Journal
ADVANCES IN CEMENT RESEARCH
Volume 28, Issue 5, Pages 320-327Publisher
ICE PUBLISHING
DOI: 10.1680/jadcr.15.00077
Keywords
admixture; hydration; temperature-related & thermal effects
Funding
- Tsinghua University Initiative Scientific Research Program [20131089239]
Ask authors/readers for more resources
Hydration heat evolutions and non-evaporable water contents of binders and reaction degrees of fly ash and ground granulated blast-furnace slag (GGBS) were tested to investigate the contributions of fly ash and GGBS to the early hydration heat of composite binders at 25 degrees C and 50 degrees C. Results show that fly ash makes a very small contribution to the early hydration heat of composite binder at 25 degrees C, but GGBS makes a considerable contribution at 25 degrees C. Elevated temperature enhances the contributions of both fly ash and GGBS to the early hydration heat of composite binder significantly. The promoting effect of elevated temperature on the hydration heat and non-evaporable water content of GGBS binder is greater than that of fly ash binder. The reaction heat per unit mass of GGBS is only 16.7% higher than that of fly ash. The main reason for the difference of hydration heats between GGBS binder and fly ash binder is that GGBS shows much higher hydraulic activity than fly ash.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available