Rheological, mechanical and fire resistance performance of waste glass activated geopolymers for concrete 3D printing
Article
| Article Title | Rheological, mechanical and fire resistance performance of waste glass activated geopolymers for concrete 3D printing |
|---|---|
| ERA Journal ID | 201155 |
| Article Category | Article |
| Authors | Ramakrishnan, Sayanthan, Pasupathy, Kirubajiny, Manalo, Allan C. and Sanjayan, Jay |
| Journal Title | Journal of Sustainable Cement-Based Materials |
| Number of Pages | 16 |
| Year | 2025 |
| Publisher | Taylor & Francis |
| Place of Publication | United Kingdom |
| ISSN | 2165-0373 |
| 2165-0381 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1080/21650373.2025.2529994 |
| Web Address (URL) | https://www.tandfonline.com/doi/full/10.1080/21650373.2025.2529994 |
| Abstract | This study investigates the alkali activation of waste glass powder (WGP) for developing 3D printable geopolymer concrete. The rheological, mechanical, and fire-resistance of 3D printed concrete were evaluated to determine the effect of WGP as a partial substitution for fly ash in geopolymers. Rheological results show that incorporation of WGP reduces the rheological properties of printable mixes. For instance, the apparent viscosity of mixes containing 50% WGP was reduced by 48% at low shear rate (0.1 s−1), and 46% at high shear rate (100 s−1). The corresponding reductions in the dynamic yield stress and plastic viscosity were 35% and 55%, respectively, indicating improved flowability and pumpability. However, compressive strength declined with increased WGP. The 28-day mold-cast strength decreased from 51.4 MPa to 35.6 MPa at 50% WGP. In contrast, the elevated temperature properties are enhanced with reduced strength loss for the WGP incorporated specimens, attributed to the sintering effect of WGP. . |
| Keywords | waste glass powder; rheological properties; digital construction; porosity; sustainability |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 400505. Construction materials |
| 330201. Automation and technology in building and construction | |
| 401106. Waste management, reduction, reuse and recycling | |
| Byline Affiliations | School of Engineering |
| Centre for Future Materials | |
| SMEC Australia, Australia | |
| Swinburne University of Technology |
https://research.usq.edu.au/item/zz081/rheological-mechanical-and-fire-resistance-performance-of-waste-glass-activated-geopolymers-for-concrete-3d-printing
Download files
Published Version
| Rheological mechanical and fire resistance performance of waste glass activated geopolymers for concrete 3D printing.pdf | ||
| License: CC BY-NC-ND 4.0 | ||
| File access level: Anyone | ||
161
total views25
total downloads84
views this month7
downloads this month