Filtern
Erscheinungsjahr
Dokumenttyp
- Zeitschriftenartikel (27)
- Beitrag zu einem Tagungsband (6)
- Beitrag zu einem Sammelband (4)
- Forschungsbericht (3)
- Vortrag (1)
Sprache
- Englisch (32)
- Deutsch (6)
- Mehrsprachig (2)
- Spanisch (1)
Schlagworte
- XPS (7)
- Gas storage areas (4)
- Membrane-based gas sensing (4)
- Subsurface monitoring (4)
- Raman spectroscopy (3)
- TEM (3)
- Ball milling (2)
- Crystal structure (2)
- Distributed sensor (2)
- Ellipsometry (2)
- Funksensorik (2)
- Linear sensor (2)
- Nanoparticles (2)
- SERS (2)
- Schadensfrüherkennung (2)
- Sensornetzwerk (2)
- Strukturüberwachung (2)
- Thickness (2)
- Titania (2)
- ToF-SIMS (2)
- 4´-(4´´´-pyridyl)-2,2´:6´2´´-terpyridine (1)
- AES (1)
- AKR-Betonversuche (1)
- Acero alta resistencia (1)
- Acoustic emission (1)
- Air-based (1)
- Alkali-Kieselsäure-Reaktion (1)
- Antioxidant (1)
- Aromatization (1)
- BAM-L200 (1)
- Berechnung (1)
- Betonfahrbahndecke (1)
- Bone (1)
- Bremsbelag (1)
- Brücke (1)
- CRM (1)
- Calibration (1)
- Cell (1)
- Certified reference material (1)
- Chromia containing catalysts (1)
- Computed tomography (1)
- Concrete (1)
- Copper complexes (1)
- Core-shell (1)
- Curvas FCGR (1)
- DRIFTS (1)
- Damage (1)
- Dauerhaftigkeit (1)
- Degradation (1)
- Dehydrocyclization (1)
- Determinación Kth intrínseco (1)
- Deutschland (1)
- Distributed linear sensor (1)
- Durability (1)
- EDX (1)
- Echtzeit (1)
- Fiber optical sensing (1)
- Fibre optical sensing (1)
- Fibre optical sensing (1)
- Forschungsbericht (1)
- GIXRR (1)
- Geopolymers (1)
- Geosynthetic (1)
- Heat exposure (1)
- ICP-MS (1)
- Imaging (1)
- Imaging surface analysis (1)
- Interlaboratory Study (1)
- Interlaboratory study (1)
- Iron complexes (1)
- Kontinuierlich (1)
- Kontrolle (1)
- LA-ICP-MS (1)
- LEIS (1)
- La-Cr compounds (1)
- La2CrO6 (1)
- LaCrO4 (1)
- Lanthanum-chromium mixed oxides (1)
- Large scale soil test field (1)
- Laser ablation (1)
- Lateral resolution (1)
- Laterale Auflösung (1)
- Lipids (1)
- Localization (1)
- MALDI (1)
- MEIS (1)
- Mass spectrometry imaging (1)
- Measurement uncertainty (1)
- Mesh routing (1)
- Messung (1)
- Monitoring of CO 2 (1)
- Monitoring of CO2 (1)
- Monofunctional catalysts (1)
- Multi-hop (1)
- Mössbauer spectroscopy (1)
- NMR-Relaxometrie (1)
- NRA (1)
- Nanocomposite (1)
- Nanometrologie (1)
- Nanoparticle (1)
- Nanoparticle coating (1)
- Nanotechnologie (1)
- Neutron reflectometry (1)
- Oberflächenanalyse (1)
- Oberflächenanalytik (1)
- Osteoporosis (1)
- Oxide/carbon composites (1)
- Pi-pi stacking (1)
- Pin-on-disc test (1)
- Probetas miniatura (1)
- Prognose (1)
- Prüfverfahren (1)
- Pyridine N-oxide (1)
- Pyrrole (1)
- Pyrrolovesamicol (1)
- RBS (1)
- Radar (1)
- Rechenmodell (1)
- Recomendaciones procedimiento de ensayo (1)
- Redox reversibility (1)
- Reibschicht (1)
- Reibungskoeffizient (1)
- SIMS (1)
- STXM (1)
- Sachschaden (1)
- Shape distribution (1)
- Sharpness (1)
- SiO2 (1)
- Silicon dioxide (1)
- Size (1)
- Size distribution (1)
- Soil test field (1)
- Spalling (1)
- Standardisation (1)
- Supramolecular chemistry (1)
- Surface analysis (1)
- TPR (1)
- Temperature-programmed reduction (1)
- Terpyridine (1)
- Thin films (1)
- Tragfähigkeit (1)
- Transmission electron microscopy (1)
- Transmissionselektronenmikroskopie (1)
- Tribofilm (1)
- VAChT (1)
- VAMAS (1)
- Vesamicol (1)
- WSN (1)
- Wahrscheinlichkeit (1)
- Weathering (1)
- X-ray diffraction (1)
- X-ray photoelectron spectroscopy (1)
- X-ray tomography (1)
- XANES X-ray absorption near edge structure spectroscopy (1)
- XPEEM (1)
- XRD (1)
- Zerstörungsfreie Prüfung (1)
- Zertifiziertes Referenzmaterial (1)
- Zirconia (1)
- Zustandsbewertung (1)
- mXRF Micro-X-ray fluorescence spectroscopy (1)
- n-Octane (1)
- progressive hepatolenticular degeneration (1)
- shell thicknss and chemistry (1)
Organisationseinheit der BAM
Eingeladener Vortrag
- nein (1)
Two fly ash-based geopolymer concretes with quartz aggregates or with expanded clay (lightweight) aggregates were exposed to the ISO 834-1 standard fire curve in a small-scale fire test set-up. Acoustic emission measurements during fire exposure and subsequent cooling were employed to study spalling events and cracking during the tests. Optical microscopy and additional acoustic measurements were conducted after the testing to better understand the crack propagation in the samples. The testing revealed that neither of the concretes were susceptible to spalling, which is particularly notable for the concrete with quartz aggregates, as it is a high-strength concrete. This behavior is attributed to the relatively high permeability of the concretes and their low amount of chemically bound water. Significant crack formation was detected only around the temperature of the alpha–beta quartz transition (573 °C) and on cooling. Because of aggregate deformations at the quartz transition temperature, deterioration after heating was more significant in the geopolymer concrete with quartz aggregates. Crack formation also occurred in the concrete with expanded clay aggregates, caused by shrinkage of the geopolymer paste on cooling. Acoustic emission measurements proved to be a valuable tool to investigate processes during high temperature exposure.