Title:
COAL ASH CONCRETE AND COMPOUNDING METHOD THEREOF
Document Type and Number:
Japanese Patent JP3877562
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a coal ash concrete and a compounding method thereof which enables a large quantity and effective use of coal ash as concrete raw material.
SOLUTION: The unit cement quantity and water/cement ratio is determined on the basis of target strength of the concrete and, thereafter, the quantity of coal ash and aggregate to be compounded for cement and water of unit cement quantity and unit water quantity is determined. Coal ash is compounded for the unit cement quantity with outer percentage and the compounding quantity of fine aggregate of the weight corresponding to the coal ash quantity is decreased. Freshness property, strength and neutralizing speed of the concrete is regulated by the compounding quantity of the coal ash.
Inventors:
Yasunori Matsufuji
Tomoyuki Koyama
Tomoyuki Koyama
Application Number:
JP2001299521A
Publication Date:
February 07, 2007
Filing Date:
September 28, 2001
Export Citation:
Assignee:
Japan Science and Technology Agency
International Classes:
C04B28/02; C04B7/24; C04B18/10; (IPC1-7): C04B28/02; C04B7/24; C04B18/10
Domestic Patent References:
| JP11171615A | ||||
| JP11221821A | ||||
| JP10287455A | ||||
| JP9156971A | ||||
| JP10273354A | ||||
| JP2002068804A | ||||
| JP4002642A | ||||
| JP5330866A |
Other References:
小山 智幸 他,石炭灰を大量使用したコンクリートの強度・中性化特性,コンクリート工学年次論文集,2000年 6月 1日,第22巻 第2号,97-102頁
Attorney, Agent or Firm:
Yoshihiko Shimazoe