This paper describes with experimental study on repeatability of activity index test results of micro powder for ultra-high strength concrete based on mortar. This investigation led to the following conclusions. 1) It is possible to obtain a compressive strength test result of the standard mortar with repeatability by a present test method when used material is same. As a result, the repeatability of a result of the activity index test can also be secured. 2) To change the kind of chemical admixture has a high possibility which influences the repeatability of a result of the activity index test.
|Translated title of the contribution||Consideration in repeatability of activity index test results of micro powder for ultra-high strength concrete based on mortar|
|Number of pages||9|
|Journal||Journal of Structural and Construction Engineering|
|Publication status||Published - 2020 Sep|
ASJC Scopus subject areas
- Building and Construction