Performance Evaluation of a Novel High Durability Epoxy Asphalt Concrete for Bridge Deck Pavements

2014 ◽  
Vol 488-489 ◽  
pp. 550-553
Author(s):  
Xing Song Cao ◽  
Dong Wei Cao ◽  
Shi Xiong Liu ◽  
Xio Qiang Yang ◽  
Lin Lan
Keyword(s):  
Asphalt Concrete ◽  
Bridge Deck ◽  
Asphalt Binder ◽  
Laboratory Evaluation ◽  
Suitable Material ◽  
Long Span ◽  
Epoxy Asphalt ◽  
High Durability ◽  
Specimen Test ◽  
Epoxy Asphalt Concrete

A novel high durability epoxy asphalt concrete for bridge deck pavements is introduced in this paper, including the manufacturing process of epoxy asphalt binder and laboratory evaluation for this material. Various laboratory tests were conducted to evaluate the pavement performance of the materials, such as fatigue test, wheel tracking test, moisture susceptibility test and thermal stress restrained specimen test. Test results show that epoxy asphalt concrete has 20137 cycles/mm dynamic stability at 70°C, and-28.4 °C fracture temperature. The fatigue equations of epoxy asphalt concrete at different temperatures were obtained. Findings from the research indicate that the epoxy asphalt concrete is a suitable material for the pavement of long-span steel bridges in China due to its profound performance.

scholarly journals Development and Laboratory Evaluation of a Cold Mix High-Early-Strength Epoxy Asphalt Concrete for Steel Bridge Deck Pavements

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4555
Author(s):  
Yang Liu ◽  
Zhendong Qian ◽  
Yongning Wang ◽  
Yongchao Xue
Keyword(s):  
Asphalt Concrete ◽  
Bridge Deck ◽  
Laboratory Evaluation ◽  
Steel Bridge ◽  
Epoxy Asphalt ◽  
Curing Period ◽  
Early Strength ◽  
Optimum Formula ◽  
Epoxy Asphalt Concrete ◽  
Bridge Deck Pavement

Epoxy asphalt concrete (EAC) is a widely used steel bridge deck pavement (SBDP) material. Due to the curing reaction, the EAC-based material needs a long curing period before opening to traffic, which in an inconvenience in the construction of SBDP. This study developed a cold mix high-early-strength (CHES) epoxy asphalt through the design of a compatilizer and curing agent system. The optimum formula of CHES epoxy asphalt was determined through a series of laboratory tests. By comparison of the performances of CHES EAC and some conventional EACs for SBDP, it was found that the developed CHES epoxy asphalt can significantly reduce the curing period, and the pavement performance of CHES EAC is, overall, excellent for application in SBDP. In addition, the sufficient allowable construction duration shows that the CHES EAC has a good construction workability.

Japan TAF Epoxy Asphalt Concrete Design and Steel Bridge Deck Pavement Construction Technology

2013 ◽  
Vol 330 ◽  
pp. 905-910 ◽  
Author(s):  
Cheng Zhu
Keyword(s):  
Asphalt Concrete ◽  
Bridge Deck ◽  
Steel Bridge ◽  
Construction Technology ◽  
Pavement Materials ◽  
Construction Methods ◽  
Epoxy Asphalt ◽  
Pavement Construction ◽  
Epoxy Asphalt Concrete ◽  
Bridge Deck Pavement

The TAF epoxy asphalt concrete (EAC) is a new steel bridge deck pavement materials , the application of the TAF EAC is increasing in China. But the research for some of it's performance and construction technology is not throughly, which results in the useful life of the bridge deck paving materials greatly reducing. This paper focuses on the design and construction methods of the Japanese TAF epoxy asphalt concrete, and take the Humen bridge steel bridge deck pavement repair project in December 2011 for example.

scholarly journals Integrated Design of Structure and Material of Epoxy Asphalt Mixture Used in Steel Bridge Deck Pavement

Buildings ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 9
Author(s):  
Wen Nie ◽  
Duanyi Wang ◽  
Yangguang Sun ◽  
Wei Xu ◽  
Xiaoquan Xiao
Keyword(s):  
Asphalt Concrete ◽  
Bridge Deck ◽  
Asphalt Mixture ◽  
Strain Level ◽  
Steel Bridge ◽  
Plate Interface ◽  
Bonding Performance ◽  
Epoxy Asphalt ◽  
Epoxy Asphalt Concrete ◽  
Bridge Deck Pavement

To comprehensively investigate the integrated structural and material design of the epoxy asphalt mixture used in steel bridge deck pavement, the following works have been conducted: 1. The strain level of steel bridge deck pavement was calculated; 2. The ultimate strain level of fatigue endurance for epoxy asphalt concrete was measured; 3. The effect of water tightness of epoxy asphalt mixture on the bonding performance of steel plate interface was tested. 4. For better performance evaluation, quantitative analysis of the anti-skid performance of epoxy asphalt mixture was carried out by testing the structure depth using a laser texture tester. Results show the following findings: 1. The fatigue endurance limit strain level of epoxy asphalt mixture (600 με) was higher than that of the steel bridge deck pavement (<300 με), indicating that the use of epoxy asphalt concrete has better flexibility and can achieve a longer service life in theory; 2. The epoxy asphalt concrete has significant water tightness to protect the steel plate interface from corrosion and ensure good bonding performance; 3. The porosity of epoxy asphalt mixture used in steel bridge deck paving should be controlled within 3%; 4. In terms of anti-skid performance of bridge deck pavement, the FAC-10 graded epoxy asphalt mixture is recommended when compared with EA-10C.

A Double-Parameter K~J Fracture Criterion for Epoxy Asphalt Concrete

2010 ◽  
Vol 97-101 ◽  
pp. 809-813
Author(s):  
Zhen Dong Qian ◽  
Sang Luo ◽  
Chun Hong Chen ◽  
Zhi Li ◽  
Lei Lei Chen
Keyword(s):  
Asphalt Concrete ◽  
Fracture Criterion ◽  
Fracture Property ◽  
Three Point Bending ◽  
Long Span ◽  
Epoxy Asphalt ◽  
Influence Of Temperature On ◽  
Cracking Pattern ◽  
Two Parameters ◽  
Epoxy Asphalt Concrete

The epoxy asphalt concrete is extensively used as paving material for long-span steel bridges in China. But mode I crack, which is most prominent cracking pattern for the pavement, often appears on the pavement surface. Therefore, the stress intensity factor K and J-integral were adopted to analyze fracture properties of single-edge notched three-point bending beams. The influence of temperature on the two parameters was studied. The analyses indicate epoxy asphalt concrete exhibits ductile fracture property at 5~25°C and brittle fracture property at -15~5°C. It is also found that fracture property of epoxy asphalt concrete is better than other kinds of bituminous concrete. Finally, a double-parameter K~J fracture criterion is founded for the epoxy asphalt concrete and provides basis for anti-cracking design and repair of cracks of the pavement.

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