TY - CONF A1 - Maultzsch, Matthias T1 - Construction recycling technologies for high quality cement and concrete T2 - Targeted research Action:Environmentally Friendly Construction Technologies 2nd Annual Workshop T2 - Targeted research Action:Environmentally Friendly Construction Technologies 2nd Annual Workshop CY - Brussels, Belgium DA - 1998-11-17 PY - 1998 AN - OPUS4-6481 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -