Effects of Chemical Admixtures onColloidal Underwater Concrete

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Effects of Chemical Admixtures onColloidal Underwater Concrete

Author(s): M. Kawakami, S. Wada, and K. Suzukawa

Publication: Special Publication

Volume: 119

Issue:

Appears on pages(s): 493-516

Keywords: admixtures; air-entraining agents; concretes; pH; plasticizers; setting (hardening); strength; turbidity; underwater construction; water-reducing agents; workability; Materials Research

Date: 9/1/1989

Abstract:
Describes the effect of superplasticizer (SP) and air-entraining water-reducing admixture (AE-WRA) on spread, turbidity, pH, flowability, setting time, and compressive strength of colloidal underwater concrete. In summary, the studies resulted in the following conclusions: Spread was affected considerably by the SP and was not controlled by the AE-WRA; turbidity was affected by both SP and AE-WRA when the apparent viscosity of the concrete was low; pH was affected somewhat by the SP and AE-WRA; flowability was affected considerably by the SP; setting time was affected by both SP and AE-WRA when water-cement ratio was lower; the strength of underwater concrete was not affected by SP or AE-WRA amounts.