Materials Reports 2021, Vol. 35 Issue (Z1): 258-263 |
INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
|
|
|
|
|
Research on Micro-macro Performance Correlation of Dust Suppression Asphalt Mixture Based on Gray Analysis |
SUO Zhi, TAN Yitian, XIE Congcong
|
School of Civil Engineering and Transportation, Beijing University of Civil Engineering and Architecture, Beijing 100044, China |
|
|
Abstract The dust suppression asphalt mixture can capture the particles in the air by using the water adsorbed on its surface, so as to achieve the purpose of dust suppression. Therefore, the hygroscopicity determines the dust suppression effect. In order to explore the primary and secondary factors affecting the moisture absorption performance of dust suppression asphalt mixture, natural zeolite powder, anhydrous calcium chloride and corncob powder were respectively mixed with different replacement rate of mineral powder. The weight gain of hygroscopic mass under different specific surface area, total pore volume, average pore diameter and surface free energy was obtained by physical adsorption instrument, contact angle meter and moisture absorption test. On this basis, through gray analysis, the influence degree of micro factors on macro hygroscopicity of dust suppression asphalt mixture was determined. The results show that: with the increase of the content of the replacement, the values of the four micro factors are increasing, and the weight gain of moisture absorption is also increased. Through the grey correlation calculation of hygroscopic mass gain, the correlation degree among specific surface area, total pore volume, average pore diameter and surface free energy is 0.891, 0.873, 0.646 and 0.759, respectively. It shows that the specific surface area has the greatest influence on the hygroscopic mass gain, the total pore volume and surface free energy take the second place, and the average pore size has the least influence on the hygroscopic mass gain.
|
Published: 16 July 2021
|
|
Fund:National Natural Science Foundation of China (52078024). |
About author:: Zhi Suo obtained his Ph.D. degree from Hong Kong Polytechnic University in 2010 and served at Beijing University of Civil Engineering and Architecture till now. He is currently an associate professor and master supervisor. He has published more than 20 journal papers, applied 15 invention national patents and 9 of them were authorized. His team's research interests are functional pavement materials, research and development of low-carbon environmental protection road materials, preventive maintenance management, and coupled field structure analysis. Responsible for completing more than 20 scientific research projects. He has won two first prizes of Ministerial Science and Technology Progress Award, one-second prize and two third prize of Science and Technology Progress Award, and won the first prize of Beijing Science and Technology Progress Award. |
|
|
1 李萍, 薛粟尹, 王胜利, 等. 环境科学, 2014(3), 1021. 2 Addo J Q and Sanders T G. In: MPC, Mountain Plains Consortium, North Dakota State University, Fargo, 1993, pp. 928. 3 Skorseth K. In: The Connection, South Dakota Local Transportation Assistance Program, South Dakota State University, Brookings, 2005, pp. 181. 4 Qing, Cao X L, X J P, et al.Fuel, 2012, 96(1), 314. 5 余晔, 夏敦胜, 陈雷, 等. 环境科学,2010, 31(1), 22. 6 艾封年, 张碧强. 环境科学与管理, 2018, 43(1), 122. 7 张莉.广东化工, 2017, 44(5), 110. 8 樊守彬, 杨涛, 王凯, 等. 环境科学,2019, 40(4), 1664. 9 王新民, 王文娟, 李杰,等. 环境科学与技术,2014(2), 588. 10 张奥, 薛忠军, 乐兴堃, 等. 北京建筑大学学报, 2018, 34(1),31. 11 罗亮, 张涛, 于静, 等.北京建筑大学学报, 2018, 34(1), 36. 12 陈诵英.吸附与催化, 河南科学技术出版社, 2001. 13 王金花.纺织科学研究, 2019(7), 72. 14 王婧娜, 胡岚, 张皋, 等. 火炸药学报, 2014(1), 86. 15 刘杰, 张一平. 上海纺织科技, 2017, 45(5), 11. 16 刘思峰.灰色系统理论及其应用(第五版), 北京科技出版社, 2010. 17 傅立.灰色系统理论及其应用, 科学技术文献出版社, 1992. |
|
|
|