Microstructure characterisation and performance investigation of a rapid hardening emulsified asphalt seal mixture

2020 ◽  
pp. 1-16
Author(s):  
Zhilin Sun ◽  
Shuaijie Ma ◽  
Junhui Zhang ◽  
Fuan Sun
Keyword(s):  
Rapid Hardening ◽  
And Performance ◽  
Emulsified Asphalt

Experimental Studies and Microstructure Analysis for Rapid-Hardening Cement Emulsified Asphalt Mortar

2020 ◽  
Vol 146 (12) ◽  
pp. 04020130 ◽  
Author(s):  
Jinyan Shi ◽  
Baoju Liu ◽  
Jinxia Tan ◽  
Jingdan Dai ◽  
Jiazhuo Chen ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Microstructure Analysis ◽  
Rapid Hardening ◽  
Emulsified Asphalt ◽  
Asphalt Mortar

scholarly journals A Review on Cement Asphalt Emulsion Mortar Composites, Structural Development, and Performances

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3422
Author(s):  
Hussaini Abdullahi Umar ◽  
Xiaohui Zeng ◽  
Xuli Lan ◽  
Huasheng Zhu ◽  
Yirui Li ◽  
...  
Keyword(s):  
High Speed ◽  
Partial Replacement ◽  
Future Research ◽  
Structural Development ◽  
Asphalt Emulsion ◽  
Performance Properties ◽  
And Performance ◽  
Areas Of Interest ◽  
Emulsified Asphalt ◽  
Ca Mortar

The use of cement emulsified asphalt mortar (CA mortar) in the track structure of high-speed speed railways has been gaining considerations by many researchers due to its coupled merits of the strength of cement as well as the flexibility of asphalt material. The asphalt to cement ratio (A/C) and the compatibility among constituent materials are crucial to the properties of CA mortar. To improve the performance properties and application of CA mortar, it is imperative to have a broad understanding of the composition mechanisms and compatibility between constituent materials. This paper summarizes interesting research outcomes related to the composition and properties of CA mortar. The consumption of water by cement promotes the breakdown of emulsified asphalt, likewise, the adsorption of asphalt droplets on the surface of cement grains retards the hydration process of cement. An appropriate A/C is required for the cement hydration rate to match the speed of demulsification of asphalt emulsion. Depending on the type and properties for which the CA mortar is designed to possess, the A/C ranges from 0.2 to 0.6 for type 1 (CAM I), and 0.6 to 1.2 for type 2 (CAM II). This paper also discusses measures taken to improve performance properties, compatibility, the interaction between constituent materials of CA mortar, and the use of additives as a partial replacement of cement in CA mortar production. The current review also suggests areas of interest for future research studies. This paper is useful to those who aim to understand or study the composition mechanisms and performance properties of CA mortar.

Mixture Design and Performance Evaluation of Cold Asphalt Mixture Using Polymer Modified Emulsion

2014 ◽  
Vol 1065-1069 ◽  
pp. 760-765
Author(s):  
Shi Fa Xu ◽  
Zhi Chao Zhao ◽  
Ying Xu ◽  
Xiao Xiao Wang
Keyword(s):  
Asphalt Mixture ◽  
Technical Specification ◽  
Ambient Air ◽  
Social Benefit ◽  
Moisture Susceptibility ◽  
Road Pavement ◽  
And Performance ◽  
Emulsified Asphalt ◽  
Slurry Seal ◽  
Resistance Performance

Cold asphalt mixture can be handled at ambient air temperature and thus is regarded as energy saving, convenient for storage, transportation and construction, and can extend the construction season. However, it is commonly used in preventative maintenance of pavement as slurry seal and Micro-surfacing, not as structural layer due to its inferior performance to Hot Asphalt Mixture (HAM). Therefore, it will produce great economic and social benefit if a new cold mix and cold laid mixture can be developed for newly built road pavement application. Proportion design of AC-13 asphalt mixture using specially developed polymer modified emulsified is carried out and the performance of high temperature, moisture susceptibility, and low-temperature crack resistance are evaluated according to HAM technical specification. The results show that each performance of the AC-13 modified emulsified asphalt mixture can meet the specification requirements, and especially perform very well in rutting resistance performance.

scholarly journals Preparation and Performance Evaluation of Non-Sticky Wheel Emulsified Asphalt

2021 ◽  
Vol 2002 (1) ◽  
pp. 012004
Author(s):  
Jia Wang ◽  
Lu Zhang ◽  
Dongliang Zhang ◽  
Huali Lu
Keyword(s):  
Performance Evaluation ◽  
And Performance ◽  
Emulsified Asphalt
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