Study on the Early Strength of Cold Recycled Emulsified Asphalt Mixtures

2022 ◽  
Author(s):  
Jie Ji ◽  
Jinhui Li ◽  
Jiani Wang ◽  
Zhi Suo ◽  
Haimeng Li ◽  
...  
Keyword(s):  
Asphalt Mixtures ◽  
Early Strength ◽  
Emulsified Asphalt

A Laboratory Investigation into the Composite Bonding System of Cement-Emulsified Asphalt-Epoxy Resin

2011 ◽  
Vol 80-81 ◽  
pp. 379-384 ◽  
Author(s):  
Qing Jun Ding ◽  
Fan Shen ◽  
Zheng Sun ◽  
Shao Long Huang
Keyword(s):  
Epoxy Resin ◽  
Mechanical Tests ◽  
Asphalt Mixtures ◽  
Box Girder ◽  
Bonding System ◽  
Microscopic Feature ◽  
Girder Bridge ◽  
Steel Box Girder Bridge ◽  
Emulsified Asphalt ◽  
Insight Into

The objective of this article is to provide an insight into a new composite bonding system of Cement/emulsified-Asphalt/Epoxy resin (CAE) for steel box girder bridge pavement. The effect of epoxy resin on emulsified asphalt mixtures added with cement has been investigated in laboratory. Besides the mechanical properties of mixtures using CAE binders, the microscopic feature of CAE binders also have been measured. The results of mechanical tests indicate good performances for pavement, especially rutting deformation at high temperature and adhesive strength with steel blocks. Then, microscopic images show some interesting microscopic feature, which could be related to the development of performances.

scholarly journals Fatigue Performance of Different Thickness Structure Combinations of Hot Mix Asphalt and Cement Emulsified Asphalt Mixtures

Materials ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1145 ◽  
Author(s):  
Zhenjun Wang ◽  
Linlin Cai ◽  
Xiaofeng Wang ◽  
Chuang Xu ◽  
Bo Yang ◽  
...  
Keyword(s):  
Hot Mix Asphalt ◽  
Asphalt Mixtures ◽  
Fatigue Performance ◽  
Emulsified Asphalt ◽  
Different Thickness

Effect of Cement on Emulsified Asphalt Mixtures

2007 ◽  
Vol 16 (5) ◽  
pp. 578-583 ◽  
Author(s):  
Seref Oruc ◽  
Fazil Celik ◽  
M. Vefa Akpinar
Keyword(s):  
Asphalt Mixtures ◽  
Emulsified Asphalt

scholarly journals Strength Mechanism and Influence Factors for Cold Recycled Asphalt Mixture

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Tao Ma ◽  
Hao Wang ◽  
Yongli Zhao ◽  
Xiaoming Huang ◽  
Yuhui Pi
Keyword(s):  
Tensile Strength ◽  
Asphalt Mixture ◽  
Influence Factors ◽  
High Viscosity ◽  
Asphalt Mixtures ◽  
Key Factors ◽  
Recycled Asphalt ◽  
Factors Affecting ◽  
Surface Areas ◽  
Emulsified Asphalt

This study focused on the key factors affecting the tensile strength of cold recycled asphalt mixture with cement and emulsified asphalt. The specific surface areas and strength of RAP were analyzed. The interaction between the emulsified asphalt and cement was observed. Comprehensive laboratory testing was conducted to evaluate the influences of RAP, emulsified asphalt, and cement on the tensile strength of cold recycled asphalt mixture. It is found that although RAP is used as aggregates, its inner structure and strength are much different from real aggregates. The strength of RAP has decisive effect on the strength of cold recycled asphalt mixture. New aggregates and fine gradation design can help improve the bonding between RAP and binder. For emulsified asphalt, slow setting of asphalt can give sufficient time for cement to hydrate which is helpful for strength formation in the cold recycled asphalt mixture. The high viscosity of asphalt can improve the early strength of cold recycled asphalt mixture that is important for traffic opening in the field. Cement is an efficient additive to improve the strength of cold recycled asphalt mixtures by promoting demulsification of emulsified asphalt and producing cement hydrates. However, the cement content is limited by RAP.

scholarly journals Development of Cement-Emulsified Asphalt Mixtures for Pavement.

1995 ◽  
pp. 23-32
Author(s):  
Yorimasa Abe ◽  
Minoru Makita ◽  
Akio Tujino
Keyword(s):  
Asphalt Mixtures ◽  
Emulsified Asphalt

scholarly journals Effects of Cement and Emulsified Asphalt on Properties of Mastics and 100% Cold Recycled Asphalt Mixtures

Materials ◽  
2019 ◽  
Vol 12 (5) ◽  
pp. 754 ◽  
Author(s):  
Yanan Li ◽  
Yuchao Lyv ◽  
Liang Fan ◽  
Yuzhen Zhang
Keyword(s):  
Tensile Strength ◽  
Rheological Properties ◽  
Subsurface Layer ◽  
Temperature Stability ◽  
Asphalt Mixtures ◽  
Mineral Filler ◽  
High Temperature Stability ◽  
Recycled Asphalt ◽  
Technical Specifications ◽  
Emulsified Asphalt

Cold recycled asphalt mixtures (CRAM) are a cost-effective and environmentally-friendly way to reuse reclaimed asphalt pavement (RAP). This paper evaluates the rheological properties and microstructure of mineral filler-asphalt mastic, mineral filler-residue mastic, and cement-residue mastic. Then, based on the premise of using 100% RAP with a gradation that was determined experimentally, the effects of emulsified asphalt and cement on the porosity, indirect tensile strength, tensile strength ratio, dynamic stability, and mechanical properties of CRAM were evaluated. It was found that the rheological properties and cohesive coefficient of the cement-residue mastic varied differently to those of the first two types of mastic and the results show that the addition of cement can greatly improve the interfacial bonding between binders and fillers in the mastic, thereby improving the water damage resistance and high-temperature stability of CRAM. The relationships between cement content and the dynamic modulus and phase angle of CRAM are different to that for emulsified asphalt obviously. In addition, under certain conditions, the properties of CRAM can meet the requirements of relevant technical specifications for its application to subsurface layer of pavement. Hence, the use of 100% RAP in CRAM may be feasible.

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