Grant-in-Aid for Developmental Scientific Research (B)
|Allocation Type||Single-year Grants |
|Research Institution||Nishinippon Institute of Technology |
TAKEDA Yoshitsugu (1993) Nishinippon Institute of Technology, Faculty of Engineering Associate Professor, 工学部, 助教授 (70125160)
佐治 泰次 (1992) 西日本工業大学, 工学部, 教授 (00037665)
TAGUCHI Shigehisa Ready Mixed Concrete Industry Association, Fukuoka Prefecture Technical Chief, 九州地区本部, 技術部長
YAKUSHIJI Teruo Ready Mixed Concrete Industry Association, Oita Prefecture Technical Chief, 技術委員長
TAKANO Masamitsu Oita University, Faculty of Engineering Research Associate, 工学部, 助手 (30206784)
SATO Yoshiaki Oita University, Faculty of Engineering Associate Professor, 工学部, 助教授 (30038111)
NAGAMATSU Seiki Oita University, Faculty of Engineering Professor, 工学部, 教授 (70037828)
竹田 吉紹 西日本工業大学, 工学部, 助教授 (70125160)
|Project Period (FY)
1992 – 1993
Completed (Fiscal Year 1993)
|Budget Amount *help
¥9,400,000 (Direct Cost: ¥9,400,000)
Fiscal Year 1993: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1992: ¥7,700,000 (Direct Cost: ¥7,700,000)
|Keywords||Industrial Waste Materials / Concrete Sludge / Sludge Water / Dried Sludge / Wasted Catalyst (FCC) / Diatomite / Fresh Concrete / Hardened Concrete|
The purpose of this study is to establish the effective use of the industrial waste materials. The authors have studied on the properties of concrete containing the industrial waste materials such as (1) slurry from ready mix concrete operations called concrete sludge, (2) wasted catalyst from oil refining operations and (3) diatomite.
Following experimental results were obtained ;
1. Concrete Sludge
(1) the fresh state of concrete was plastic and workable, although the viscousity slightly increased as the amount of sludge increased.
(2) except for the case that the water cement ratio was low such as 50% and the amount of sludge was over 5% by weight of cement, the unit water content and the drying shrinkage strain were scarcely affected by the amount of sludge.
(3) compressive strength did not decrease by adding the sludge into concrete.
2. Wasted Catalyst
compressive strength of hollow concrete blocks containing wasted catalyst did not decrease in the case that the amount of wasted catalyst was within 5% by weight of cement.
compressive strength of concrete containing diatomite did not decrease in the case that the amount of it was within 5% by weight of cement.