Optimization of Coarse Aggregate UHPC Composition for UHPC-Filled Steel Tubes / Hollow Precast Concrete Columns

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

UHPC-filled steel tubes / hollow precast concrete columns are most advantageous for the columns of a high-rise building or bridge piers subjected to the extensive compressive loading. This paper presents the development of various coarse aggregate UHPCs with different binders for the core of these composite columns. The use of the most compatible materials, the optimizations of binders and aggregates resulted in self-compacting UHPCs with maximum grain sizes of 12 mm or 16 mm possessing a good slump-flow of 75-80 cm, an excellent segregation resistance, a compressive strength of 180-190 MPa and a low / no autogenous shrinkage of -0.300‰ to +0.025‰.
Original languageEnglish
Title of host publicationUltra-High Performance Concrete and High Performance Construction Materials: Proceedings of HiPerMat 2020
Subtitle of host publicationSchriftenreihe Baustoffe und Massivbau
EditorsEkkehard Fehling, Bernhard Middendorf
Place of PublicationKassel University
PublisherKassel University Press
ChapterMix Design & Packing Density
Pages5-6
Number of pages2
Volume32
ISBN (Electronic)978-3-7376-0829-9
ISBN (Print)978-3-7376-0828-2
Publication statusPublished - 11 Mar 2020

Keywords

  • Ultra-High Performance Concrete
  • High Performance Construction Materials

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    Kim, H. H., Huß, M., Vojvodic, G., & Nguyen, V. T. (2020). Optimization of Coarse Aggregate UHPC Composition for UHPC-Filled Steel Tubes / Hollow Precast Concrete Columns. In E. Fehling, & B. Middendorf (Eds.), Ultra-High Performance Concrete and High Performance Construction Materials: Proceedings of HiPerMat 2020: Schriftenreihe Baustoffe und Massivbau (Vol. 32, pp. 5-6). [3] Kassel University: Kassel University Press.