Effects of Glycerol-Waste Antifreeze Based Grinding Aids on Cement Grinding Characteristics

Abstract:

Grinding aids to increase grinding efficiency in cement production are materials that can produce large amounts of high-quality cement in a short time by reducing surface energy by preventing particle agglomeration and improving fluidity. In the paper, a grinding aid using glycerol-waste antifreeze(GAP) is prepared and its effect on the grinding properties of clinker is investigated in contrast to that without the grinding aid. The results are as follows: The angle of repose of the cement powder added with GAP decreases as the grinding time increases (decreases by 3.8° when the grinding time is 60 minutes), indicating that it increases the flowability of the powder. On the contrary, the residual amount of 45µm sieve is also significantly reduced (4.6% decrease) and the specific surface area increases (30.5m²/kg), which results in an increase in the grinding efficiency. In the size range of 3 to 32µm, it increases the particle content, makes the particle size distribution uniform, the 7d and 28d activity index of the powder is improved by 5% and 6%, respectively, and increases the compressive strength of the cement. In addition, it is confirmed that the performance of the TEA grinding aid and the grinding aid are similar, and are very effective in terms of economy.

• Periodical: Advanced Materials Research (Volume 1167)
• Pages: 67-75
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1167.67
• Online since: November 2021
• Authors: Jin Hyok Ri*, Yong Ho Kim, Yong Su Hwang, Song Gun Kang, Ju Hyon Yu
• Keywords: Cement, Clinker, Glycerol, Grinding Aid, Waste Antifreeze

References

[1] W. Jehle, T. Staneff, B. Wagner, Separation of glycol and water from coolant liquids by evaporation, reverse osmosis and pervaporation, J. Memb. Sci. 102 (1995) 9-19.

DOI: 10.1016/0376-7388(94)00202-a

[2] F. Zunino, K. Scrivener, Increasing the kaolinite content of raw clays using particle classification techniques for use as supplementary cementitious materials. Constr. Build. Mater. 244 (2020) 118335.

DOI: 10.1016/j.conbuildmat.2020.118335

[3] P. Prziwara, Comparative study of the grinding aid effects for dry fine grinding of different materials, Miner. Eng. 144 (2019) 106030.

DOI: 10.1016/j.mineng.2019.106030

[4] H. Jung, Y. Lee, W. Yoon, Effect of moisture content on the grinding process and powder properties in food: a review, Processes 6 (2018) 69.

DOI: 10.3390/pr6060069

[5] W. Li, The mechanochemical process and properties of Portland cement with the addition of new alkanolamines, Powder Technol. 286 (2015) 750–756.

DOI: 10.1016/j.powtec.2015.09.024

[6] N.A. Toprak, The influences and selection of grinding chemicals in cement grinding circuits, Constr. Build. Mater. 68 (2014) 199–205.

DOI: 10.1016/j.conbuildmat.2014.06.079

[7] P. Prziwara, S. Breitung-Faes, A. Kwade, Impact of the powder flow behavior on continuous fine grinding in dry operated stirred media mills, Miner. Eng. 128 (2018) 215–223.

DOI: 10.1016/j.mineng.2018.08.032

[8] P. Prziwara, Impact of grinding aids and process parameters on dry stirred media milling, Powder Technol. 335 (2018) 114-123.

DOI: 10.1016/j.powtec.2018.05.021

[9] H.S. Gökcen, S. Cayırlı, Y. Ucbas, K. Kayaci, The effect of grinding aids on dry micro fine grinding of feldspar, Int. J. Miner. Process. 136 (2015) 42–44.

DOI: 10.1016/j.minpro.2014.10.001

[10] C.F. Burmeister, Experimental and computational investigation of knoevenagel condensation in planetary ball mills, Chem. Eng. Technol. 37 (2014) 857–864.

DOI: 10.1002/ceat.201300738

[11] P. Prziwara, Grinding aids for dry fine grinding processes – Part I: Mechanism of action and lab-scale grinding, Powder Technol. 375 (2020) 146-160.

DOI: 10.1016/j.powtec.2020.07.038

[12] O.Y. Toraman, Effect of chemical additive on stirred bead milling of calcite powder, Powder Technol. 221 (2012) 189–191.

DOI: 10.1016/j.powtec.2011.12.067

[13] Z. Sun, A grindability model for grinding aids and their impact on cement properties, Adv. Cem. Res. 28 (2016) 475–484.

[14] J. Zhao, D. Wang, P. Yan, S. Zhao, D. Zhang, Particle characteristics and hydration activity of ground granulated blast furnace slag powder containing industrial crude glycerol-based grinding aids, Constr. Build. Mater. 104 (2016) 134–141.

DOI: 10.1016/j.conbuildmat.2015.12.043

[15] N. Alper Toprak, Okay Altun, Namık Aydogan, Hakan Benzer: The influences and selection of grinding chemicals in cement grinding circuits, Constr. Build. Mater. 68 (2014) 199–205.

DOI: 10.1016/j.conbuildmat.2014.06.079

[16] S. Ma, W. Li, S. Zhang, Y. Hu, X. Shen, Study on the hydration and microstructure of Portland cement containing diethanol-isopropanolamine, Cem. Concr. Res. 67 (2015) 122-130.

DOI: 10.1016/j.cemconres.2014.09.002

[17] P. Prziwara, L.D. Hamilton, S. Breitung-Faes, A. Kwade, Evaluation of the capturing of dry fine particles between grinding media by drop-weight tests, Powder Technol. 363 (2020) 326–336.

DOI: 10.1016/j.powtec.2020.01.012

[18] Y. Chen, X. Lian, Z. Li, S. Zheng, Z. Wang, Effects of rotation speed and media density on particle size distribution and structure of ground calcium carbonate in a planetary ball mill, Adv. Powder Technol. 26 (2015) 505–510.

DOI: 10.1016/j.apt.2014.12.007

[19] B. Oksuzoglu, M. Ucurum, An experimental study on the ultra-fine grinding of gypsum ore in a dry ball mill, Powder Technol. 291 (2016) 186–192.

DOI: 10.1016/j.powtec.2015.12.027

[20] A. Pérez, A. Favier, K. Scrivener, F. Martirena, Influence Grinding Procedure, Limestone Content and PSD of Components on Properties of Clinker-Calcined Clay-Limestone Cements Produced by Intergrinding, Calcined Clays Sustain. Concr., Springer (2018) 358–365.

DOI: 10.1007/978-94-024-1207-9_58

[21] S. Zhenping, Influence of glycerin grinding aid on the compatibility between cement and polycarboxylate superplasticizer and its mechanism. Constr. Build. Mater. 233 (2020) 117104.

DOI: 10.1016/j.conbuildmat.2019.117104

[22] Y.L. Yaphary, Z. Yu, R.H.W. Lam, D. Lau, Effect of triethanolamine on cement hydration toward initial setting time, Constr. Build. Mater. 141 (2017) 94–103.

DOI: 10.1016/j.conbuildmat.2017.02.072