An experimental study on the fluidity of antiwashout underwater concrete

Nobuaki Otsuki, Makoto Hisada, Shigeyoshi Nagataki, Toshiro Kamada

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


This paper shows that the fluidity of antiwashout underwater concrete can be estimated from the volume fraction of coarse aggregate and the mortar flow. A reasonable mix design can be made with only rheological data of mortar and data on coarse aggregate, which can reduce the tremendous task of trial mix to make a reasonable mix design. This paper also shows that if the mortar flow was more than 250 mm or the viscosity of mortar was less than 8 MPa, the segregation resistance of the concrete may not be satisfactory. It also shows a difference between the properties of mortar mixed with and without coarse aggregate.

Original languageEnglish
Pages (from-to)20-25
Number of pages6
JournalACI Materials Journal
Issue number1
Publication statusPublished - 1996 Jan 1
Externally publishedYes


  • Coarse aggregates
  • Fluidizing
  • Underwater construction
  • Viscosity

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)


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