• Magazine of the Korea Concrete Institute
• /
• v.7 no.6
• /
• pp.92-98
• /
• 1995

• Magazine of the Korea Concrete Institute
• /
• v.22 no.6
• /
• pp.44-49
• /
• 2010

• Magazine of the Korea Concrete Institute
• /
• v.27 no.5
• /
• pp.10-15
• /
• 2015

• Magazine of the Korea Concrete Institute
• /
• v.27 no.5
• /
• pp.21-24
• /
• 2015

• Journal of the Korean Recycled Construction Resources Institute
• /
• v.6 no.2
• /
• pp.74-80
• /
• 2011

In this study, it is evaluated on the properties of mechanical performance, autogenous shrinkage and chloride resistance for application of high performance concrete for bridge deck overlay used slag powder and fly ash as a representative by-product of industrialization. According to test results, it is evaluated that the durability of concrete is improved the properties of chloride resistance, autogenous shrinkage and alkali aggregate reaction by using hydraulic mineral admixtures. It is considered to have a green construction and an economic feasibility on recycling of by-product as a improved concrete for durability and efficiency in materials and constructions.

• Journal of the Korea institute for structural maintenance and inspection
• /
• v.7 no.1
• /
• pp.173-179
• /
• 2003

Currently, in the mix design of high strength concrete, cement content depend on the target slump which is fixed with tests. However this cause high content cement use because it is based on the mix design of normal strength concrete. Also, comparatively high content cement might decrease the durability of the concrete. Therefore, in this study, we investigated proper cement content satisfying durability, workability, compressive strength, and reviewed use of admixtures, proper sand-aggregate ratio to the cement content. The results indicate that cement content ranging $370{\sim}550kg/m^3$ did not affect the compressive strength. The field workers should consider durability, workability as well as compressive strength for determining the optimal cement content in the mix design of the high strength concrete.

• Journal of the Korea Concrete Institute
• /
• v.13 no.1
• /
• pp.9-15
• /
• 2001

The low-durability performance of concrete structure occurs by interactive deterioration factors. In particular, carbonation increased with its time elapse is known as the general manner of deterioration characteristics. Recently, the fundamental researches of the carbonation mechanism, besides method and technique for durability improvement of deteriorated structure are advanced actively. So in this paper, alkali-recovery and maintenance performance when the impregnating alkalization agents are used, are compared and examined quantitively with the basis of past proposed study. As a result, alkali-recovery performance be ensured by impregnating alkalization agent on the carbonated concrete which has low pH by accelerated carbonation test. And alkali maintenance performance was effected by the finishing materials on the alkali recovered concrete.

• Magazine of the Korea Concrete Institute
• /
• v.11 no.5
• /
• pp.66-72
• /
• 1999

• Magazine of the Korea Concrete Institute
• /
• v.13 no.4
• /
• pp.94-100
• /
• 2001

• Magazine of the Korea Concrete Institute
• /
• v.9 no.3
• /
• pp.63-70
• /
• 1997