Stability Evaluation Indexes of Emulsified Asphalt for Cold Regeneration

NAVIGATE

Table of Contents

STATISTICS

Viewed2788

Downloads2212

Stability Evaluation Indexes of Emulsified Asphalt for Cold Regeneration

[HTML] PDF下载 (2212)

[1]WANG Decai,HAO Peiwen,SUN Yang,et al.Stability Evaluation Indexes of Emulsified Asphalt for Cold Regeneration[J].Journal of Zhengzhou University (Engineering Science),2021,42(01):82-88.[doi:10.13705/j.issn.1671-6833.2021.01.011]

Copy

Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 42卷 Number of periods: 2021 01 Page number: 82-88 Column: Public date: 2021-03-14

Title:: Stability Evaluation Indexes of Emulsified Asphalt for Cold Regeneration

Author(s):: WANG Decai1; 2; HAO Peiwen3; SUN Yang2; LI Ruixia2; 1.School of Civil Engineering and Communication,North China University of Water Resources and Electric Power, Zhengzhou 450045，China; 2.School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou 450001, China; 3.Key Laboratory of Highway Engineering in Special Region of Ministry of Education，Chang′an University，Xi′an 710064，China

Keywords:: cold regeneration; emulsified asphalt; stability; particle size; Zeta potential; interfacial tension; grey entropy correlation analysis

CLC:: U414

DOI:: 10.13705/j.issn.1671-6833.2021.01.011

Abstract:: Aiming at the stability of emulsified asphalt for cold regeneration, laboratory tests were carried out on the types and dosage of emulsifier, particle size, Zeta potential and interfacial tension of SBR modified emulsified asphalt, and the index requirements for characterizing the stability of emulsified asphalt were put forward. The results showed that the particle size and distribution of the emulsified asphalt prepared by different emulsifier types were different. With the increase of the amount of emulsifier, the average particle size, D90 and ununiformity coefficient regeneration and the stability increased. The type and amount of emulsifier had a significant effect on the Zeta potential and interfacial tension. As the amount of emulsifier increased, the Zeta potential increased significantly and the interfacial tension decreased. When the amount reached a certain level, the emulsion stability tended to be stable. The particle size and distribution of SBR modified emulsified asphalt were basically the same as those before unmodified, but the Zeta potential increased, and the storage stability slightly reduced. The grey entropy correlation analysis showed that the interfacial tension and particle size ununiformity coefficient had the best correlation with the stability of emulsified asphalt, followed by D90 and average particle size, and the Zeta potential had the smallest. It was recommended that when D90≤7 μm, average particle size ≤4 μm, ununiformity coefficient ≤4, Zeta potential>28 mV, interfacial tension <3.3 mN/m, it could meet the stability requirements of the current specification.

References:: [1] 黄煜镔,吕伟民,汪宏涛.沥青路面冷再生技术的现状及其发展[J].四川建筑科学研究,2007，33(4):177-179.
[2] WANG Z J, SHU X, RUTHERFORD T, et al. Effects of asphalt emulsion on properties of fresh cement emulsified asphalt mortar[J].Construction and building materials, 2015, 75:25-30.
[3] 肖晶晶,郑南翔,宋哲玉.乳化剂对改性乳化沥青性能影响及机理研究[J].郑州大学学报(工学版),2008，29(3):5-9.
[4] 谢利宝,杨建新,凌晨.浅谈乳化沥青的储存稳定性[J].公路交通科技,2006,2(9):86-88.
[5] MERCADO R，FUENTES L. Measure of asphalt emulsions stability by oscillatory rheology[J].Construction and building materials, 2017, 155: 838-845.
[6] LIU Z G, ZONG L, ZHAO L L, et al. Preparation and storage stability of asphalt emulsions made from modified lignin cationic asphalt emulsifiers[J]. Applied mechanics and materials, 2013,357-360:781-785.
[7] WANG F Z, LIU Y P, HU S G. Effect of early cement hydration on the chemical stability of asphalt emulsion[J]. Construction and building materials, 2013, 42:146-151.
[8] 赵品晖,范维玉,张凌波,等.乳化沥青粒度与稳定性的影响因素及其相关性考察[J].石油炼制与化工,2013,44(7):12-16.
[9] 赵品晖,范维玉,董爽,等.阴离子乳化沥青稳定性与油水界面张力的关系[J].中国石油大学学报(自然科学版),2012,36(3):175-179.
[10] NOSKOV B A, LOGLIO G, MILLER R. Dilational surface visco-elasticity of polyelectrolyte/surfactant solutions: formation of heterogeneous adsorption layers[J]. Advances in colloid and interface science, 2011, 168(1/2):179-197.
[11] 裴强,杜素军,庞瑾瑜.乳化沥青的界面黏弹性及Zeta电位研究[J].重庆交通大学学报(自然科学版),2017,36(1):42-45，76.
[12] 中华人民共和国交通运输部.公路沥青路面再生技术规范:JTG F41—2008[S].北京：人民交通出版社，2008.
[13] 王伟明,吴旷怀,王凤华,等.新型SBR复合改性乳化沥青研制与性能研究[J].中外公路,2014,34(5):235-240.
[14] 李忠玉,刘栓,陈小雪,等.乳化沥青颗粒粒度分析试验研究[J].石油沥青,2015,29(3):14-17.
[15] 王红,王翠红,王子军.乳化剂体系对乳化沥青储存稳定性影响研究[J].石油沥青,2008，22(4):10-13.
[16] 陈宪宏,孙立夫.SBR改性乳化沥青的研究[J].湖南科技学院学报,2007，28(4):110-112.
[17] 王长安,吴育良,许凯,等.影响乳化沥青稳定性的主要因素[J].新型建筑材料,2005，32(1):52-54.
[18] 张岐山,郭喜江,邓聚龙.灰关联熵分析方法[J].系统工程理论与实践,1996，16(8):8-11.[19] 邓聚龙.灰色系统理论教程[M]. 武汉：华中理工大学出版社, 1990.

Similar References:

Memo

Last Update: 2021-03-15