Assessment of automatic induction self-healing treatment applied to steel deck asphalt pavement

Li, Kai; Xu, Pengcheng; Wang, Fang; You, Lihua; Zhang, Xuancheng; Fu, Chaoliang

doi:10.1016/j.autcon.2021.104011

Cited by 36 publications

(11 citation statements)

References 56 publications

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“…One of the areas of human activity involved in the increase of CO 2 emission is the concrete industry. Despite the efforts of several researchers, such as carbon-friendly design and extending the lifecycle of structures to reduce CO 2 emissions [ 1 , 2 ], there is no doubt that concrete will remain a basic construction material for a long time. Unfortunately, its production focused on high quality imposes a heavy burden on the environment.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Structural Concrete Containing Recycled Aggregates and Powder from Construction and Demolition Waste

2022

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For complete utilization of construction and demolition (C&D) waste, an investigation of all size fractions of C&D waste generated during the recycling process should be conducted. In this work, the effects of three recycled concrete materials with different sizes (recycled coarse aggregate (RCA) with a size of 4.75–25 mm, recycled fine aggregate (RFA) of 0.15–4.75 mm, and recycled powder (RP) smaller than 0.15 mm) produced from concrete waste on the fresh and hardened mechanical properties of concrete were evaluated. The replacement ratios of natural coarse and fine aggregates by RCA and RFA were 30, 60, and 100%, and those of ordinary Portland cement for RP were 10, 20, and 30%. The results showed that the concrete properties deteriorated with increasing replacement ratio regardless of the type of recycled materials. The properties were reduced in the order of the use of RFA, RCA, and the simultaneous use of RCA and RFA. In addition, concrete with 30% RP showed lower mechanical strength than concrete with 100% RCA and 100% RFA. However, all concretes could be applicable for structural purposes under different environmental exposure conditions. In particular, concretes with 10% RP and 20% RP showed better cost-benefits compared to natural aggregate concrete with 100% ordinary Portland cement. These promising findings provide valuable initiatives for the effective and complete recycling of C&D waste.

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Section: Introductionmentioning

confidence: 99%

An Experimental Study on Structural Concrete Containing Recycled Aggregates and Powder from Construction and Demolition Waste

2022

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“…Sinopec supplied a bitumen sample with a 80/100 penetration grade. N, N-polyvinylidene fluoride (PVDF, 6010#; purity of >99.5%; density of 1.75 g/cm 3 ) was provided by Tianjin Sinogo Co., Ltd., Tianjin Chemical Company, Tianjing, China. The oily rejuvenator (XT-1) was supplied by Tuoxin Chemical Company (Changzhou, China).…”

Section: Methodsmentioning

confidence: 99%

“…Through a detailed analysis of the mechanism of self-healing of a microvascular/ asphalt composite, it can be seen that the SHC value of asphalt is affected by two factors, and its functional expression can be written as follows (3).…”

Section: Preliminary Theoretical Analysis and Future Workmentioning

confidence: 99%

Investigation of Asphalt Self-Healing Capability Using Microvasculars Containing Rejuvenator: Effects of Microvascular Content, Self-Healing Time and Temperature

Sun

Wang

et al. 2023

Materials

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The oily rejuvenator acted as the healing agent in microvasculars. A tensile test was designed to evaluate the self-healing efficiency of asphalt affected by microvascular number, self-healing time and temperature. It was found that the healing agent was slowly released through the microporous channels on the inner shell of the microvascular. The release modes of the agent can work together to improve the self-healing efficiency. The self-healing values of the three samples (asphalt, asphalt/microvasculars without rejuvenator and asphalt/microvasculars with rejuvenator) are 51%, 53%, and 71%. The self-healing capability of the asphalt samples with a healing agent is much greater than that of the other two without a healing agent at the same time. More microvascular rupture at the asphalt sample interface led to a higher self-healing efficiency. The self-healing efficiency values of the three samples (asphalt samples with one, two, and three microvasculars) are 52%, 67%, and 73%, respectively. The self-healing efficiency of the same sample increased during 1–3 days from 26% to 88% in one self-healing cycle. The self-healing efficiency value indicated that increasing the temperature improved each sample’s self-healing efficiency. The above trend of change also applies to the second self-healing process. A higher temperature reduces the resistance to molecular motion and accelerates the molecular action of bitumen and the healing agent. The time–temperature equivalence principle can be fully applied to comprehend asphalt self-healing.

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“…However, the increase in traffic volume and vehicle axle load has led to the increase in road rutting, congestion, and other diseases, which has seriously damaged the service performance and service life of China's highway [1]. It is the transportation industry current that promotes the application of new technologies to improve the quality, durability, and environmental protection of asphalt roads [2][3][4]. On one hand, high modulus asphalt has excellent mechanical properties, high-temperature properties, and fatigue resistance.…”

Section: Introductionmentioning

confidence: 99%

Classification of Performance Grades of High Modulus Asphalt and Its Mixture: Taking China as an Example

Zhou

Duan

Gao³

et al. 2022

Advances in Materials Science and Engineering

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With the increase in traffic volume and axle load, the requirement of road quality is continuously improving, and high modulus asphalt has attracted the attention of researchers due to its excellent road service performance and economic benefits. In order to further improve the durability and use quality of Chinese roads, realize the scientific evaluation of the performance of high modulus asphalt and its mixture, and further promote the development of high modulus asphalt technology in China, the performance indexes of high modulus asphalt and its mixture in China were comprehensively investigated. The differences in high- and low-temperature performance of matrix asphalt, basic modified high modulus asphalt, and composite modified high modulus asphalt were compared and evaluated. Based on the results of mathematical statistics and the relevant specifications of high modulus asphalt in China, the performance grades of high modulus asphalt and its mixture were proposed. The results showed that compared with the basic asphalt, the softening points of the basic modified high modulus asphalt and the composite modified high modulus asphalt were increased by 18.76% and 82.89%, respectively, and the rutting factors were increased by 2 and 9 times, respectively, but the improvement effect of the low-temperature performance of the high modulus asphalt was not obvious. Based on the data statistics node and relevant Chinese regulations, high modulus asphalt and its mixtures were divided into four grades: excellent, good, fair, and poor, aiming to provide scientific suggestions for the wide application of high modulus asphalt.

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Assessment of automatic induction self-healing treatment applied to steel deck asphalt pavement

Cited by 36 publications

References 56 publications

An Experimental Study on Structural Concrete Containing Recycled Aggregates and Powder from Construction and Demolition Waste

An Experimental Study on Structural Concrete Containing Recycled Aggregates and Powder from Construction and Demolition Waste

Investigation of Asphalt Self-Healing Capability Using Microvasculars Containing Rejuvenator: Effects of Microvascular Content, Self-Healing Time and Temperature

Classification of Performance Grades of High Modulus Asphalt and Its Mixture: Taking China as an Example

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