Technische Universität Braunschweig
  • Study & Teaching
    • Beginning your Studies
      • Prospective Students
      • Degree Programmes
      • Application
      • Fit4TU
      • Why Braunschweig?
    • During your Studies
      • Fresher's Hub
      • Term Dates
      • Courses
      • Practical Information
      • Beratungsnavi
      • Additional Qualifications
      • Financing and Costs
      • Special Circumstances
      • Health and Well-being
      • Campus life
    • At the End of your Studies
      • Discontinuation and Credentials Certification
      • After graduation
      • Alumni
    • For Teaching Staff
      • Strategy, Offers and Information
      • Learning Management System Stud.IP
    • Contact
      • Study Service Centre
      • Academic Advice Service
      • Student Office
      • Career Service
  • Research
    • Research Profile
      • Core Research Areas
      • Clusters of Excellence at TU Braunschweig
      • Research Projects
      • Research Centres
      • Professors‘ Research Profiles
    • Early Career Researchers
      • Support in the early stages of an academic career
      • PhD-Students
      • Postdocs
      • Junior research group leaders
      • Junior Professorship and Tenure-Track
      • Habilitation
      • Service Offers for Scientists
    • Research Data & Transparency
      • Transparency in Research
      • Research Data
      • Open Access Strategy
      • Digital Research Announcement
    • Research Funding
      • Research Funding Network
      • Research funding
    • Contact
      • Research Services
      • Academy for Graduates
  • International
    • International Students
      • Why Braunschweig?
      • Degree seeking students
      • Exchange Studies
      • TU Braunschweig Summer School
      • Refugees
      • International Student Support
      • International Career Service
    • Going Abroad
      • Studying abroad
      • Internships abroad
      • Teaching and research abroad
      • Working abroad
    • International Researchers
      • Welcome Support for International Researchers
      • Service for Host Institutes
    • Language and intercultural competence training
      • Learning German
      • Learning Foreign Languages
      • Intercultural Communication
    • International Profile
      • Internationalisation
      • International Cooperations
      • Strategic partnerships
      • International networks
    • International House
      • About us
      • Contact & Office Hours
      • News and Events
      • International Days
      • 5th Student Conference: Internationalisation of Higher Education
      • Newsletter, Podcast & Videos
      • Job Advertisements
  • TU Braunschweig
    • Our Profile
      • Aims & Values
      • Regulations and Guidelines
      • Alliances & Partners
      • The University Development Initiative 2030
      • Facts & Figures
      • Our History
    • Career
      • Working at TU Braunschweig
      • Vacancies
    • Economy & Business
      • Entrepreneurship
      • Friends & Supporters
    • General Public
      • Check-in for Students
      • CampusXperience
      • The Student House
      • Access to the University Library
    • Media Services
      • Communications and Press Service
      • Services for media
      • Film and photo permits
      • Advices for scientists
      • Topics and stories
    • Contact
      • General Contact
      • Getting here
  • Organisation
    • Presidency & Administration
      • Executive Board
      • Designated Offices
      • Administration
      • Committees
    • Faculties
      • Carl-Friedrich-Gauß-Fakultät
      • Faculty of Life Sciences
      • Faculty of Architecture, Civil Engineering and Environmental Sciences
      • Faculty of Mechanical Engineering
      • Faculty of Electrical Engineering, Information Technology, Physics
      • Faculty of Humanities and Education
    • Institutes
      • Institutes from A to Z
    • Facilities
      • University Library
      • Gauß-IT-Zentrum
      • Professional and Personnel Development
      • International House
      • The Project House of the TU Braunschweig
      • Transfer Service
      • University Sports Center
      • Facilities from A to Z
    • Equal Opportunity Office
      • Equal Opportunity Office
      • Family
      • Diversity for Students
  • Search
  • Quicklinks
    • People Search
    • Webmail
    • cloud.TU Braunschweig
    • Messenger
    • Cafeteria
    • Courses
    • Stud.IP
    • Library Catalogue
    • IT Services
    • Information Portal (employees)
    • Link Collection
    • DE
    • EN
    • Instagram
    • YouTube
    • LinkedIn
    • Mastodon
    • Bluesky
Menu
  • Organisation
  • Faculties
  • Faculty of Mechanical Engineering
  • Institutes
  • Institute for Particle Technology
  • Research
  • Powder and Slurry Processes
  • Current research projects
Logo des Instituts für Partikeltechnik
Particle-Bed 3D Printing
  • Current research projects
    • DiRectION
    • ECRA project
    • [Translate to English:] Entwicklung eines Formulierungs- und Vermahlungsverfahrens
    • Development of surface tailored metal powders
    • Charge-based selective separation
    • Particle-Bed 3D Printing _(A01)
    • Particle-Bed 3D Printing
    • PyroLith
    • Rapid-Tungsten
    • Silicon Graphite goes Industry

Particle-Bed 3D Printing

Particle-Bed 3D Printing by Selective Cement Paste Intrusion (SPI) – Particle Surface Functionalisation, Particle Synthesis and Integration of WAAM Reinforcement

Development and Production of New and Tailored Particles for the Combined SPI and WAAM Process in Concrete 3DP

Funded by: DFG

Contact person: Leigh Duncan Hamilton

Summary of the overall project:

Additive manufacturing (3D-Printing, 3DP) in construction is an up-and-coming methodology to create a diverse palette of bionic-optimised components, thus, leading to cost efficient as well as material efficient structures. Furthermore, additive manufacturing methods are capable of producing free form structures without moulds or special tools. This results in a certain independence between production costs and complexity of the individual components.
he project at hand is funded by the DFG and part of the collaborative research centre “TRR 277 Additive Manufacturing in Construction (AMC)”. It involves a combination of the particle-bed based AM technology “Selective Cement Paste Intrusion (SPI)” and the simultaneous 3DP method “Wire and Arc Additive Manufacturing (WAAM)” as a means of reinforcement. Within SPI, an aggregate layer of sand is spread on a surface, followed by the local intrusion of the cement paste into the aggregate layer. These steps are repeated and the consequent hardening forms the structure. WAAM, on the other hand, uses arc welding to melt a metal wire in the correct positions, and thus, create a component layer-by-layer.

Schematische Darstellung der Kombination aus SPI und WAAM

Figure 1: Production cycle of SPI with WAAM reinforcement
 
Consequently, the combination of SPI and WAAM is linked to obstacles that must be overcome in order to ensure an efficient process as well as fundamentally sound components. The most pronounced challenge is the occurrence of high temperatures (approx.. 1600 °C) during WAAM. As a result, the penetration behaviour of the cement paste and the subsequent strength of the concrete matrix are affected in a negative manner.
The main objective as a partner at iPAT is to create tailored particles for the combined process as a whole. This includes the adjustment of particle size distribution and morphology for the aggregate as well as the cement paste with dry operated various mills. Another important aspect is the mixing of additives into the aggregate bed. Thereby, the temperature distribution in particle beds and cooling effects of the additives will be investigated. Future steps also cover the variation of water content within the cement paste as well as the coating these of particles.

 

Links: Versuchsstand zur Temperaturverteilung in Schüttung; Rechts: Aufnahme der Temperaturentwicklung durch WAAM

Figure 2: Left: Test rig for temperature distribution in particle-beds; Right: Heat propagation as a result of WAAM
 
 

Project partners
Chair of Material Science and Testing as well and the Institute for Machine Tools and Industrial Management at the Technical University of Munich.

 

Photo credits on this page

For All Visitors

Vacancies of TU Braunschweig
Career Service' Job Exchange 
Merchandising

For Students

Term Dates
Courses
Degree Programmes
Information for Freshman
TUCard

Internal Tools

Glossary (GER-EN)
Change your Personal Data

Contact

Technische Universität Braunschweig
Universitätsplatz 2
38106 Braunschweig

P. O. Box: 38092 Braunschweig
GERMANY

Phone: +49 (0) 531 391-0

Getting here

© Technische Universität Braunschweig
Legal Notice Privacy Accessibility

TU Braunschweig uses the software Matomo for anonymised web analysis. The data serve to optimise the web offer.
You can find more information in our data protection declaration.