2012 Fiscal Year Final Research Report
Study on the Slump Loss Mechanism of Concrete and the Redacting Method
| Project/Area Number |
22560465
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Civil engineering materials/Construction/Construction management
|
|---|
| Research Institution | Tokai University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | コンクリート / 貧配合 / スランプロス / 増粘剤 |
|---|
| Research Abstract |
Since the workability of fresh concrete falls with time progress, it restricts construction. Therefore, not only the improvement in workability but maintenance is also necessary. Middle/high-strength concrete can obtain the slump loss reduction effect by using super plasticizer. However, in the case of lean mix proportion concrete, this effect is hardly obtained. Moreover, lean mix proportion concrete can be thinking that the fluidity of concrete has been influenced by the condition of mixing water. In this research, it showed clearly to be able to reduce slump loss by raising the water holding property of concrete. The way method for the ability to reduce the slump loss of lean-mix concrete by using both thickening agent and AE water reducing agent was proposed.
|
