMPA CY - St. Gallen AN - OPUS4-7121 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -