TY - CONF A1 - Rübner, Katrin T1 - Vom Bauschutt zur leichten Gesteinskörnung N2 - Leichte Gesteinskörnungen können ressourcenschonend aus heterogenen und feinkörnigen Bau- und Abbruchabfällen in einem mehrstufigen Prozess durch thermische oder hydrothermale Stoffumwandlung hergestellt werden. Ihre Anwendung erfolgt in Leichtbetonen und Leichtmörteln, als Schüttung im Garten und Landschaftsbau oder auch als Filter- und Speichermaterial. In zahlreichen Forschungsprojekten wurden die Herstellungsprozesse entwickelt, die Materialeigenschaften optimiert und unterschiedliche Applikationen untersucht. In diesem Beitrag wird zusammenfassend über dieser Forschungsarbeiten berichtet. T2 - 11. Jahrestagung des DAfStb mit 63. Forschungskolloquium der BAM Green Intelligent Building CY - Berlin, Germany DA - 16.10.2024 KW - Bauschutt KW - Leichte Gesteinskörnung KW - Mauerwerkbruch KW - Hydrothermalgranulat PY - 2024 AN - OPUS4-61741 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Use of municipal solid waste incinerator bottom ash as aggregate concrete T2 - EGU 2007 European Geosciences Union General Assembly 2007, Symposium Energy, Resources and the Environment ERE8 "Aggregates - the most widely used geological material" CY - Vienna, Austria DA - 2007-04-15 PY - 2007 AN - OPUS4-18948 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Leichte Gesteinskürnungen aus Mauerwerkbuch für die Betonherstellung T2 - IBAUSIL CY - Weimar, Germany DA - 2012-09-12 PY - 2012 AN - OPUS4-26517 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Pore Structure of Concrete with Recycling Aggregates T2 - 33th International Geological Congress (33IGC), MRC 8 Geological Construction Materials CY - Oslo, Norway DA - 2008-08-07 PY - 2008 AN - OPUS4-18114 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Novel lightweight aggregates from masonry rubble T2 - 1st International Conference on the Chemistry of Construction Materials (ICCM 2013) CY - Berlin, Germany DA - 2013-10-07 PY - 2013 AN - OPUS4-29020 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Lightweigt concrete with recycling aggregates made from masonry rubble and rubble-clay mixtures N2 - Structural lightweight concrete is a construction material composed primarily of lightweight aggregates (LWA), cement and water. Most LWA are produced by thermal treatment of natural raw materials such as clay and shale today. In addition to the high energy costs thereby incurred, the availability of suitable raw materials is limited. An alternative is the use of recycling LWA made from Mineral construction and demolition waste. Recycling LWA made from masonry rubble and rubble-clay mixtures were studied in two different research projects. The technology pursues the idea of feedstock recycling, which means the recycling is based on the chemical and mineralogical composition of the masonry rubble and clay. The recycling LWA are produced in a multistage manufacturing process by thermal hardening in laboratory and pilot scale. Their particle bulk densities and particle strengths vary between 600 and 2000 kg/m³ and 1.5 and 13 MPa, respectively. Their equivalence to traditional LWA was proven in comprehensive tests of the aggregates themselves as well as the mortars and concretes made therefrom. Our contribution reports on the results of the characterization of the recycling aggregates compared to expanded clays and the studies on LWA concretes. T2 - RECYCLE18 - Fourth International Conference Progress of Recycling in the Built Environment CY - Lisbon, Portugal DA - 11.10.2018 KW - Lightweight concrete KW - Lightweight aggregates KW - Recycling aggregates KW - Masonry rubble KW - Construction and demolition waste KW - Feedstock recycling PY - 2018 AN - OPUS4-46698 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Zeolite crystallization experiments under insertion of laboratory ware waste material T2 - 23. Jahrestagung der deutschen Gesellschaft für Kristallographie CY - Göttingen DA - 2015-03-16 PY - 2015 AN - OPUS4-32838 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Characterization of Mineral Building Materials by Mercury Intrusion Porosimetry T2 - International Workshop on Macro/Mesopore Analysis: Mercury Porosimetry and Alternative Liquid Penetration Techniques CY - Aix-en-Provence, France DA - 2005-05-30 PY - 2005 AN - OPUS4-7303 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Sekundärrohstoffe zur Betonherstellung - Eigenschaften und Eignungsbewertung T2 - Fachtagung Recycling R'10 CY - Weimar, Germany DA - 2010-09-22 PY - 2010 AN - OPUS4-21849 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Saving natural resources by material recycling T2 - CESB 10 Central Europe towards Sustainable Building from Theory to Practice CY - Prague, Czech Republic DA - 2010-06-30 PY - 2010 AN - OPUS4-20594 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Möglichkeiten der Verwendung von kieselsäurehaltigen Filterprodukten in Mörtel und Beton T2 - Projektbesprechung im Chemiewerk Bad Köstritz GmbH CY - Bad Köstritz, Germany DA - 2005-12-12 PY - 2005 AN - OPUS4-11863 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Use of silca residue from chemical industry as mineral additive for concrete T2 - 7th int. congress concrete: Construction`s Sustainable Option CY - Dundee, Scotland DA - 2007-09-04 PY - 2007 AN - OPUS4-12455 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Blähgranulate aus Bau-und Abbruchabfällen als leichte Gesteinkörnung für Beton T2 - 52. DAfStb-Forschungskolloquium, BAM CY - Berlin, Germany DA - 2011-11-07 PY - 2011 AN - OPUS4-25254 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Reststoffverwertung im Betonbau T2 - 52. DAfStb-Forschungskolloquium, BAM CY - Berlin, Germany DA - 2011-11-07 PY - 2011 AN - OPUS4-25247 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Mineralische Bauabfälle als Rohstoff für die Herstellung leichter Gesteinskörnungen T2 - Berliner Recycling- und Rohstoffkonferenz CY - Berlin, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-25650 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Concept to assess the use of secondary materials in concrete 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 - TY - CONF A1 - Rübner, Katrin T1 - Leichte Gesteinskörnungen aus Mauerwerkbruch für die Betonherstellung T2 - Seminar "Grüne Baustellen und Verwertung von Bauabfällen" CY - Strasbourg, France DA - 2012-10-12 PY - 2012 AN - OPUS4-26674 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Comparative study of lightweight expanded aggregates made from masonry rubble or clay N2 - Lightweight aggregates can be manufactured from masonry rubble by a thermal expanding process pursuing the idea of feedstock recycling. Throughout a series of research projects, the manufacturing process has been developed, optimized and scaled up. Various test results prove that the engineering properties of the new expanded masonry rubble aggregates are similar to those of traditional expanded clays. The aggregates show a heterogeneous and macroporous pore structure. The grains consist of cracks, cavities, large bulky pores and a solid skeleton containing small capillary pores as well as partly melted areas. But which differences and similarities exist to expanded clay aggregates, which are made from a relatively homogeneous clayey raw material? To answer this question, comparative studies on the chemical, physical, mineralogical and microstructural characteristics of expanded masonry rubble aggregates and commercial expanded clay aggregates have been conducted. In our contribution, results of particle shape and porosity measurements, mercury intrusion porosimetry and electron microscopy are presented. The microstructural characteristics are correlated with engineering properties, such as water absorption and particle strength. T2 - V International Conference Progress of Recycling in the Built Environment CY - Weimar, Germany DA - 10.10.2023 KW - Lightweight aggregates KW - Expanded aggregates KW - Expanded clay KW - Masonry rubble KW - Chemical recycling PY - 2023 AN - OPUS4-64754 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Studies on the Pore Structure of Lightweight Recycling Granules T2 - XVII. Workshop über die Charakterisierung von feinteiligen und porösen Festkörpern CY - Bad Soden am Taunus, Germany DA - 2014-11-11 PY - 2014 AN - OPUS4-32034 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Rübner, Katrin T1 - Investigation on the microstructure of lightweight granules made from masonry rubble T2 - 10th International Symposium on the Characterization of Porous Solids (COPS X) CY - Granada, Spain DA - 2014-05-11 PY - 2014 AN - OPUS4-30043 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -