Full-scale pumping tests of low-viscosity ultra-high-strength concrete

Joo Ha Lee, Doo Yeol Yoo

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Low-viscosity ultra-high-strength concrete (UHSC) was newly developed by applying viscosity reduction methods, and full-scale pumping tests were performed on a pumping circuit with a total length of 525 m for the low-viscosity UHSC including 150 MPa, 180 MPa UHSC and 180 MPa ultra-high-strength fiber-reinforced concrete (UHSFRC). Concrete properties such as temperature, air content, slump flow, viscosity, compressive strength, and modulus of elasticity before and after pumping were compared. As a result, it was confirmed that pumping caused considerable changes in the properties of fresh concrete. In addition, the pumpability of the low-viscosity UHSCs was evaluated by measuring the pressure of the pipe and the discharge. It was found that the smaller the viscosity and the larger the pressure loss (pressure per unit pipe length), the larger the discharge.

Original languageEnglish
Article number102616
JournalJournal of Building Engineering
Publication statusPublished - 2021 Nov

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials


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