Influence of Crushed Stone Powder with Different Specific Surface Area on Fluidity of Crushed Sand Mortar
-
- SUZUKI Mariko
- Graduate School of Agriculture Science, Kobe University
-
- MATSUKA Takeju
- National Institute of Technology, Kumamoto College
-
- YOKOYAMA Minami
- National Institute of Technology, Kumamoto College
-
- MATSUSHITA Haruhiko
- Chuosaiseki Co., Ltd.
Bibliographic Information
- Other Title
-
- 比表面積の異なる砕石粉が砕砂モルタルの流動性に及ぼす影響
- ヒ ヒョウメンセキ ノ コトナル サイセキフン ガ サイサ モルタル ノ リュウドウセイ ニ オヨボス エイキョウ
Search this article
Abstract
<p>Production of crushed stone and crushed sand used as aggregate for concrete is classified into two types, dry process type and wet process type. In the dry process type, a large amount of crushed stone powder is produced as a by-product. In 2009, crushed stone powder was standardized by JIS A 5041. However, there is no discussion on the utilization method and the specific surface area of the crushed powder satisfactory. In this study, we made many types of mortar with different mix proportion. The mortar was made from two types of crushed sands which were produced from dry process and wet process, and three types of crushed stone powders with different specific surface areas. The table flow tests were conducted to clarify the fluidity of these mortar. As a result, it was revealed that the difference in the specific surface area of the crushed powder influences the fluidity of the mortar, and in particular, the crushed stone powder having a large specific surface area deteriorated the fluidity of the mortal remarkably. Therefore, it was suggested that the upper limit which is 9%, of fine particles quantity in crushed sand (JIS A 5005) could be moderated.</p>
Journal
-
- Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering
-
Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering 87 (2), I_143-I_148, 2019
The Japanese Society of Irrigation, Drainage and Rural Engineering
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390564238106951296
-
- NII Article ID
- 130007680298
-
- NII Book ID
- AA12240517
-
- ISSN
- 18847242
- 18822789
-
- NDL BIB ID
- 030233567
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- IRDB
- NDL
- CiNii Articles
-
- Abstract License Flag
- Disallowed