Structural Behaviour of Slender Geopolymer Concrete BeamsWithout Stirrups

Jiandong Lu*, Yuguang Yang, Herbert van der Ham, Danny Fu

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

Geopolymer concrete is a new alternative material to conventional concrete with less carbon dioxide emissions. Researchers have reported much research on the material properties of geopolymer concrete. However, research on the behaviour of this newmaterial at the structural level is still limited, especially at a full-scale structural level. Three geopolymer concrete beams with a total height of 700mm were tested till the shear failure. The first two specimens were subjected to the monotonically increasing load until the shear failure. The third specimen was first loaded under sustained load at the level of 80 kN for three weeks to investigate the influence of shrinkage and creep on the cracking behaviour. Then the specimen was then unloaded and reloaded again to failure. Digital Image Correlation (DIC) measurement was used to measure the surface deformation of the whole span of the beam. The crack spacing, crack width and crack development were investigated using the DIC measurement. The experimental results showed that the shear capacity of tested geopolymer concrete beams is lower than the calculated result based on the Eurocode.
Original languageEnglish
Title of host publicationBuilding for the Future: Durable, Sustainable, Resilient.
Subtitle of host publicationProceedings of the fib Symposium 2023 - Volume 2
EditorsAlper Ilki, Derya Çavunt, Yavuz Selim Çavunt
PublisherSpringer
Pages835–845
Number of pages11
Volume350
ISBN (Electronic)978-3-031-32511-3
ISBN (Print)978-3-031-32510-6, 978-3-031-32513-7
DOIs
Publication statusPublished - 2023
EventInternational Symposium of the International Federation for Structural Concrete, fib Symposium 2023 - Istanbul, Turkey
Duration: 5 Jun 20237 Jun 2023

Publication series

NameLecture Notes in Civil Engineering
PublisherSpringer Cham
Volume350 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

ConferenceInternational Symposium of the International Federation for Structural Concrete, fib Symposium 2023
Country/TerritoryTurkey
CityIstanbul
Period5/06/237/06/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Full-scale test
  • Geopolymer concrete
  • Shear behaviour in beams without stirrups
  • Digital image correlation

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