Evaluation of Superplasticizers in 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: Evaluation of Superplasticizers in Concrete

Author(s): P. K. Kherjee

Publication: Special Publication

Volume: 119

Issue:

Appears on pages(s): 625-644

Keywords: admixtures; compressive strength; concretes; drying shrinkage; evaluation; freeze-thaw durability; low-heat cements; plasticizers; nuclear reactor containment; segregation; workability; Materials Research

Date: 9/1/1989

Abstract:
The construction procedure of a nuclear containment concrete structure recently built required a highly workable concrete to facilitate placing around heavily congested steel embedments and reinforcements. Use of a superplasticizing admixture was considered essential. A test program was undertaken with several commercially available admixtures to study the properties of the fresh and hardened concrete made with low-heat cement (CSA: A5 Type 40). Under controlled conditions, four of these products met the construction requirements without adversely affecting the properties of the concrete.