콘크리트의 壓縮强度에 미치는 굵은 골재 크기의 영향에 관한 基礎的 硏究 = A Fundamental Study of Effect of Aggregate Size on the Compressive Strength of Concrete

다국어 초록 (Multilingual Abstract)

The purpose of this study is to research an effect of aggregate size on the compressive strength of concrete. Tests were, therefore, made in sixteen classes of concrete : maximum aggregate sizes of 5, 10, 20, 30^mm with water cement rations of 40% and 60% and with AEA°cement rations of 0.00% and 0.03% for each maximum aggregate size.
The results of this experiment are showing the fellowing tendency.
1. Generally, with the range of this experiment program, the smaller maximum aggregate size becomes, the higher the compressive strength of concrete gets.
2. The decreasing tate of the compressive strength of concrete gets higher in lean mix concrete than in rich mix concrete at each age.
3. The compressive strength of concrete is developed faster with not only the increase of maximum aggregate size but also the decrease of water cement ratio.
And it shows that the rate of the compressive strength development is higher in AE concrete in spite of water cement ratio.