Study on crack propagation behavior of bridge deck asphalt pavement

Si, Chundi; Cao, Hang; Fan, Taotao; Jia, Yanshun; Wang, Xinmiao; Li, Song; Xu, Zhongyin; Gu, Jianling

doi:10.1016/j.conbuildmat.2024.136136

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…Ren et al [ 16 ] used calcined coal gangue powder to partially replace cement and developed high-ductility, rapid-setting asphalt concrete overlay rapid repair materials. Si et al [ 17 ] conducted three-point bending tests to study the crack propagation process in BDAP, finding that the presence of longitudinal cracks and decreasing temperature accelerate the propagation of reflective cracks. The crack resistance performance of ARHM-20 is better than ARHM-13, so ARHM-20 mix should be used in the lower layer of BDAP to limit the propagation of reflective cracks to the upper layer.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance Study of Rapid Repair Epoxy Concrete for Bridge Deck Pavement

Sun,

Hao,

et al. 2024

Materials

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With the rapid development of bridge construction, the service life of bridges and traffic volume continue to increase, leading to the gradual appearance of diseases such as potholes and cracks in bridge deck pavements under repeated external loads. These issues severely impact the safety and service life of bridges. The repair of bridge deck potholes and cracks is crucial for ensuring the integrity and safety of bridge structures. Rapid repair materials designed for this purpose play a critical role in effectively and efficiently addressing these issues. In order to address the issues of pavement diseases, this study focuses on the rapid repair of epoxy concrete for bridge deck pavements and its performance is studied using experimental methods. Firstly, carbon black, rubber powder, and other materials were used to improve the elastic modulus and aging resistance of the epoxy concrete. Secondly, the addition of solid asphalt particles provided thermal sensitivity to the repair material. Finally, various properties of the rapid repair epoxy concrete for bridge deck pavements were tested through experiments including compressive strength testing, elastic modulus measurement, thermal sensitivity testing, and anti-UV aging testing. The experimental results show that adding carbon black and rubber powder reduces the elastic modulus of epoxy concrete by 25% compared to normal epoxy concrete, while increasing its aging resistance by 1.8%. The inclusion of solid asphalt particles provided thermal sensitivity to the repair material, contributing to better stress coordination between the repair material and the original pavement material under different temperature conditions. The epoxy concrete has early strength, toughness, and anti-aging properties, making it suitable for rapid repair of bridge deck pavement.

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Section: Introductionmentioning

confidence: 99%

Preparation and Performance Study of Rapid Repair Epoxy Concrete for Bridge Deck Pavement

Sun,

Hao,

et al. 2024

Materials

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Influence of crack configurations of asphalt mortar on the loading response characteristics of cracks under low-temperature conditions

Du,

2024

Engineering Fracture Mechanics

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Evaluation of Interlayer Reinforcement Effectiveness in Road Pavement Rehabilitation Using FEM Modeling and Fracture Mechanics Analysis

Antoniazzi,

Ravizzoni,

Schiavone

et al. 2024

Buildings

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In this paper, the effectiveness of reinforcements for flexible pavements is evaluated through an analysis of reflective cracking. Different stiffness and thickness reinforcements are considered for the rehabilitation of an already cracked pavement. The effect of the reinforcement is assessed from two different perspectives: (i) the ability to reduce stresses in the rehabilitated pavement layers, and (ii) the capacity to mitigate the crack propagation from deeper layers. A finite element model (FEM) is adopted to study the stress and strain state of the pavement layers. The pavement model has been properly validated, transitioning from a simply supported beam scheme to an elastic multilayer model. In addition, to represent crack propagation, fracture evolution is analyzed using Linear Elastic Fracture Mechanics (LEFMs) and Paris’ law. The effect of different reinforcements on the pavement is then simulated. The results show that the reinforcement performance is strictly dependent on the interlayer thickness and stiffness. In particular, high stiffness reinforcements (geomembranes) show increasing effectiveness with stiffness, both in terms of reflective cracking and stress reduction. Conversely, low stiffness reinforcements (SAMIs) show a variable trend with the stiffness modulus. In fact, extremely low stiffness is effective in slowing down crack propagation but is detrimental to the wearing course’s stress condition. However, as the stiffness increases, the likelihood of cracking in the wearing course decreases, though only a small beneficial effect is registered for crack propagation in the base layer.

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Study on crack propagation behavior of bridge deck asphalt pavement

Cited by 3 publications

References 33 publications

Preparation and Performance Study of Rapid Repair Epoxy Concrete for Bridge Deck Pavement

Preparation and Performance Study of Rapid Repair Epoxy Concrete for Bridge Deck Pavement

Influence of crack configurations of asphalt mortar on the loading response characteristics of cracks under low-temperature conditions

Evaluation of Interlayer Reinforcement Effectiveness in Road Pavement Rehabilitation Using FEM Modeling and Fracture Mechanics Analysis

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