TY - CONF A1 - Ünal, Murat A1 - Kühne, Hans-Carsten T1 - Dalles de verre - damage mechanisms, maintenance techniques and mortars for restoration N2 - The present article gives an insight into the research project BEGLARES. Main topics are the restoration “Dalles de Verre” Windows and the development of repair mortars and techniques. This project is executed in cooperation between Glasmalerei Peters GmbH, the University of York, and the BAM Federal Institute for Materials Research and Testing. It is funded by the Federal Ministry of Economics and Technology. The main mechanism of damage, Standards for protection and repair of concrete structures, and the development of repair mortar and special test specimens are presented. T2 - EWCHP-2011 - European workshop on cultural heritage preservation CY - Berlin, Germany DA - 26.09.2011 KW - Dalles de verre KW - Carbonation KW - Maintenance planning KW - Current state analysis KW - Repair techniques PY - 2011 SN - 978-3-8167-8560-6 SP - 289 EP - 293 AN - OPUS4-24560 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat T1 - Modular Repair Mortars for Natural Stone in Cultural Heritage T2 - International Conference on Advances in Cement and Concrete Technology in Africa, 28.01.2013 - 30.01.2013 CY - Johannesburg, South Africa DA - 2013-01-28 PY - 2013 AN - OPUS4-27672 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat T1 - Repair and Restoration of "Dalle de Verre" Concrete Windows T2 - ICCRRR 2012 - 3rd International Conference on Concrete Repair, Rehabilitation and Retrofitting CY - Cape Town, South Africa DA - 2012-09-03 PY - 2012 AN - OPUS4-27673 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Viefhues, Eva A1 - Ünal, Murat A1 - Hüsken, Götz A1 - Wellershoff, F. A1 - Mehdianpour, Milad T1 - Zementgebundenes Crashmaterial für Schutzbauteile in explosionsbeanspruchten Fassaden N2 - Die Forderung, für repräsentative Bauwerke wie Botschaften und Flughäfen auch außergewöhnliche Lasten aus Explosion zu berücksichtigen, wurde in jüngerer Vergangenheit zunehmend gestellt. Das aufgrund dieser Lasten zu erwartende Schadensausmaß kann durch den Einsatz von energiedissipierenden Schutzbauteilen in der Fassadenbefestigung begrenzt werden. Die Dissipation der Explosionsenergie in den Schutzbauteilen kann beispielsweise über ein Crashmaterial erfolgen. In diesem Aufsatz werden Untersuchungen an zementgebundenen Materialien, die diesem Zweck dienen sollen, vorgestellt. Der Einfluss unterschiedlicher Zusätze auf die für ein Crashmaterial maßgebenden Eigenschaften wird in einer Parameterstudie untersucht. Als besonders geeignet wird ein Material identifiziert, bei dem die Zugabe eines Gasbildners das Matrixgefüge im Hinblick auf das gewünschte Kraft-Verformungs-Verhalten positiv verändert. Dynamische Versuche mit diesem Material geben Aufschluss über dessen Komprimierungsverhalten bei hohen Stauchraten.----------------------------------------------------------------------------------------------------------------------------------------------- In the past few years public awareness of the need to protect structures against blast effects has risen. Energy dissipating protective components placed at the façade connectors allow protecting people in the building as well as the primary building structure from damage due to blast loads. One possibility to dissipate the blast energy is using protective components with crash material. This paper presents tests on cementitious crash materials studying the effect of different additives to the compression-behavior of the material. Additional experiments enable analyzing the material behavior under static and dynamic test conditions. KW - Explosionsbeanspruchung KW - Energiedissipation KW - Fassadenverankerung KW - Materialkennlinie KW - Crashmaterial KW - Crashkörper KW - Energy dissipation KW - Façade connector KW - Material behavior KW - Crash-material KW - Entwurf und Konstruktion KW - Baustoffe KW - Building materials KW - Conception and design KW - Blast loads PY - 2014 DO - https://doi.org/10.1002/bate.201400041 SN - 0932-8351 SN - 1437-0999 SN - 0005-6820 SN - 0341-1052 SN - 0932-6359 VL - 91 IS - 8 SP - 567 EP - 571 PB - Ernst & Sohn CY - Berlin AN - OPUS4-31343 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat T1 - Development of a polymer-modified repair mortar for fair-faced lightweight concrete of a historical building T2 - International Conference on Sustainable Building Restoration and Revitalisation CY - Shanghai, China DA - 2013-09-25 PY - 2013 AN - OPUS4-30365 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Barthel, Maria T1 - Fördermöglichkeiten und Zusammenarbeit zwischen Industrie und Forschung - Pflastersteinprojekte an der BAM T2 - Entwicklungen und Trends im Betonwarenmarkt sowie Aktuelles zum technischen Stand CY - Feuchtwangen DA - 2014-12-04 PY - 2014 AN - OPUS4-32335 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat T1 - Betonkorrosion und Betoninstandsetzung vor dem Hintergrund der DIN EN 1504 T2 - Bauen im Bestand CY - Hamburg/Seevetal DA - 2014-11-27 PY - 2014 AN - OPUS4-32425 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat T1 - Betonkorrosion und Betoninstandsetzung vor dem Hintergrund der DIN EN 1504 T2 - Bauen im Bestand CY - Hannover DA - 2014-11-18 PY - 2014 AN - OPUS4-32426 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat T1 - Development of a polymer-modified lightweight mortar for the repair of exposed concrete facades on historic buildings T2 - XVII. ERMCO Congress 2015 European Ready Mixed Concrete Organization CY - Istanbul, Türkei DA - 2015-06-04 PY - 2015 AN - OPUS4-33558 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Ünal, Murat A1 - Hüsken, Götz A1 - Kühne, Hans-Carsten T1 - Development of a polymer-modified lightweight mortar for the repair of exposed concrete facades on historic buildings N2 - Reinforced concrete buildings are frequently damaged by cracks, spalling and corroded reinforcement bars. The present article focuses on the damage analysis of one of the first buildings in Berlin that was constructed using reinforced lightweight concrete, which makes it historically important. The compressive strength, carbonation depth, location and diameter of reinforcement bars as well as moisture and salt profiles were determined. The carbonationinduced corrosion of the reinforcement bars represented the main damage of the building. Certified repair mortars with lightweight aggregates (LWA) do not exist on the German market. Therefore, an appropriate repair mortar was developed in accordance with DIN EN 1504 and the German guideline for the repair and protection of concrete structures (RL-SIB). On the one hand, historic preservation requirements, such as: colour of the mortar, possibilities of surface patterning, maximum preservation of the original substance and reversibility of any Intervention must be met. On the other hand, technical requirements of the relevant Standards must be achieved. The developed mix was designed to resist the identified causes of deterioration. Thermal strains within the repair mortar and between the repair mortar and the Substrate influence the crack formation and thus the durability. Therefore, special attention was paid to the bonding and shrinking behaviour of the concrete repair System. By using polymers, both hardened mortar properties and durability were influenced positively. T2 - XVII. ERMCO congress CY - Istanbul, Turkey DA - 2015-06-04 KW - Lightweight concrete KW - Repair mortar KW - Historic building KW - Architectural use KW - Polymers KW - Shrinkage PY - 2015 SN - 978-605-84253-0-9 SP - 306 EP - 314 AN - OPUS4-33607 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -