Principles for the Extrusion of Carbon-Reinforced Concrete Structures
The aim of project D02 is the investigation of a material-saving and economic production process for thin, carbon-structures with variable concrete cross sections, which are characterized by simple to strongly curved and complex geometries. Therefore the continuous production with an extruder and a subsequent forming of these structures is focused. Extrusion has the technological and economic potential to produce complex components with high precision and quality without time-consuming and cost-intensive formwork and reinforcement processes.
Not only does rapid production significantly increase cost-effectiveness, it also counteracts the scarcity of raw materials through waste minimization and material-saving component geometries. The integration of technical textiles made of carbon fibers in the extrusion process further increases the load-bearing capacity of the component.
Within the framework of D02, the seed fund project "Targeted CO2 impact of extruded concrete components" (1st round 2022) is carried out.
Scientists
D-52062 Aachen (Germany)
![[Translate to English:] Thomas Matschei](/fileadmin/_processed_/d/b/csm_D_matschei_quadratisch_5362d5c6e9.jpg "Prof. Dr.-Ing. Thomas Matschei")
D-52062 Aachen (Germany)
D- 52062 Aachen (Germany)
Ehemalige | Former involved
Dr.-Ing. Matthias Kalthoff
Cooperations
Publikationen | Publications
Backes, J. G. M.; Scheurer, M.; Kalthoff, M.; Gries, M.; Matschei, T.; Raupach, M.; Traverso, M. (2022) Sustainability of textile reinforcements for carbon concrete – today and tomorrow in: Stokkeland, S.; Braarud, H. C. [eds.] Concrete Innovation for Sustainability – Proc. for the 6th fib International Congress 2022, 12.–16.06.2022 in Oslo (Norway), Oslo: Novus Press, p. 2130–2138.
Beckers, J.; Kalthoff, M.; Morales Cruz, C.; Matschei, T. (2023) Possibilities of extrusion production in concrete construction in: Claßen, M.; Hegger, J.; Matschei, T.; Raupach, M. [eds.] Beiträge zur 10. DAfStb-Jahrestagung mit 62. Forschungskolloquium, 26./27.09.2023 in Aachen, p. 161–171 – DOI: 10.18154/RWTH-2023-08021
Dhahir, M. K.; Kalthoff, M.; Neef, T.; Friese, D.; Beckmann, B.; Cherif, Ch. Matschei, T.; Mechtcherine, V.; Marx, S. (2023) Developing the Chemical Prestressing Technology for Textile Carbon Reinforced Concrete in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 350, Cham: Springer, p. 1428–1438 – DOI: 10.1007/978-3-031-32511-3_146
Kalthoff, M.; Bosbach, S.; Backes, J.; Morales Cruz, C.; Traverso, M.; Claßen, M.; Raupach, M.; Matschei, T. (2023) Fabrication of lightweight, carbon textile reinforced concrete components with internally nested lattice structure using 2-layer extrusion by LabMorTex in: Construction and Building Materials 395, 132334 – DOI: 10.1016/j.conbuildmat.2023.132334
Kalthoff, M.; Bosbach, S.; Matschei, T.; Raupach, M.; Claßen, M.; Hegger, J.(2022) Investigations on material-minimized slabs made of extruded carbon reinforced concrete in: Stokkeland, S.; Braarud, H. C. [eds.] Concrete Innovation for Sustainability – Proc. for the 6th fib International Congress 2022, 12.–16.06.2022 in Oslo (Norway), Oslo: Novus Press, p. 1047–1057.
Kalthoff, M.; Nebel, H.; Morales Cruz, C.; Schmidt, L.; Weniger, A.; Backes, J. G.; Traverso, M.; Raupach, M.; Matschei, T. (2023) CO2 Curing for Extruded Textile Reinforced Concrete Components – Requirements and Potentials in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 349, Cham: Springer, p. 1265–1274– DOI: 10.1007/978-3-031-32519-9_128
Kalthoff, M.; Raupach, M.; Matschei, T. (2022) Extrusion and Subsequent Transformation of Textile-Reinforced Mortar Components—Requirements on the Textile, Mortar and Process Parameters with a Laboratory Mortar Extruder (LabMorTex) in: Buildings 12, 726 – DOI: 10.3390/buildings12060726
Kalthoff, M.; Raupach, M.; Matschei, T. (2022) Investigation of Rheological Test Methods for the Suitability of Mortars for Manufacturing of Textile-Reinforced Concrete Using a Laboratory Mortar Extruder (LabMorTex) in: Constr. Mater. 2, p. 217–233 – DOI: 10.3390/constrmater2040015
Kalthoff, M.; Raupach, M.; Matschei, T. (2022) Investigation into the Integration of Impregnated Glass and Carbon Textiles in a Laboratory Mortar Extruder (LabMorTex) in Materials 14, 7406, p. 217–233 – DOI: 10.3390/ma14237406
Kalthoff, M.; Raupach, M.; Matschei, T. (2022) Materialminimiertes Bauen mit extrudiertem Textilbeton in: Beton 72, issue 6, p. 195–198.
Kruppa, H.; Kalthoff, M.; Neef, T.; Reißig, S.; Mechtcherine, V.; Raupach, M.; Matschei, T.; Vollpracht, A. (2023) Alkali-Activated Binder Requirements for Extrusion and 3Dd-Printing of Carbon Reinforced Concrete in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 349, Cham: Springer, p. 1275–1283 – DOI: 10.1007/978-3-031-32519-9_129
Neef, T.; Kalthoff, M.; Müller, S.; Backes, J. G.; Raupach, M.; Matschei, T.; Traverso, M.; Mechtcherine, V. (2023) Extrusion of High Yield Strength Carbon Reinforced Concrete with Mineral Impregnated Rovings in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 350, Cham: Springer, p. 1568–1576 – DOI: 10.1007/978-3-031-32511-3_160
Scheurer, M.; Dittel, G.; Kalthoff, M.; Raupach, M.; Matschei, T.; Gries, T. (2023) Evaluation of Properties of Impregnated Reinforcement Textiles Cured Within Concrete for Applications in Concrete Extrusion in: Ilki, A.; Çavunt, D.; Çavunt, Y. S. [eds.] Building for the Future: Durable, Sustainable, Resilient – Proc. of fib Symposium 2023, 05.–07.06.2023 in Istanbul (Turkey), publ. in: Lecture Notes in Civil Engineering 349, Cham: Springer, p. 1293–1302 – DOI: 10.1007/978-3-031-32519-9_131
Scheurer, M.; Kalthoff, M.; Matschei, T.; Raupach, M.; Gries, T. (2022) Analysis of Curing and Mechanical Performance of Pre-Impregnated Carbon Fibers Cured within Concrete in: Textiles 2, issue 4, p. 657–672 – DOI: 10.3390/textiles2040038
Unger, R.; Kalthoff, M.; Müller-Pfefferkorn, R.; Nagel, W. (2022) Managing research data in civil engineering research projects in: Stokkeland, S.; Braarud, H. C. [eds.] Concrete Innovation for Sustainability – Proc. for the 6th fib International Congress 2022, 12.–16.06.2022 in Oslo (Norway), Oslo: Novus Press, p. 2668–2675.
Studentische Arbeiten | Student's works
Fromm, N. (2023)Experimentelle Untersuchungen zum Einsatz von multipel getränkten Carbontextilien im Extrusionsprozess [Institutspraktikum]. (mit | with B03)
Gümüskaya, B. (2022) Experimentelle und numerische Untersuchungen zur Herstellung von extrudierten carbonbewehrten aufgelösten Deckenelementen [Masterarbeit]. (mit | with C02)
Hartig, C. (2021) Experimentelle Analyse der Aushärtung und Verbundeigenschaften vorimprägnierter Carbonfasern in Beton [Masterarbeit]. (mit | with B02)
Lube A. (2023) Experimentelle Untersuchungen zur Vorspannung von extrudierten Carbonbetonbauteilen [Bachelorarbeit].
Marbach, J. M. (2023) Gezielte CO2-Beaufschlagung von extrudierten Bauteilen [Institutspraktikum].
Marbach, J. M. (2023) Experimentelle Untersuchungen zum Einsatz von multipel getränkten Carbontextilien im Extrusionsprozess [Bachelorarbeit]. (mit | with B03)
Müllerschön, P. (2022) Untersuchung zur Aushärtung von Tränkungen vorimprägnierter Carbonfasern im Beton für den Extrusionsprozess [Masterarbeit]. (mit | with B02)
Nguyen, T. L. (2022) Anforderungen an Geometrie und Formgebung bei Textilbetonelementen [Bachelorarbeit]. (mit | with B02)
Sabusch C. (2023)Experimentelle Untersuchungen zur Entlüftung und Verdichtung von Betonen im Extrusionsprozess [Bachelorarbeit].