Experimental application of fully recycled asphalt concretes produced with chemical additives for patch pavement rehabilitation

Bruno, Marco; Tataranni, Piergiorgio; Sangiorgi, Cesare

doi:10.1016/j.conbuildmat.2022.129807

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…Karimi et al [ 12 ] discovered significant crack repair effects using polymer concrete repair materials as adhesives for all temperatures. Bruno et al [ 13 ] explored the potential of utilizing hot recycling technology for producing patch asphalt for repairing potholes and practical cut locations. Luiz et al [ 14 ] recommended verifying the bonding process before repairing high-strength concrete, ensuring compatibility with the concrete strength.…”

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%