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.