Title:
PRETREATMENT FOR POZZOLANIC ENHANCEMENT OF POZZOLAN MATERIAL
Document Type and Number:
Japanese Patent JPS61275153
Kind Code:
A
Abstract:
The pozzolanic properties of a pozzclenic meteriel, more particularly a fly ash, are improved by mixing the pozzolanic material with a calciumoxyde or caliumhydroxide containing materiel and weter in such a way that at the time of associating or bringing together the abovementioned components the mixture has or immediately attains a temperature of more then sec, preferably at least 80°C, most preferably 85 to 188°C.A mixture of pozzolanic material and calciumoxyde and/or calciumhydroxide may be preheated, subsequently, water being added to said mixture.Water as used may be hot water and said water is preferably added as one mass at one momentThe pozzolanic material obtained from the process of the invention is suitable as cement substitute, as material for manufacturing building articles and a binder for occluding one or more fillers to be introduced into a chemical process or one or more fillers presenting noxious properties.
Inventors:
LOGGERS HENDRIK (NL)
Application Number:
JP9115086A
Publication Date:
December 05, 1986
Filing Date:
April 18, 1986
Export Citation:
Assignee:
AARDELITE HOLDING BV
International Classes:
B09B5/00; C04B7/26; C04B28/18; C04B18/08; (IPC1-7): B09B3/00; C04B28/18
Attorney, Agent or Firm:
Eiji Saegusa