Title:
PRODUCTION OF CONCRETE PRODUCT BY CENTRIFUGAL MOLDING
Document Type and Number:
Japanese Patent JPH11156840
Kind Code:
A
Abstract:
To obtain a concrete product by centrifugal molding which has good internal compaction properties even at low ambient temperatures.
After a concrete composition containing water, a high performance water reducing agent undiluted solution, cement, fine aggregate, and coarse aggregate being placed into a form at an ambient temperature at the highest 15°C, the form is rotated to apply centrifugal force to the concrete composition to compact the composition so that a concrete product is produced by centrifugal molding. In the is process, water is heated at 20-40°C, or the solution is heated at the lowest 20°C, or the mixture of water and the solution is heated at 16-40°C.
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Inventors:
SUGIYAMA AKINORI
NISHIOKA KOICHIRO
TERADA NORIKAZU
KAJIYA KEIICHIRO
NISHIOKA KOICHIRO
TERADA NORIKAZU
KAJIYA KEIICHIRO
Application Number:
JP32343197A
Publication Date:
June 15, 1999
Filing Date:
November 25, 1997
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP
International Classes:
C04B24/20; B28B21/32; B28C7/14; C04B103/30; (IPC1-7): B28B21/32; B28C7/14; C04B24/20
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)