The formation of portland cement clinker under applied electric fields. I. Thermal reaction sequence and kinetics of clinker phase formation

1979 ◽  
Vol 28 (1) ◽  
pp. 161-173 ◽  
Author(s):  
K.J.D. Mackenzie ◽  
R.A. Fletcher
Keyword(s):  
Portland Cement ◽  
Electric Fields ◽  
Phase Formation ◽  
Thermal Reaction ◽  
Cement Clinker ◽  
Reaction Sequence ◽  
Portland Cement Clinker ◽  
Kinetics Of

Effects of CaF2 on the Formation Kinetics of Portland Cement Clinker

2011 ◽  
Vol 306-307 ◽  
pp. 966-969
Author(s):  
Chun Fang Wang ◽  
Zong Hui Zhou ◽  
Cai Xia Liu ◽  
Xin Cheng
Keyword(s):  
Portland Cement ◽  
Formation Rate ◽  
Reaction Rate Constant ◽  
Cement Clinker ◽  
X Ray Diffraction ◽  
Free Lime ◽  
X Ray ◽  
Formation Kinetics ◽  
Portland Cement Clinker ◽  
Kinetics Of

Through testing the amount of the free lime and the Loss ignition, the clinker formation rate, the reaction-rate constant (K) and the activation energy (Ea) were calculated according to the Gentling equation and Arrhenius equation. The effects of CaF2on the formation kinetics of Portland cement clinker were investigated by analyzing theKandEa. X-ray diffraction (XRD) and scanning electron Microscope (SEM) were used to characterize the phase composition and the morphology of the resulting samples. The results show that the silicate minerals formation is promoted when a proper amount of CaF2is doped into the raw meal. TheKincreased from 0.7450 ×10-5s-1to 7.1588 ×10-5s-1and theEadecreased from 386 kJ/mol to 122 kJ/mol when the amount of CaF2increased from 0.0% to 2.0% in mass. However, the results were reversed at the amount of CaF2exceeding 2%.

Reaction Between Portland Cement Clinker and Water

Nature ◽  
1964 ◽  
Vol 203 (4941) ◽  
pp. 138-139 ◽  
Author(s):  
A. K. CHATTERJI ◽  
T. C. PHATAK
Keyword(s):  
Portland Cement ◽  
Cement Clinker ◽  
Portland Cement Clinker
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