Mechanical anisotropy of ultra-high performance fibre-reinforced concrete for 3D printing

Yang, Yekai; Wu, Chengqing; Liu, Zhongxian; Wang, Hailiang; Quan-chang, Ren

doi:10.1016/j.cemconcomp.2021.104310

Cited by 81 publications

(15 citation statements)

References 40 publications

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“…Similarly, Mineral Impregnated Carbon Fiber has challenges during mixing and more studies are required to investigate its durability and robustness (Mechtcherine et al, 2020a). Glass fibers of different sizes are used as reinforcement techniques in 3DCP (Hambach and Volkmer, 2017;Panda et al, 2017a;Shakor et al, 2020;Yang et al, 2022b). But the strength enhancement was insufficient to eliminate steel reinforcement.…”

Section: Fiber and Textile Reinforcementmentioning

confidence: 99%

A review of concrete 3D printed structural members

Raphael

Senthilnathan

Patel

et al. 2023

Front. Built Environ.

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Concrete 3D Printing (3DP) is a potential technology for increasing automation and introducing digital fabrication in the construction industry. Concrete 3D Printing provides a significant advantage over conventional or precast methods, such as the prospects of topologically optimized designs and integrating functional components within the structural volume of the building components. Many previous studies have compiled state-of-art studies in design parameters, mix properties, robotic technologies, and reinforcement strategies in 3D printed elements. However, there is no literature review on using concrete 3D Printing technology to fabricate structural load-carrying elements and systems. As concrete 3DP is shifting towards a large-scale construction technology paradigm, it is essential to understand the current studies on structural members and focus on future studies to improve further. A systematic literature review process is adopted in this study, where relevant publications are searched and analyzed to answer a set of well-defined research questions. The review is structured by categorizing the publications based on issues/problems associated with structural members and the recent technology solutions developed. It gives an overall view of the studies, which is still in its nascent stage, and the areas which require future focus on 3D printing technology in large-scale construction projects.

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Section: Fiber and Textile Reinforcementmentioning

confidence: 99%

A review of concrete 3D printed structural members

Raphael

Senthilnathan

Patel

et al. 2023

Front. Built Environ.

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“…Often, 3D-printed structures suffer from difficult buildability and exhibit a high degree of anisotropy. Moreover, constitutive models for such materials have not yet been developed [ 24 ]. Consequently, it was decided to produce four custom-made formworks.…”

Section: Construction Of the Bridgementioning

confidence: 99%

The Construction of a Footbridge Prototype with Biological Self-Healing Concrete: A Field Study in a Humid Continental Climate Region

Jakubovskis

Boris

2022

Materials

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Biological self-healing concrete (BSHC) offers a sustainable and economical way of increasing the lifespan of structures vulnerable to cracking. In recent decades, an enormous research effort has been dedicated to developing and optimizing the bacterial healing process. Nevertheless, most studies have been carried out under laboratory conditions. To verify the effectiveness and longevity of the embedded healing systems under normal service conditions, field studies on BSHC structures must be performed. In the present study, BSHC beams were designed as a structural part of a prototype footbridge. To select the optimal BSHC mix composition, a series of laboratory tests were also carried out. Laboratory tests have shown that the healing ratio in BSHC elements under rain-simulating healing conditions was several times higher in comparison to control specimens. Based on the laboratory results, the BSHC mix composition was selected and applied for structural bridge beams. To the best of the authors’ knowledge, the present study reports the first application of BSHC in a prototype footbridge. The long-term data gathered on the healing process in a humid continental climate zone will allow the benefits of biological self-healing to be quantitatively evaluated and will pave the way for the further optimization of this material.

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“…Meanwhile, with the development of high-performance materials technology, there are more types of fiber, such as glass polypropylene and carbon fiber, that have been applied in the research field of fiber reinforced concrete. The advanced fiber not only contributes to the improvement of mechanical properties, but is more environmental-friendly and even more inexpensive than the traditional steel fiber [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…Basalt fiber is also regarded as a new highly-recommended reinforcement material in concrete compared to the relatively common types, including carbon, aramid, and glass fibers. As the quenching process is environmentally friendly with high security [ 17 , 18 ], such an innovative material has several advantages, such as high thermal and chemical resistance and excellent modulus [ 11 , 17 , 19 , 20 ]. Meanwhile, basalt fiber shows a higher tensile strength than E-glass fibers.…”

Section: Introductionmentioning

confidence: 99%

Engineering, Mechanical and Dynamic Properties of Basalt Fiber Reinforced Concrete

Qin

et al. 2023

Materials

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This study investigates the engineering and mechanical properties of basalt fiber-reinforced (FRF) concrete, giving special attention to residual flexural strength and dynamic modal parameters. These properties, which have not been thoroughly investigated elsewhere, are a precursor to structural design applications for dynamic compliant structures (i.e., bridges, offshore platforms, railways, and airport pavement). Accordingly, the standard notched flexural tests have been carried out to assess the basalt fiber-reinforced concrete’s residual flexural strength with an additional 0.125%, 0.25%, 0.375%, and 0.5% of volume fraction of basalt fiber. In addition, dynamic modal tests were then conducted to determine the dynamic modulus of elasticity (MOE) and damping of the FRF concrete beams. The results indicate that concrete’s toughness and crack resistance performance are significantly improved with added fiber in basalt fiber reinforced concrete, and the optimum fiber content is 0.25%. It also exhibits the highest increment of compressive strength of 4.48% and a dynamic MOE of 13.83%. New insights reveal that although the residual flexural performance gradually improved with the addition of basalt fiber, the damping ratio had an insignificant change.

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Mechanical anisotropy of ultra-high performance fibre-reinforced concrete for 3D printing

Cited by 81 publications

References 40 publications

A review of concrete 3D printed structural members

A review of concrete 3D printed structural members

The Construction of a Footbridge Prototype with Biological Self-Healing Concrete: A Field Study in a Humid Continental Climate Region

Engineering, Mechanical and Dynamic Properties of Basalt Fiber Reinforced Concrete

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