PRODUCTION OF ULTRA QUICK HARDENING CEMENT

Title:

PRODUCTION OF ULTRA QUICK HARDENING CEMENT

Document Type and Number:

Japanese Patent JPH0753244

Kind Code:

A

Abstract:

PURPOSE: To provide a production method of ultra quick hardening cement capable of efficiently producing the ultra quick hardening cement at a low burning temp. by using an inexpensive raw material.

CONSTITUTION: First, aluminum residual ash controlled in the metallic Al contents at 10-20wt.%, is prepared as an alumina source. Next, 35-40wt.% the aluminum residual ash, 55-60wt.% lime stone and 4-5wt.% fluorite are mixed to prepare a mixture. Subsequently, the mixture is burned at 1100-1200°C burning atmospheric temp. to obtain the ultra quick hardening cement.

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Inventors:

NEMOTO KENICHI
SATO KAZUYOSHI
KATAYAMA HARUO
TORII KAZUMA
MATSUURA HIROYUKI

Application Number:

JP20156393A

Publication Date:

February 28, 1995

Filing Date:

August 13, 1993

Export Citation:

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Assignee:

NIPPON KOKAN KK
SHINKO FLEX KK

International Classes:

C04B7/14; C04B7/147; C04B7/32; C04B7/345; (IPC1-7): C04B7/14; C04B7/345

Attorney, Agent or Firm:

Takehiko Suzue

Next Patent: HIGH-FERRITE HYDRAULIC ADMIXTURE, ITS PRODUCTION AND MIXED CEMENT USING THE ADMIXTURE