High-Strength Concrete for Building Construction

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Title: High-Strength Concrete for Building Construction

Author(s): Daisuke Tachibana, Hitoshi Kumagai, Nobuyuki Yamazaki, and Tadahiko Suzuki

Publication: Materials Journal

Volume: 91

Issue: 4

Appears on pages(s): 390-400

Keywords: compressive strength; fire resistance; high-strength concretes; segregation; slump tests; water content; water-reducing agents; Materials Research

DOI: 10.14359/4056

Date: 7/1/1994

Abstract:
In this study, tests were performed on mix proportions and material properties to investigate high-strength cast-in-place concrete with a specified strength of f' c = 58.8 MPa (600 kgf/cm 2) for use in building construction. The results indicate that concrete meeting the desired strength and durability, with satisfactory workability, can be obtained if: 1) the water-cement ratio is set to 0.285; 2) a slump of 23 cm is achieved by adding a slump-controlling-type high-range water-reducing agent; and 3) sound quality control is provided, using a water content control system. This type of high-strength concrete has actually been used in construction, and quality control testing confirms excellent results.


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