Principles for the Extrusion of Carbon Reinforced Concrete Structures
The aim of subproject D02 is the investigation of a material-saving and economic production process for thin, reinforced 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 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 being carried out.
Scientists
D-52062 Aachen
![[Translate to English:] Thomas Matschei](/fileadmin/_processed_/d/b/csm_D_matschei_quadratisch_5362d5c6e9.jpg "Prof. Dr.-Ing. Thomas Matschei")
D-52062 Aachen
D- 52062 Aachen
Ehemalige / Former involved
Matthias Kalthoff, M.Sc. (RWTH AAchen)
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].