| Title |
Influence of Mixing and Construction Factor on the Bleeding of Concrete |
| Authors |
Han Cheon-Goo ; Hwang Yin-Seong |
| Keywords |
Bleeding of Concrete ; Mixing Factor ; Construction Factor |
| Abstract |
This study is focused on the influence of mixture factors such as water content and sand percentage, and construction factors such as placing height, curing temperature and compacting method on the fundamental properties and bleeding of concrete. According to the results, amount of bleeding with mixture factor increases with increase of water contents, and increases due to the lack of viscosity as W/C grows high. Bleeding also increases remarkably because separation of material occurs under the appropriate sand percentage. Amount of bleeding with construction factors is larger in the case of placing height of 1m than in the case of placing height of 0 and 0.5m. Amount of bleeding is larger at the temperature of 20℃ than at the temperature of 35℃ and 5℃, and increases in order of vibration compacting, standard compacting and non compacting. The more compacting, the more bleeding floats at early stage, and so the total amount of bleeding also increases. |