Construction of a High-Rise Reinforced Concrete Residence Using High-Strength Concrete


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Title: Construction of a High-Rise Reinforced Concrete Residence Using High-Strength Concrete

Author(s): A. Takahata, T. Iwashimizu, and U. IshibashiI

Publication: Special Publication

Volume: 121


Appears on pages(s): 741-756

Keywords: concrete construction; high-rise buildings; plasticizers; quality control; reinforced concrete; residential buildings; high-strength concretes; tests; Construction

Date: 11/1/1990

Results of studies on the application of a high-strength concrete, with compressive strength of 42 to 60 MPa, to a high-rise reinforced concrete residence are presented. First, experiments were performed in accordance with the construction procedure, applying full-scale test structure modeling on part of the actual building. As a result, workable high-strength concrete was achieved by using a high-range water-reducing agent at the plant where concrete is being manufactured, and by adding a superplasticizer and placing the concrete carefully on site. In addition, for the quality control method of a ready-mixed concrete, water-cement ratio measurement before placement was useful. It is desirable to control the structure strength of high-strength concrete by not only using a test specimen cured in water on site, but also by taking out core specimens. Secondly, requirements for a construction method were set, by reference to the test results, and construction of the actual building was undertaken. Results of all the tests satisfied the requirements necessary to demonstrate the stable manufacturing control of ready-mixed concrete.