TY - GEN A1 - Rübner, Katrin A1 - Haamkens, Frank A1 - Linde, O. T1 - Untersuchungen an Beton mit Hausmüllverbrennungsasche als Gesteinskörnung T2 - GDCh-Fachtagung Bauchemie CY - Siegen, Germany DA - 27.09.2007 KW - Müllverbrennungsasche KW - Reststoffe KW - Gesteinskörnung KW - Beton PY - 2007 SN - 3-936028-50-8 VL - 37 SP - 253 EP - 260 AN - OPUS4-16156 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin A1 - Haamkens, Frank A1 - Linde, O. T1 - Untersuchungen an Beton mit Hausmüllverbrennungsasche als Gesteinskörnung N2 - Hausmüllverbrennungsasche soll aufgrund ihrer chemisch-mineralogischen Eigenschaften als Gesteinskörnung zur Herstellung von Normalbetonen eingesetzt werden. Durch Bestandteile, wie Chloride, metallisches Aluminium und Altglasfragmente, entstehen aber in kürzester Zeit beträchtliche Betonschäden. Durch zusätzliche mechanische, chemische oder thermische Aufbereitungsschritte können diese betonschädigenden Inhaltsstoffe minimiert werden. Dadurch lässt sich die Qualität der Asche soweit verbessern, dass sie gut zur Betonherstellung verwendbar ist. T2 - GDCh-Fachtagung Bauchemie CY - Siegen, Germany DA - 27.09.2007 KW - Normalbeton KW - Chloride KW - Aluminium KW - Altglasfragmente KW - Betonschäden PY - 2007 AN - OPUS4-36506 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Rübner, Katrin A1 - Haamkens, Frank A1 - Linde, O. T1 - Use of municipal solid waste incinerator bottom ash as aggregate in concrete N2 - As a result of their chemical and mineralogical characteristics, bottom ashes from municipal solid waste incinerators can, in principle, be used as aggregates in the production of normal strength concrete. However, because the ashes contain concrete-damaging components, such as chlorides, sulphates and organic compounds, or excessive quantities of fines, aluminium and waste glass, recycling becomes problematic. In particular, inclusions of aluminium in the ash particles and a glass content of about 15% cause considerable cracks and spalling in concrete specimens within a very short time. The harmful substances can be reduced or removed by additional treatments, such as upstream sieving and washing, waste glass separation, and lye treatment with sodium hydroxide solution. Tests on concretes with 2–32 mm bottom ash as coarse aggregates indicate that the quality of the ash is actually improved by the additional processing. Thus concretes with a compressive strength of C20/25 can easily be produced. Similar to concretes made with recycled aggregates, these concretes exhibit 15% lower compressive strength and E-modulus but twice the porosity of control specimens containing exclusively natural sand and gravel. However, only those concretes that were made with ash with a low aluminium content as a result of lye treatment remained free of damage. KW - Municipal solid waste incinerator bottom ash KW - Waste material KW - Concrete KW - Aggregate KW - Engineering properties PY - 2008 DO - https://doi.org/10.1144/1470-9236/07-036 SN - 1470-9236 SN - 0481-2085 VL - 41 IS - 4 SP - 459 EP - 464 CY - London, UK AN - OPUS4-18702 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -