Investigating the feasibility of using carbon fiber tapes as reinforcement for <scp>3D</scp> concrete printing

Scheurer, Martin; Quenzel, Philipp; Nölke, Peter; Reuter-Schniete, Jonas; Gries, Thomas

doi:10.1002/cend.202100024

Cited by 3 publications

(4 citation statements)

References 6 publications

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“…Taking the approach of increasing the eccentricity of the roving to its extreme, tapes enable the spreading of the rovings until nearly all filaments are aligned in parallel. Initial research into this approach shows that load bearing, measured in flexural TRC tests, can be increased by up to 125% (from 8.67 MPa to 19.52 MPa) compared with unspread reference rovings [53].…”

Section: Mineral-impregnated Textile Reinforcementsmentioning

confidence: 99%

Current and Future Trends in Textiles for Concrete Construction Applications

Scheurer,

Friese,

Penzel

et al. 2023

Textiles

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Textile-reinforced concrete (TRC) is a composite material consisting of a concrete matrix with a high-performance reinforcement made of technical textiles. TRC offers unique mechanical properties for the construction industry, enabling the construction of lightweight, material-minimized structures with high load-bearing potential. In addition, compared with traditional concrete design, TRC offers unique possibilities to realize free-form, double-curved structures. After more than 20 years of research, TRC is increasingly entering the market, with several demonstrator elements and buildings completed and initial commercialization successfully finished. Nevertheless, research into this highly topical area is still ongoing. In this paper, the authors give an overview of the current and future trends in the research and application of textiles in concrete construction applications. These trends include topics such as maximizing the textile utilization rate by improving the mechanical load-bearing performance (e.g., by adapting bond behavior), increasing design freedom by utilizing novel manufacturing methods (e.g., based on robotics), adding further value to textile reinforcements by the integration of additional functions in smart textile solutions (e.g., in textile sensors), and research into increasing the sustainability of TRC (e.g., using recycled fibers).

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Section: Mineral-impregnated Textile Reinforcementsmentioning

confidence: 99%

Current and Future Trends in Textiles for Concrete Construction Applications

Scheurer,

Friese,

Penzel

et al. 2023

Textiles

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“…Scheurer et al report increases in bending strength of up to 125% for tapes with a spreading factor of 2.2 compared to TRC beams reinforced with unspread rovings. 178…”

Section: Textile Reinforcement Structures For Construction Applicationsmentioning

confidence: 99%

“…Scheurer et al report increases in bending strength of up to 125% for tapes with a spreading factor of 2.2 compared to TRC beams reinforced with unspread rovings. 178 2D textile reinforcement structures 2D textile reinforcement structures offer reinforcement in multiple directions of a plane. Similar to conventionally used steel reinforcement grids, the main reinforcement directions of reinforcement textiles for concrete construction are usually perpendicular to each other.…”

Section: D Textile Reinforcement Structuresmentioning

confidence: 99%

Textile reinforcement structures for concrete construction applications––a review

Friese

Scheurer

Hahn

et al. 2022

Journal of Composite Materials

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The use of non-metallic, textile reinforcement structures in place of steel reinforcement is a key component in making concrete constructions more sustainable and durable than they currently are. The reason for this is the corrosion resistance of textile reinforcements, which makes it possible to reduce the thickness of the concrete cover and at the same time extend the service life of concrete structures. This reduces the amount of cement required and thus also the emission of the greenhouse gas carbon dioxide (CO2). By means of textile manufacturing technologies, customized, load-adapted reinforcement topologies can be adjusted to the requirements of highly stressed and well-designed concrete components. The objective of this paper is to give an overview of recent research literature dedicated to textile reinforcement structures that are already used for concrete applications in the construction industry as well as those currently under development. Therefore, textile reinforcement structures, which are divided into one-, two- and three-dimensional topologies, as well as common materials used for textile-reinforced concrete (TRC) are reviewed. Most research has so far been devoted to two-dimensional textile reinforcement structures. Furthermore, novel approaches to the fabrication of textile reinforcement structures for concrete applications based on robotic yarn deposition technologies are addressed.

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“…In-process (in-line) reinforcement is an interesting possibility for integrating reinforcement during the layer-by-layer deposition process. It can be achieved by adding continuous reinforcement such as entrained cables, barbs, and tapes [18][19][20][21]. Furthermore, it can also be achieved by using discrete reinforcing elements such as fibers that can be premixed with the printing materials [22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Automated Reinforcement during Large-Scale Additive Manufacturing: Structural Assessment of a Dual Approach

Ahmed,

Giwa,

Game

et al. 2024

Buildings

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Automated and seamless integration of reinforcement is one of the main unresolved challenges in large-scale additive construction. This study leverages a dual-reinforcement solution consisting of high-dosage steel fiber (up to 2.5% by volume) and short vertical reinforcements as a complementary reinforcement technique for 3D-printed elements. The mechanical performance of the printing material was characterized by measuring the compressive, flexural, and uniaxial tensile strengths of mold-cast specimens. Furthermore, the flexural performance of the plain and fiber-reinforced 3D-printed beams was evaluated in the three main loading directions (X, Y, and Z-directions in-plane). In addition, short vertical threaded reinforcements were inserted into the fiber-reinforced 3D-printed beams tested in the Z-direction. The experimental results revealed the superior flexural performance of the fiber-reinforced beams loaded in the longitudinal directions (X and Y). Moreover, the threaded reinforcement significantly increases the flexural strength and ductility of beams loaded along the interface, compared to the control. Overall, the proposed dual-reinforcement approach, which exhibited notably less porosity compared to the mold-cast counterpart, holds great potential as a reinforcement solution for 3D-printed structures without the need for manual operations.

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Investigating the feasibility of using carbon fiber tapes as reinforcement for 3D concrete printing

Cited by 3 publications

References 6 publications

Current and Future Trends in Textiles for Concrete Construction Applications

Current and Future Trends in Textiles for Concrete Construction Applications

Textile reinforcement structures for concrete construction applications––a review

Automated Reinforcement during Large-Scale Additive Manufacturing: Structural Assessment of a Dual Approach

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