Effects of fiber content on mechanical properties of UHPFRC with coarse aggregates

Y.Y.Y. Cao, Qingliang Yu, Peipeng Li, Jos Brouwers

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

3 Downloads (Pure)

Samenvatting

Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) is a relatively new construction material with superior mechanical properties. The addition of fibers in UHPFRC has been recognized to significantly enhance its tensile strength, post-cracking ductility and energy absorption capacity. This study investigates the influence of fiber content on the mechanical properties of UHPFRC with coarse aggregates. By applying the Brouwers design method, UHPFRC with a maximum particle size of 8 mm is achieved. The incorporation of coarse basalt aggregates reduces the powder volume fraction in the matrix, and hence brings economic and environmental benefits. Experiments are conducted to investigate the effects of fiber content on the tensile and compressive strengths, as well as the flexural behavior of the UHPFRC. The results show that the compressive strength of the UHPFRC is almost independent on the fiber content. On the contrary, the tensile and the flexural strengths are significantly increased with the increase of the fiber content, and consequently the toughness of the UHPFRC composite has a prominent enhancement with the addition of the steel fibers as well.
Originele taal-2Engels
Titel2nd International Interactive Symposium on UHPC
Aantal pagina's8
StatusNiet gepubliceerd - 2019
Evenement2nd International Interactive Symposium on UHPC - Albany, Verenigde Staten van Amerika
Duur: 2 jun 20195 jun 2019

Congres

Congres2nd International Interactive Symposium on UHPC
LandVerenigde Staten van Amerika
StadAlbany
Periode2/06/195/06/19

Vingerafdruk Duik in de onderzoeksthema's van 'Effects of fiber content on mechanical properties of UHPFRC with coarse aggregates'. Samen vormen ze een unieke vingerafdruk.

  • Citeer dit

    Cao, Y. Y. Y., Yu, Q., Li, P., & Brouwers, J. (2019). Effects of fiber content on mechanical properties of UHPFRC with coarse aggregates. Niet gepubliceerd. In 2nd International Interactive Symposium on UHPC