Investigation on segregation characteristics of thermosetting epoxy asphalt mixture during the compaction

2022 ◽  
Vol 320 ◽  
pp. 126256
Author(s):  
Yang Liu ◽  
Zhendong Qian ◽  
Yuming Yang ◽  
Minghui Gong ◽  
Qibo Huang ◽  
...  
Keyword(s):  
Asphalt Mixture ◽  
Epoxy Asphalt ◽  
Thermosetting Epoxy

scholarly journals Evaluation of the Effects of Filler Fineness on the Properties of an Epoxy Asphalt Mixture

Materials ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2003
Author(s):  
Wei Xu ◽  
Jintao Wei ◽  
Zhengxiong Chen ◽  
Feng Wang ◽  
Jian Zhao
Keyword(s):  
Particle Size ◽  
Average Particle Size ◽  
Asphalt Mixture ◽  
Average Particle ◽  
Fine Dust ◽  
Bonding Structure ◽  
Epoxy Asphalt ◽  
Mineral Powder ◽  
Marshall Stability ◽  
Mixture Sample

The type and fineness of a filler significantly affect the performance of an asphalt mixture. There is a lack of specific research on the effects of filler fineness and dust from aggregates on the properties of epoxy asphalt (EA) mixtures. The effects of aggregate dust and mineral powder on the properties of an EA mixture were evaluated. These filler were tested to determine their fineness, specific surface area and mineral composition. The effects of these fillers on the EA mastic sample and mixture were evaluated. The morphology of the EA mastic samples was analyzed using scanning electron microscopy (SEM). The effects of the fillers on the Marshall stability, tensile strength and fatigue performance of the EA mixture were evaluated. The dust from the aggregates exhibited an even particle size distribution, and its average particle size was approximately 20% of that of the mineral powder. The SEM microanalysis showed that the EA mastic sample containing relatively fine dust formed a tight and dense interfacial bonding structure with the aggregate. The EA mixture sample containing filler composed of dust from aggregate had a significantly higher strength and longer fatigue life than that of the EA sample containing filler composed of mineral powder.

Experimental Study on Epoxy Asphalt Binder

2010 ◽  
Vol 168-170 ◽  
pp. 916-919
Author(s):  
Ke Fei Liu
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Asphalt Binder ◽  
Physical And Mechanical Properties ◽  
Technical Requirement ◽  
Basic Requirement ◽  
Application Process ◽  
Epoxy Asphalt ◽  
Steel Deck ◽  
Thermosetting Epoxy

Epoxy asphalt has fundamentally changed the thermoplastic of asphalt and endowed the asphalt with excellent physical and mechanical properties. This paper analyses the developing technical requirement of thermosetting epoxy asphalt and points out its main problems during preparation and application process. Aiming at the steel deck paving characteristics, the author has independently developed epoxy asphalt binder and tested its performances, the results have showed that this binder can meet the basic requirement of various pavings, and its further research are in process.

Mechanical Properties on Thermosetting Epoxy Asphalt Waterproof Bond Material for Cement Concrete Pavement Based on Composite Structures

2011 ◽  
Vol 99-100 ◽  
pp. 948-954
Author(s):  
Zhen Dong Qian ◽  
Ya Qi Wang ◽  
Xin Song
Keyword(s):  
Mechanical Properties ◽  
Composite Structures ◽  
Concrete Pavement ◽  
Cement Concrete ◽  
Epoxy Asphalt ◽  
Fatigue Durability ◽  
Bond Layer ◽  
Bending Fatigue Test ◽  
Cement Concrete Pavement ◽  
Thermosetting Epoxy

One of the important methods to ensure the durability of cement concrete pavement is utilizing excellent waterproof bond layer. Firstly, based on the mechanism of strength of the thermosetting epoxy asphalt waterproof bond material (EAWBM), the construction temperature which is strictly controlled above 130°C, is insured. Then the amount, the curing time and temperature of the thermosetting epoxy asphalt, are studied as the influencing factors of mechanical properties based on the composite structures of the concrete cement pavement. Finally, through the three-point bending fatigue test of composite structures, the fatigue durability of different waterproof bond material is compared. The results show that: the optimal amount of the thermosetting epoxy asphalt is 0.60~0.80L/m2; the asphalt concrete paving must be carried out within 24~32h after the EAWBM is constructed; the mechanical properties of the material decreases as the increasing test temperature; the waterproof bond materials have greater impact on the fatigue durability for the composite structures of the concrete cement pavement compared with the paving material, and the fatigue durability of the EAWBM is the optimal selection for cement concrete pavement.

Performance evaluation of a lightweight epoxy asphalt mixture for bascule bridge pavements

2011 ◽  
Vol 25 (7) ◽  
pp. 3117-3122 ◽  
Author(s):  
Zhendong Qian ◽  
Leilei Chen ◽  
Chenlong Jiang ◽  
Sang Luo
Keyword(s):  
Performance Evaluation ◽  
Asphalt Mixture ◽  
Epoxy Asphalt
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