Influence of Particle Size Distribution of Limestone Powder on Fluidity and Harden Performance of the Cement Paste

Article Preview

Abstract:

Based on the particle size distribution test of 6 kinds of limestone powder, the fractal dimension of particle size distribution was calculated, and its influence on the surface area, median grain diameter and RR-B value was studied. In addition, 20% of the total mass of cement was replaced with limestone powder, and the effect of fractal dimension on fluidity of cement paste and 3, 7, 28d strength of mortar was investigated. The results showed that fractal dimension for limestone powder specific surface area has a good linear relationship with median grain diameter and RR-B value. The fractal dimension showed a quadratic function with the degree of the fluidity, and the maximum value was between 2.1-2.2. Mortar strength at the age of 3, 7, 28d value displayed a linear relationship with fractal dimension L4 had the greatest effect on strength. L1-L4 had more influence on the strength at the age of 3d and 7d than that of 28d. While the influence of L5-L7 on the strength at 3d, 7d and 28d was essentially similar to each other.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

324-331

Citation:

Online since:

June 2019

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2019 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Song Shaomin, Liu Juanhong, Xu Guoqiang. The Summaize and Study of the Application of Limestone Powder in Concrete,China concret,2009,(12):38-43.

Google Scholar

[2] Zhou, Yongxiang; Wang Yonghai; Wang Siya. The Characteristic of Limestone Powder and Its Effect on Performance of Concrete,Construction Technology ,2014,(09):23-27.

Google Scholar

[3] Zhou Lixia, Wang Qicai. Grey Incidence Analysis between Particle Size Distribution of Fly Ash and Its Activity, Bulleting of the Chinese Ceramic Society Society, 2011, (03):656-662.

Google Scholar

[4] YuKe, Zheng Zhongshan. Fractal characteristics of powder particle size distribution, Journal of materials research, 1995, 9(6): 539-542.

Google Scholar

[5] Zhu Ming, Hu Shuguang, He Zhenhua. J Wuhan Univ Technol (inChinese), 2008, 30(5): 28–31.

Google Scholar

[6] Ma Kunlin, Long Guangcheng, Xie Youjun, ZhuRong. Rheological Properties of Compound Pastes - Cement-Fly Ash-Limestone Powder, Journal of the Chinese Ceramic Society, 2013, (05): 582-587+596.

Google Scholar

[7] Chen Jian-xiong, LI Hong-fang, Chen Han-bin. Study of Super High Strength Concrete Containing super fine limestone powder and Titanium slag powder, Journal of Building Materials, 2005, (06):672-676.

Google Scholar