applsci-logo

Journal Browser

Journal Browser

3D Printing and Digital Technologies in Concrete

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Civil Engineering".

Deadline for manuscript submissions: closed (20 April 2023) | Viewed by 3114

Special Issue Editors


E-Mail Website
Guest Editor
Department of Civil Engineering, Stellenbosch University, Stellenbosch 7600, South Africa
Interests: 3D concrete printing; rheology; nanomaterials; analytical modeling; concrete material technology; construction materials; mechanics; thixotropy; advanced materials; reinforced concrete; additive manufacturing; structural engineering; fire safety engineering

E-Mail Website
Guest Editor
Department of Civil Engineering, Stellenbosch University, Stellenbosch 7600, South Africa
Interests: finite element method; concrete; structural engineering; concrete technologies; construction materials; corrosion; civil engineering; finite element analysis; composites; cement
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Digital technologies in concrete, such as additive extrusion, shotcrete and particle-bed-based 3D printing, as well as subtractive manufacturing including milling, are rapidly penetrating the built environment industry, both in practice and academia, promising significant time, cost and environmental benefits through the digital transformation of construction processes.

In light of this, this Special Issue is dedicated to presenting the state-of-the-art in 3D printing and digital technologies in concrete, publishing high-quality original research papers within the following subfields:

  • Sustainable materials;
  • Microstructure characterisation;
  • Fresh state behaviour;
  • Reinforcement strategies;
  • Technological developments;
  • Durability investigations;
  • Structural engineering;
  • Hardened state behaviour;
  • Mechanical performance;
  • Numerical modelling strategies;
  • Quality control processes;
  • Software advancements.

We welcome all contributions and especially encourage fresh perspectives from our industry community to facilitate industry–academia collaboration, communication and synchronisation.

Dr. Jacques Kruger
Prof. Dr. Gideon van Zijl
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • 3D concrete printing
  • concrete and digital fabrication
  • digital technologies in concrete
  • digital transformation in construction
  • additive and subtractive manufacturing in construction

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

16 pages, 6813 KiB  
Article
Investigating the Poisson Ratio of 3D Printed Concrete
by Jacques Kruger and Jean-Pierré van der Westhuizen
Appl. Sci. 2023, 13(5), 3225; https://doi.org/10.3390/app13053225 - 2 Mar 2023
Cited by 7 | Viewed by 2620
Abstract
Poisson’s ratio, defining the lateral to longitudinal strain of a material under uniaxial load, is an extensively used material property in engineering analysis and design. For conventionally cast concrete, an isotropic static Poisson ratio typically ranges between 0.15 to 0.25. However, no ratio [...] Read more.
Poisson’s ratio, defining the lateral to longitudinal strain of a material under uniaxial load, is an extensively used material property in engineering analysis and design. For conventionally cast concrete, an isotropic static Poisson ratio typically ranges between 0.15 to 0.25. However, no ratio has been established for 3D printed concrete, and is currently widely assumed to be 0.2 and isotropic in computational modelling applications. This layer-wise additive manufacturing technology is notorious for yielding orthotropic mechanical properties due to the presence of weak interlayer regions at the structural level and elongated oblate voids at the material level. This study therefore aims to characterise the static Poisson ratio of printed concrete. Specimens were prepared from a printed element and uniaxially tested both parallel and perpendicular to the printing direction. Digital image correlation technology was employed to facilitate the capturing of specimen strains, followed by micro-computed tomography scans to determine void topography. The results indicate larger Poisson ratios apply for 3D printed concrete compared to its cast counterpart; up to 17 and 33% increases were obtained when printed specimens were tested perpendicular and parallel to the printing direction, respectively. This orthotropic behaviour is ascribed to the oblate voids present in the printed specimens. Full article
(This article belongs to the Special Issue 3D Printing and Digital Technologies in Concrete)
Show Figures

Figure 1

Back to TopTop