Title: Characteristics and Application of High-Durability Concrete

Author(s): Byung-Hwan Oh, WonKi Chung, Seun-Yup Chang and Kyu-Jung Lee

Publication: Symposium Paper

Volume: 172

Issue:

Appears on pages(s): 871-898

Keywords: Admixtures; blast furnace slag; deterioration; durability; fly ash; mix proportioning; optimization; service life; silica fume

DOI: 10.14359/6168

Date: 12/1/1999

Abstract:
The present study was to develop high-durability concrete(HDC) and to apply it to actual structures. For the improvement of durability of concrete structures, the appropriate mixture proportions with mineral admixtures or slag (fly ash, silica fume, blast-furnace slag) have been selected and applied to various experimental studies. Two ievels of strength such as high and normal strength concretes have have been considered. Various durability tests including resistance to freezing and thawing, resistance to steel corrosion, resistance to sulfate attack, and permeability were performed and the durability characteristics for each mixture proportion have been analyzed to develop high-durability concrete. In addition, several in-situ applications of HDC, i.e., tetrapod at Tangjin power plant, a reinforced concrete slab bridge at Euwang, and sewage treatment structure at Gayang, were executed and investigated. Then, the results of field applications were discussed with those of laboratory tests.