Kinetics of alite formation and ye’elimite decomposition in alite-ye’elimite cement clinker

2021 ◽  
Author(s):  
Jiaoling Zheng ◽  
Shuaifei Wei ◽  
Qianqian Wang ◽  
Xiaodong Li ◽  
Suhua Ma
Keyword(s):  
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%.

The Effects of Rotation and Revolution Speed Ratio on the Grinding Kinetics of Cement Clinker in Horizontal Planetary Ball Mill

2013 ◽  
Vol 821-822 ◽  
pp. 1394-1397
Author(s):  
Hai Yan Qian ◽  
Qing Gang Kong ◽  
Jin Shi Chen
Keyword(s):  
Ball Mill ◽  
Planetary Ball Mill ◽  
Cement Clinker ◽  
Speed Ratio ◽  
Specific Rate ◽  
Revolution Speed ◽  
Effects Of Rotation ◽  
Grinding Kinetics ◽  
Steel Balls ◽  
Kinetics Of

The effects of rotation and revolution speed ratio on the grinding kinetics of cement clinker were studied in a horizontal planetary ball mill. The grinding media and material were used in the tests: 20mm diameter steel balls, cement clinker of-2.36+2.00mm. The rotation and revolution speed ratio is 1, 1.5, 2, 2.5, 3 and 3.5. The results show that cement clinker obeys first-order grinding kinetics at different rotation and revolution ratio. The specific rate of breakage reaches the highest when the ratio equals to 2. γ achieves minimal value at ratio q=2 and 2.5. At the same time, φ and β values reach the lowest value.

Influence of CaF2 on the Formation Kinetics of Belite-Calcium Barium Sulphoaluminate Cement Clinker

2014 ◽  
Vol 541-542 ◽  
pp. 118-122
Author(s):  
Yong Bo Huang ◽  
Shou De Wang ◽  
Yan Ting Zhao ◽  
Chen Chen Gong ◽  
Ling Chao Lu
Keyword(s):  
Activation Energy ◽  
Energy Consumption ◽  
Diffusion Mechanism ◽  
Cement Clinker ◽  
Preparation Process ◽  
Sulphoaluminate Cement ◽  
Formation Kinetics ◽  
Formation Dynamics ◽  
Kinetics Of ◽  
Experimental Preparation

This paper studies the formation dynamics of belite-calcium barium sulphoaluminate cement clinker with and without CaF2. The results suggest that, under the condition of the experimental preparation process, the formation process of belite-calcium barium sulphoaluminate cement clinker is controlled by diffusion mechanism in the temperature range of 1250-1380¡æ and the formation dynamics fits nicely with D4̍́˽̂ځ˿̃˽˸́˽ځ˹2/3=kt. Apparent activation energy was calculated to be 250 kJ·mol-1and 195 kJ·mol-1 for sample clinker without and with 0.6% CaF2 content. It is concluded that CaF2 contributes a lot to the reduction in energy consumption during the process of sintering belite-calcium barium sulphoaluminate cement clinker.

Effects of circulating load and grinding feed on the grinding kinetics of cement clinker in an industrial CKP mill

2014 ◽  
Vol 253 ◽  
pp. 193-197 ◽  
Author(s):  
Hua Wei ◽  
Yaqun He ◽  
Shuai Wang ◽  
Weining Xie ◽  
Weiran Zuo ◽  
...  
Keyword(s):  
Cement Clinker ◽  
Grinding Kinetics ◽  
Kinetics Of

Formation Kinetics of Regenerated Cement Clinker Calcined by Using Wasted Recycling Concrete Powders as Raw Meals

2014 ◽  
Vol 1073-1076 ◽  
pp. 1309-1312 ◽  
Author(s):  
Jie Zhang ◽  
Zong Hui Zhou ◽  
Xin Cheng
Keyword(s):  
Reaction Rate ◽  
Sintering Temperature ◽  
High Strength ◽  
Reaction Rate Constant ◽  
Cement Clinker ◽  
Formation Kinetics ◽  
Portland Cement Clinker ◽  
Microstructure Morphology ◽  
Cement Clinkers ◽  
Kinetics Of

Artificial aggregates with high strength and a similar mineral composition to Portland cement clinker are made up of industrial waste and limestone, which are prepared for recycling concrete. Regenerated cement clinker is fabricated by recycling concrete powder added with a small amount of correction raw materia. Through the Gentling equation computing and microstructure morphology observation, the apparent activation energy (Ea) of two kinds of regenerated cement clinkers are 199 kJ/mol and 333 kJ /mol respectively, which is lower than that of traditional cement clinker (518 kJ/mol). The reaction rate constant (k) of regenerated cement clinker are about 4.8108×10-5 s-1 and 2.5003×10-5 s-1 at 1350°C. At the process of calcination, the formation temperature of C3S and sintering temperature of regenerated cement clinker are lower than that of the traditional cement clinker.

scholarly journals Kinetics of grinding for cement clinker using new industrial grinding aids

2018 ◽  
Vol 1 (1) ◽  
pp. 12-20
Author(s):  
I. P. Polyuzhyn ◽  
◽  
Z. M. Il’nyts’kyi ◽  
F. I. Tsyupko ◽  
M. M. Laruk ◽  
...  
Keyword(s):  
Cement Clinker ◽  
Grinding Aids ◽  
Kinetics Of
Sign in / Sign up

Export Citation Format

Share Document