Dielectric and Spectroscopic Studies of A Fly Ash Blended Cement Paste

  •  K. Thiruppathi    
  •  S. Barathan    
  •  N. Anandhan    
  •  D. Govindarajan    


The dielectric constant (?') of Sulfate Resisting Portland Cement (SRPC) blended with 30% of fly ash by addition is
measured using microwave bench at 9.54 GHz, for initial 30 hours of hydration. The heat of hydration for the same
blend using heat of solution calorimetry is also measured. It is observed that contrary to the usual trend of retarding of
fly ashes, it shows an accelerating trend with increasing strength as times passes. SEM micrographs and XRD patterns
are also recorded and observed that C4Al2SO16 (C4A3S¯) is found to be responsible for the accelerating trend of the mix.
The hydration process in the early period is studied and it is suggested that suitable retarder should be adopted for the
effective utilization.
Cement chemistry notations: C=CaO, A=Al2O3, S¯=SO3, H=H2O, F=Fe2O3, S=SiO2

This work is licensed under a Creative Commons Attribution 4.0 License.
  • ISSN(Print): 1916-9698
  • ISSN(Online): 1916-9701
  • Started: 2009
  • Frequency: semiannual

Journal Metrics

h-index (December 2020): 28

i10-index (December 2020): 112

h5-index (December 2020): N/A

h5-median(December 2020): N/A

( The data was calculated based on Google Scholar Citations. Click Here to Learn More. )