Potential and challenges of in situ ATR-FTIR spectroscopy in the analysis of cement hydration: Combined evaluation with in-situ and ex-situ XRD
Ullrich, A.; Garbev, K.; Stemmermann, P.
2026. Cement and Concrete Research, 203, 108185. doi:10.1016/j.cemconres.2026.108185

Assignment of Si-O vibrational modes in the IR spectra of C-S-H phases based on single-crystal polarized IR and Raman spectra of 14 A tobermorite, jennite, and jaffeite
Garbev, K.; Gasharova, B.; Ullrich, A.; Beuchle, G.; Stemmermann, P.
2025. Cement and concrete research, 198, Art.-Nr.: 108000. doi:10.1016/j.cemconres.2025.108000

Solubility, speciation and thermodynamics of Fe in reducing aqueous KCl solutions
Fürst, P. Q.; Çevirim-Papaioannou, N.; Gaona, X.; Garbev, K.; Roth, T.; Hagemann, S.; Altmaier, M.; Geckeis, H.
2025. RSC Advances, 15 (54), 46308–46319. doi:10.1039/D5RA07073B

R-Zement: CO₂-arme Herstellung des Klinkerminerals Dicalciumsilikat aus Recycling-Baustoffen : Berichtsblatt BWPLUS
Stemmermann, P.; Beuchle, G.; Garbev, K.; Precht, U.; Schweike, U.; Ullrich, A.
2025. Ministerium für Umwelt, Klima und Energiewirtschaft / Baden-Württemberg. doi:10.5445/IR/1000187843

Retention of niobium(V) by calcite and carbonated cement paste: quantitative description and impact of isosaccharinic acid and chloride
Huber, N.; Guidone, R. E.; Gaona, X.; Garbev, K.; López-García, M.; Alcubierre, L.; Bocchese, F.; Brassinnes, S.; Altmaier, M.; Geckeis, H.
2025. Cement and Concrete Research, 197, 107952. doi:10.1016/j.cemconres.2025.107952

Impact of ISA and chloride on the uptake of Nb(V) by calcite and carbonated cement paste
Huber, N.; Guidone, R. E.; Gaona, X.; Garbev, K.; Prüßmann, T.; López-Garcia, M.; Alcubierre, L.; Bocchese, F.; Brassinnes, S.; Altmaier, M.; Geckeis, H.
2025, September 23. 19th International Conference on the Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere (Migration 2025), New Orleans, LA, USA, 21.–27. September 2025

Iron(II) in repository systems : a thermodynamic study of solubility and hydrolysis in dilute to concentrated chloride systems
Fürst, P. Q.; Cevirim-Papaioannou, N.; Gaona, X.; Roth, T.; Hagemann, S.; Garbev, K.; Altmaier, M.; Geckeis, H.
2025, September 22. 19th International Conference on the Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere (Migration 2025), New Orleans, LA, USA, 21.–27. September 2025

Characterisation of Recycled Concrete Aggregates with TGA and XRF coupled with Statistical Data Analysis
Frankenhauser, L.; Garbev, K.; Ullrich, A.; Stemmermann, P.; Stapf, D.
2025, August 12. 4th The 4th International Conference on Sustainable Building Materials (ICSBM 2025), Eindhoven, Niederlande, 10.–13. August 2025

Pyrolysis of Polystyrene with Mineral Fillers: Perspectives for Recycling of the Plastic-rich Fraction from Thermal Insulation Construction Material
Kurtz, T.; Merz, D.; Garbev, K.; Alsharqawi, R.; Stemmermann, P.; Tavakkol, S.; Stapf, D.
2025, März 18. Jahrestreffen der DECHEMA-Fachgruppen Abfallbehandlung und Wertstoffrückgewinnung (AuW), Hochtemperaturtechnik (HTT) und Rohstoffe (ROH 2025), Dresden, Deutschland, 17.–18. März 2025

Carbonfasern – Grundlagenuntersuchungen und Übertrag auf die Abfallverwertung
Wexler, M.; Garbev, K.; Gehrmann, H.-J.; Hauser, M.; Mahl, J.; Merz, D.; Stapf, D.
2025. 14. Wissenschaftskongress Kreislauf- und Ressourcenwirtschaft. Hrsg.: A. Bockreis, 111–115, innsbruck university press. doi:10.15203/99106-153-3

Carbonfasern – Grundlagenuntersuchungen und Übertrag auf die Abfallverwertung
Wexler, M.; Garbev, K.; Gehrmann, H.-J.; Hauser, M.; Mahl, J.; Merz, D.; Stapf, D.
2025, März 14. 14. DGAW-Wissenschaftskongress "Ressourcen neu denken" (2025), Kassel, Deutschland, 13.–14. März 2025

Study on Organo-Silica-Derived Membranes Using a Robeson-like Plot
Bünger, L.; Gestel, T. van; Kurtz, T.; Garbev, K.; Stemmermann, P.; Meulenberg, W. A.; Guillon, O.; Stapf, D.
2025. Membranes, 15 (3), Art.-Nr.: 83. doi:10.3390/membranes15030083

Structural characterization of amorphous hydrous Zr(IV) oxide and the transformation occurring under hydrothermal conditions
Kiefer, C.; Gaona, X.; Suzuki-Muresan, T.; Schild, D.; Garbev, K.; Kobayashi, T.; Dardenne, K.; Blanco, O. D.; Altmaier, M.; Grambow, B.; Geckeis, H.
2025. Applied Geochemistry, 182, 106302. doi:10.1016/j.apgeochem.2025.106302

Solubility and thermodynamics of the Eu(III)-Na/Mg-NO-HO systems
Häusler, F.; Gaona, X.; Lassin, A.; Garbev, K.; Skerencak-Frech, A.; dos Santos, P.; Touzelet, S.; Cartigny, Y.; Altmaier, M.; Madé, B.
2025. Goldschmidt2025 abstracts, European Association of Geochemistry. doi:10.7185/gold2025.29720

Uptake of Nb(V) by calcite and carbonated cement systems: impact of isosaccharinic acid and chloride
Huber, N.; Guidone, R. E.; Gaona, X.; Garbev, K.; Lopez-Garcia, M.; Alcubierre, L.; Bocchese, F.; Brassinnes, S.; Altmaier, M.; Geckeis, H.
2025. 5th International Symposium on Cementation of Nuclear Wastes (NUWCEM 2025)

Thermisches Abbauverhalten von Carbonfasern - Grundlagenuntersuchungen für potentielle Verwertungsprozesse = Thermal Degradation Behaviour of Carbon Fibres - Fundamental Investigations for Potential Recovery Processes
Wexler, M.; Baumann, W.; Garbev, K.; Gehrmann, H. J.; Hauser, M.; Mahl, J.; Merz, D.; Stapf, D.
2025. Abfallwirtschaft und Energie. Bd.: 2. Hrsg.: S. Thiel, 2–15, Thomé-Kozmiensky Verlag (TK)

Solubility and structural characterization of Zr(IV) hydrous oxides
Kiefer, C.; Gaona, X.; Suzuki-Muresan, T.; Schild, D.; Garbev, K.; Kobayashi, T.; Dardenne, K.; Dieste Blanco, O.; Altmaier, M.; Grambow, B.; Geckeis, H.
2024, November 5. Jahrestagung der GDCh-Fachgruppe Nuklearchemie (2024), Karlsruhe, Deutschland, 5.–7. November 2024

Retention of Sn in reducing cement systems
Huber, N.; Cevirim-Papaioannou, N.; Gaona, X.; Garbev, K.; Dardenne, K.; Altmaier, M.; Geckeis, H.
2024, Oktober 8. ATAS-AnXAS 2024 - 2nd Joint Workshop - 6th International Workshop on Advanced Techniques in Actinide Spectroscopy - 10th International Workshop on Speciation, Techniques and Faculties for Radioactive Material at Synchrotron Light Sources (ATAS-AnXAS 2024), Karlsruhe, Deutschland, 7.–11. Oktober 2024

Direct dehydrogenation of methanol to formaldehyde over ZnO–SiO -based catalysts
Chowdhury, A. G.; Arnold, U.; Garbev, K.; Bender, M.; Sauer, J.
2024. Catalysis Science and Technology, 14 (17), 4958–4967. doi:10.1039/D4CY00541D

Impact of ISA and chloride on the uptake of Nb(V) by calcite and carbonated cement paste
Huber, N.; Guidone, R. E.; Gaona, X.; Garbev, K.; Brassinnes, S.; Altmaier, M.; Geckeis, H.
2024, August 26. 10th International Conference on Nuclear and Radiochemistry (NRC 2024), Brighton, Vereinigtes Königreich, 25.–30. August 2024

Mixed-Matrix Organo-Silica-Hydrotalcite Membrane for CO₂ Separation Part 1: Synthesis and Analytical Description
Bünger, L.; Garbev, K.; Ullrich, A.; Stemmermann, P.; Stapf, D.
2024. Membranes, 14 (8), Art.-Nr.: 170. doi:10.3390/membranes14080170

Mixed-matrix Organo-Silica-Hydrotalcite Membrane for CO₂ Separation Part 2: Permeation and Selectivity Study
Bünger, L.; Kurtz, T.; Garbev, K.; Stemmermann, P.; Stapf, D.
2024. Membranes, 14 (156), Art.-Nr.: 156. doi:10.3390/membranes14070156

Natural and enforced carbonation of hydrated cement paste
Rodriguez Hidalgo, C. P.; Lea da Silva, W. R.; Soosai Alphonse, J.; Stemmermann, P.; Garbev, K.; Beuchle, G.
2024, April 17. 1st RILEM International Conference on Mineral Carbonation for Cement and Concrete (2024), Aachen, Deutschland, 16.–17. April 2024

Thermodynamics of the Eu( iii )–Mg–SO₄ –H₂O and Eu( iii )–Na–SO₄ –H₂O systems. Part I: solubility experiments and the full dissociation Pitzer model
Santos, P. F. dos; Lassin, A.; Gaona, X.; Garbev, K.; Altmaier, M.; Madé, B.
2024. Dalton Transactions, 53 (14), 6289–6299. doi:10.1039/d3dt04322c

Recyclingcluster Porenbeton (REPOST) - Schlussbericht des Forschungsvorhabens
Beuchle, G.; Garbev, K.; Kreft, O.; Schultmann, F.; Schweike, U.; Steins, J.; Stemmermann, P.; Ullrich, A.; Volk, R.; Weiß, B.
2024. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000173409

Accelerated carbonation of hardened cement paste: Quantification of calcium carbonate via ATR infrared spectroscopy
Kalkreuth, J.; Ullrich, A.; Garbev, K.; Merz, D.; Stemmermann, P.; Stapf, D.
2024. Journal of the American Ceramic Society, 107 (4), 2627–2640. doi:10.1111/jace.19546

Zero emission circular concrete
Stemmermann, P.; Garbev, K.; Ullrich, A.; Beuchle, G.
2023. RILEM Publ

Belite cement clinker from autoclaved aerated concrete waste fines with high sulfate content
Stemmermann, P.; Beuchle, G.; Garbev, K.; Schweike, U.; Ullrich, A.
2023. ce/papers, 6 (2), 203–208. doi:10.1002/cepa.2096

Zero-Emission Circular Concrete
Stemmermann, P.
2023, Juni 13. Helmholtz Energy Conference (2023), Koblenz, Deutschland, 12.–13. Juni 2023

Recovery of carbon fiber reinforced plastics from wind turbine rotor blades - current status and basic investigations
Mahl, J.
2023, Juni 13. Helmholtz Energy Conference (2023), Koblenz, Deutschland, 12.–13. Juni 2023

Toward the Synthesis of New Zeolite Structures in the Presence of Cesium: Zeolite MMU-1
Tosheva, L.; Garbev, K.; Miller, G. J.; Mihailova, B.
2023. Crystal Growth and Design, 23 (5), 3834–3844. doi:10.1021/acs.cgd.3c00239

Solubility and Solid Phase Formation in the ND 2 O3 -EUCL 3 -NDCL 3 - NACL-H2 O(L) System
Rao Dumpala, R. M.; Heberling, F.; Gaona, X.; Garbev, K.; Schild, D.; Altmaier, M.; Geckeis, H.
2023. 18th International Conference on the Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere (Migration 2023), Nantes, Frankreich, 24.–29. September 2023

Thermogravimetric studies, kinetic modeling and product analysis of the pyrolysis of model polymers for technical polyurethane applications
Zeller, M.; Garbev, K.; Weigel, L.; Saatzer, T.; Merz, D.; Tavakkol, S.; Stapf, D.
2023. Journal of analytical and applied pyrolysis, 171, Article no: 105976. doi:10.1016/j.jaap.2023.105976

Solubility of niobium(V) in cementitious systems relevant for nuclear waste disposal: Characterization of the solubility-controlling solid phases
Jo, Y.; Garbev, K.; Çevirim-Papaioannou, N.; Blanco, O. D.; Blochouse, B. de; Altmaier, M.; Gaona, X.
2022. Journal of Hazardous Materials, 440, Art.-Nr.: 129810. doi:10.1016/j.jhazmat.2022.129810

Belite cement clinker from autoclaved aerated concrete waste – A contribution towards CO₂-reduced circular building materials
Stemmermann, P.; Ullrich, A.; Beuchle, G.; Garbev, K.; Schweike, U.
2022. ce/papers, 5 (5), 17–26. doi:10.1002/cepa.1879

Chlorellestadite (Synth): Formation, Structure, and Carbonate Substitution during Synthesis of Belite Clinker from Wastes in the Presence of CaCl and CO
Garbev, K.; Ullrich, A.; Beuchle, G.; Bergfeldt, B.; Stemmermann, P.
2022. Minerals, 12 (9), Artikel-Nr.: 1179. doi:10.3390/min12091179

CaCl₂ as a Mineralizing Agent in Low-Temperature Recycling of Autoclaved Aerated Concrete: Cl-Immobilization by Formation of Chlorellestadite
Ullrich, A.; Garbev, K.; Schweike, U.; Köhler, M.; Bergfeldt, B.; Stemmermann, P.
2022. Minerals, 12 (9), 1142. doi:10.3390/min12091142

Experimental fracture sealing in reservoir sandstones and its relation to rock texture
Busch, B.; Okamoto, A.; Garbev, K.; Hilgers, C.
2021. Journal of structural geology, 153, Art.-Nr.: 104447. doi:10.1016/j.jsg.2021.104447

Total oxidation of carbon monoxide, VOC and reduction of NO₂ with catalytic ceramic filter media
Straczewski, G.; Vargas, C.; Zampieri, A.; Garbev, K.; Leibold, H.; Dahmen, N.
2021. Fuel communications, 9, Article no: 100038. doi:10.1016/j.jfueco.2021.100038

Catalytic Tar Conversion in Two Different Hot Syngas Cleaning Systems
Straczewski, G.; Mai, R.; Gerhards, U.; Garbev, K.; Leibold, H.
2021. Catalysts, 11 (10), Article no: 1231. doi:10.3390/catal11101231

Coordination environment of Si in calcium silicate hydrates, silicate minerals, and blast furnace slags: A Xanes database
Zhang, W.; Garbev, K.; Monteiro, P. J. M.
2021. (J. Li, Hrsg.) Cement and concrete research, (143). doi:10.1016/j.cemconres.2021.106376

Starve to Sustain - An Ancient Syrian Landrace of Sorghum as Tool for Phosphorous Bio-Economy?
Kanbar, A.; Mirzai, M.; Abuslima, E.; Flubacher, N.; Eghbalian, R.; Garbev, K.; Bergfeldt, B.; Ullrich, A.; Leibold, H.; Eiche, E.; Müller, M.; Mokry, M.; Stapf, D.; Nick, P.
2021. International Journal of Molecular Sciences, 22 (17), Art.-Nr.: 9312. doi:10.3390/ijms22179312

In situ x-ray diffraction at high temperatures: Formation of CaSiO and ternesite in recycled autoclaved aerated concrete
Ullrich, A.; Garbev, K.; Bergfeldt, B.
2021. Minerals, 11 (8), Art.Nr. 789. doi:10.3390/min11080789

Development of catalytic ceramic filter candles for tar conversion
Straczewski, G.; Koutera, K.; Gerhards, U.; Garbev, K.; Leibold, H.
2021. Fuel communications, (7), Article no: 100021. doi:10.1016/j.jfueco.2021.100021

Influences of cross-linking and Al incorporation on the intrinsic mechanical properties of tobermorite
Li, J.; Zhang, W.; Garbev, K.; Beuchle, G.; Monteiro, P. J. M.
2020. Cement and concrete research, 136, Article no: 106170. doi:10.1016/j.cemconres.2020.106170

Chemo-mechanical characterization of hydrated calcium-hydrosilicates with coupled Raman- and nanoindentation measurements
Stemmermann, P.; Garbev, K.; Gasharova, B.; Beuchle, G.; Haist, M.; Divoux, T.
2020. Applied geochemistry, 118, 104582. doi:10.1016/j.apgeochem.2020.104582

Totaloxidation von Kohlenmonoxid und VOCs mit katalytischen Keramik-Filterkerzen
Straczewski, G.; Garbev, K.; Leibold, H.; Vargas, C.; Zampieri, A.; Dahmen, N.
2020, März 10. Jahrestreffen der ProcessNet-Fachgruppen Computational Fluid Dynamics und Gasreinigung (2020), Bamberg, Deutschland, 10.–11. März 2020

Synthesis of Hydrotilcite-Like Compounds as Selective Membrane Layer for High Temperature Carbon Dioxide Separation
Leibold, H.; Garbev, K.; Stapf, D.
2020, Februar 17. (L. Bünger, Hrsg.), Jahrestreffen der ProcessNet-Fachgruppen Hochdruckverfahrenstechnik und Membrantechnik (2020), Freising, Deutschland, 17.–19. Februar 2020

Celitement quality parameter determination by online NIR-spectroscopy
Lutz, C.; Matthes, J.; Waibel, P.; Precht, U.; Beuchle, G.; Garbev, K.; Schweike, U.; Stemmermann, P.; Keller, H. B.
2019. Advances in cement research, 31 (2), 80–91. doi:10.1680/jadcr.17.00016

Microchemical and micromechanical characterization of cement hydrates with coupled Raman- and nanoindentation measurements
Stemmermann, P.; Garbev, K.; Haist, M.; Divoux, T.; Gasharova, B.; Beuchle, G.
2018, Dezember 4. 8th Multi-scale Materials Under the Nanoscope (M2UN 2018), Washington, DC, USA, 3.–5. Dezember 2018

Micro-chemical and -mechanical characterization of isochemical cement hydrates with coupled Raman and nanoindentation measurements
Garbev, K.; Haist, M.; Divoux, T.; Gasharova, B.; Beuchle, G.; Stemmermann, P.
2018, November 15. Workshop Design of Soft Green Materials (2018), Cambridge, MA, USA, 14.–16. November 2018

Thermal stability of C-S-H phases and applicability of Richardson and Groves’ and Richardson C-(A)-S-H(I) models to synthetic C-S-H
Tajuelo Rodriguez, E.; Garbev, K.; Merz, D.; Black, L.; Richardson, I. G.
2017. Cement and concrete research, 93, 45–56. doi:10.1016/j.cemconres.2016.12.005

Characterisation of the product quality of a novel environmentally friendly cementitious material by estimation of auxiliary quantities with near-infrared-spectroscopy
Lutz, C.; Matthes, J.; Waibel, P.; Precht, U.; Garbev, K.; Schweike, U.; Beuchle, G.; Stemmermann, P.; Keller, H. B.
2015. Energy, Science and Technology, Conference and Exhibition (EST 2015), Karlsruhe, Deutschland, 20.–22. Mai 2015

Characterisation of the product quality of a novel environmental friendly cementitious material by estimation of auxiliary quantities with near-infrared-spectroscopy
Lutz, C.; Matthes, J.; Waibel, P.; Precht, U.; Garbev, K.; Schweike, U.; Beuchle, G.; Stemmermann, P.; Keller, H. B.
2015. Energy, Science and Technology, Conference and Exhibition (EST 2015), Karlsruhe, Deutschland, 20.–22. Mai 2015

Near-infrared spectroscopy for the prediction of auxiliary quantities to characterize the product quality of a novel cementious material
Lutz, C.; Matthes, J.; Waibel, P.; Precht, U.; Schweike, U.; Beuchle, G.; Garbev, K.; Stemmermann, P.; Keller, H. B.
2015. 7th International Conference on Computational Methods and Experiments in Materials Characterisation, Valencia, E, April 22-24, 2015

Near-infrared spectroscopy for the prediction of auxiliary quantities to characterize the product quality of a novel cementious material
Lutz, C.; Matthes, J.; Waibel, P.; Precht, U.; Schweike, U.; Beuchle, G.; Garbev, K.; Stemmermann, P.; Keller, H. B.
2015. Materials Characterisation VII, Valencia, E, April 22-24, 2015. Ed.: C. A. Brebbia, 183–194, WIT Press

Preparation of a novel cementitious material from hydrothermally synthesized C-S-H phases
Garbev, K.; Beuchle, G.; Schweike, U.; Merz, D.; Dregert, O.; Stemmermann, P.
2014. Journal of the American Ceramic Society, 97, 2298–2307. doi:10.1111/jace.12920

A modular concept of crystal structure applied to the thermal transformation of α-C₂ SH
Garbev, K.; Gasharova, B.; Stemmermann, P.
2014. Journal of the American Ceramic Society, 97, 2286–2297. doi:10.1111/jace.12921

Synchrotron based X-ray diffraction study of the hydrothermal behavior of (Al, Na, K, Sr. Ba )-stabilized Ca2SiO4 polymorphic modifications
Köhler, K.; Pöllmann, H.; Garbev, K.; Stemmermann, P.; Ullrich, P.; Gasharova, B.; Steininger, R.
2014. ANKA User Reports 2012/2013, 165–167, Karlsruher Institut für Technologie (KIT)

Synchrotron-based XRD in situ Investigation of Novel Hydraulic Binding Materials: Formation of Alpha-C2SH from Ca(OH)2
Garbev, K.; Ullrich, P.; Gasharova, B.; Göttlicher, J.; Steininger, R.; Stemmermann, P.
2014. ANKA User Reports 2012/2013, 60–62, Karlsruher Institut für Technologie (KIT)

Synchrotron-based XRD in situ Hydrothermal Investigation of Novel Hydraulic Binding Materials
Garbev, K.; Ullrich, P.; Gasharova, B.; Göttlicher, J.; Ralph Steininger, R.
2014. ANKA User Reports 2012/2013, 58–59, Karlsruher Institut für Technologie (KIT)

Long-term cement corrosion in chloride-rich solutions relevant to radioactive waste disposal in rock salt. Leaching experiments and thermodynamic simulations
Bube, C.; Metz, V.; Bohnert, E.; Garbev, K.; Schild, D.; Kienzler, B.
2013. Physics and Chemistry of the Earth, 64, 87–94. doi:10.1016/j.pce.2012.11.001

Morphology and structure of mechanochemically synthesized C-S-H
Tajuelo, E.; Richardson, I. G.; Black, L.; Garbev, K.; Merz, D.
2012. 32nd Cement and Concrete Science Conference, Belfast, IRL, September 17-18, 2012

A reliable quantitative TA-FTIR method for cementitious material characterisation
Merz, D.; Dregert, O.; Garbev, K.; Stemmermann, P.
2012. GEFTA-STK-Joint Meeting on Thermal Analysis and Calorimetry, Saarbrücken, October 10-12, 2012