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Evaluation of pozzolanic activity by the electric resistance measurement method

โœ Scribed by Chuichi Tashiro; Ko Ikeda; Yoshihiro Inoue

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
324 KB
Volume
24
Category
Article
ISSN
0008-8846

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โœฆ Synopsis

Measurements of electric resistance and amount of consumption of portlandite were carried out in accelerated curing conditions by preparing pastes of Fine Ceraments, fly ash, silica fume, kaolin, acid clay, zeolite and quartz activated with portlandite. Electric resistances of reactive pozzolans showed sharp rises except that of kaolin, whereas that of as inactive material, quartz, showed no sharp rise. Electric resistances are proportional to the consumptions of portlandite except for fly ashes. The electric resistance measurement method combined with portlandite consumption measurement is useful to the rapid evaluation of pozzolanic activity.

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