Title: High-Strength and High-Performance Concrete in Korea

Author(s): Sung-Woo Shin

Publication: Symposium Paper

Volume: 159

Issue:

Appears on pages(s): 135-44

Keywords: Deep beams; ductility; durability; fiber reinforced concretes; fly ash; high-strength concretes; joints (junctions); silica fume

DOI: 10.14359/10053

Date: 2/1/1996

Abstract:
Recent developments concerning research on and application of high strength, high-performance concrete in Korea are reported in this paper. In 1990, the Department of Construction initiated the building of 2 million housing units in five new satellite cities around Seoul and mandated some taller buildings to properly shape the skylines of the new satellite cities. Since this project requires apartment buildings up to 30 stories highl, the technical necessity of using high-strength, high-perfermance concrete suddenly draws attention. In 1994, the Department of Construction initiated two research projects for a two-year period as the first phase of a research program. One of the projects is on improvement of concrete performance. Concrete performance is further divided into three categories: high strength concrete, durable concrete and flowing concrete. Concrete with 70 MPa compressive strength has been used in the Samsung Sin Dae-Bang Project in Seoul -a 28-story residential-commercial building with an 8-story basement. The concrete was placed in the shear walls at all eight basement levels. Concrete with a design strength of 42 MPa was used in the frame of the first ten floors above the basement, which are used for commercial purposes.