NDLI: Effects of ultrafine fly ash on the properties of high-strength concrete

Content Provider	Springer Nature Link
Author	Feng, Jingjing Liu, Shuhua Wang, Zhigang
Copyright Year	2015
Abstract	Ultrafine fly ash was added in the concrete mixtures in two different replacement ratios: 20 and 35 % in comparison with the control group. The water–to-binder ratio was 0.28. Standard curing and temperature matching curing methods were applied. Results showed that ultrafine fly ash decreased the adiabatic temperature rise of concrete and the bigger the replacement ratio, the more the decrease. It also decreased early compressive strength of concrete under standard curing condition, but it was compensated under temperature matching curing condition. Resistance to permeability of concrete was enhanced by ultrafine fly ash because the pore structure was improved. TG test reveals that the nucleation effect of ultrafine fly ash accelerated cement hydration. Temperature matching curing promoted the pozzolanic reaction of ultrafine fly ash at the early age. Non-evaporable water content was increased by ultrafine fly ash incorporation under standard curing condition, while at later age, under temperature matching curing condition it reduced the non-evaporable water content.
Starting Page	1213
Ending Page	1223
Page Count	11
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	121
Issue Number	3
e-ISSN	15882926
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-03-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ultrafine fly ash Curing condition Cement hydration Compressive strength Durability Physical Chemistry Analytical Chemistry Polymer Sciences Inorganic Chemistry Measurement Science and Instrumentation
Content Type	Text
Resource Type	Article
Subject	Physical and Theoretical Chemistry Condensed Matter Physics

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