Abstract—In this research, the degree of pozzolanic reaction
of fly ash in blended Portland cement pastes cured at different
temperatures was determined by the selective dissolution
method. The effect of curing temperature on pozzolanic
reaction was then investigated using the modified Jander’s
model. The results confirm that the pozzolanic reaction of fly
ash is strongly influenced by curing temperature and
replacement ratio of fly ash. The higher the curing temperature
and the lower the fly ash replacement ratio, the higher is the
degree of pozzolanic reaction of fly ash. The rate and
mechanism of pozzolanic reaction of fly ash vary with curing
temperature. Elevated curing temperatures lead to faster the
onset and accelerated the rate of the main reaction linearly.
Index Terms—Fly ash, pozzolanic reaction, cement paste,
curing temperature, hydration.
Mongkhon Narmluk is with the Department of Civil Technology
Education, Faculty of Industrial Education and Technology, King Mongkut’s
University of Technology Thonburi, Bangkok, Thailand (e-mail:
mongkhon.nar@kmutt.ac.th).
Toyoharu Nawa is with the Division of Sustainable Resources
Engineering, Graduate School of Engineering, Hokkaido University, Japan.
[PDF]
Cite: Mongkhon Narmluk and Toyoharu Nawa, "Effect of Curing Temperature on Pozzolanic Reaction of
Fly Ash in Blended Cement Paste," International Journal of Chemical Engineering and Applications vol. 5, no. 1, pp. 31-35, 2014.
