Evaluation of pozzolanic activity by the electric resistance measurement method

Journal Article · Sat Jan 01 00:00:00 EST 1994 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(94)90037-X· OSTI ID:6885842

Tashiro, Chuichi; Ikeda, Ko ^[1]; Inoue, Yoshihiro ^[2]

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1. Yamaguchi Univ., Ube (Japan). Dept. of Advanced Materials Science and Engineering
2. Fuji Denki Kagaku Co., Ltd., Kosai (Japan)

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 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.

• OSTI ID: 6885842
• Journal Information: Cement and Concrete Research; (United States), Vol. 24:6; ISSN 0008-8846
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
01 COAL, LIGNITE, AND PEAT
ASHES
ACTIVATION ENERGY
ELECTRIC CONDUCTIVITY
WASTE PRODUCT UTILIZATION
CONCRETES
FLY ASH
PORTLAND CEMENT
AEROSOL WASTES
BUILDING MATERIALS
CEMENTS
COMBUSTION PRODUCTS
ELECTRICAL PROPERTIES
ENERGY
MATERIALS
PHYSICAL PROPERTIES
RESIDUES
WASTES
400201* - Chemical & Physicochemical Properties
360606 - Other Materials- Physical Properties- (1992-)
010800 - Coal
Lignite
& Peat- Waste Management