The mutual effect and reaction mechanism of bitumen and de-icing salt solution

Zhang, Xuemei; Chen, Hao; Hoff, Inge

doi:10.1016/j.conbuildmat.2021.124213

Cited by 27 publications

(9 citation statements)

References 28 publications

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“…There may be two reasons, one is that the snow-melting salt particles are coarser than the limestone ore powder [ 9 , 16 ]. Snow-melting salt may improve the surface roughness of salt-storage asphalt [ 37 ]. Second, before testing BPN, the sprayed water may have caused the precipitation of surface salt, leaving micro-pores that make the surface of the salt-storage asphalt rougher.…”

Section: Resultsmentioning

confidence: 99%

Laboratory Study and Field Validation of the Performance of Salt-Storage Asphalt Mixtures

Cao

Liu

et al. 2022

Materials

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The traditional method of removing ice and snow on roads carries the risk of damaging roads and the environment. In this circumstance, the technology of salt-storage asphalt pavement has gradually attracted attention. However, snow-melting salts may also have an impact on asphalt mixture performance. To explore the effect of snow-melting salts on the mechanical and surface properties of salt-storage asphalt mixtures (SSAM), SSAMs were prepared with styrene–butadiene–styrene (SBS)-modified asphalt and high-elastic asphalt (HEA) as binders and snow-melting salts as fillers. The influence of the type of asphalt binder and the content of snow-melting salt on the performance of the SSAM was preliminarily investigated through laboratory tests. The results show that the high-temperature, low-temperature, and moisture resistance performance of the SBS group SSAM decreased by 9.8–15.1%, 1.6–12.3%, and 6.3–19.4%, respectively, compared with SBS00. The higher the amount of snow-melting salt, the greater the performance drop. The three mechanical properties of the HEA group containing high-elastic agent TPS are 11.3–19.7%, 4.2–12.3%, and 4.8–13.3% higher than that of the SBS group. Even when the content of snow-melting salt is 50% or 75%, the mechanical properties of the HEA group are better than that of SBS00 without snow-melting salt. Snow-melting salt has clear advantages in improving the anti-skid performance but decreases the anti-spalling performance. The surface properties of the HEA group were also better than that of the SBS group. Considering the mechanical properties and surface properties, the comprehensive performance of the HEA group is better than that of the SBS group, and HEA50 has the best comprehensive performance. In addition, the construction performance of the SSAM has also been verified, and the production of SSAM according to the hot mix asphalt can meet the specification requirements.

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Section: Resultsmentioning

confidence: 99%

Laboratory Study and Field Validation of the Performance of Salt-Storage Asphalt Mixtures

Cao

Liu

et al. 2022

Materials

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“…However, in cold weather during winter, road icing, snow accumulation, and other factors pose significant safety hazards and economic losses to road traffic [3]. Therefore, deicing salt is widely applied in road ice and snow removal, which works by melting ice and snow on the surface and preventing them from freezing again [4]. However, excessive use of deicing salt not only leads to environmental issues such as water pollution, land degradation, and climate change but also causes damage to road materials [5][6].…”

Section: дане дослідження присвячене вивченню впливу протиожеледних р...mentioning

confidence: 99%

Effect of deicing salt on air voids and permeability coefficient of asphalt mixture under dry-wet cycle

Ковальський,

Мінцзюнь

2024

СТМРБ

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Although the extensive use of deicing salt has solved the problem of road icing in winter and reduced traffic accidents, it has also had a significant impact on the asphalt mixture. Through dry-wet cycle test, this study investigated the change rule of air voids and permeability coefficient of asphalt mixture under the conditions of different gradation, different deicing salt solutions and different dry-wet cycle times, and analyzed the significant indicators of each factor's impact on air voids and permeability coefficient based on variance analysis. The results showed that the air voids and permeability coefficient of AC-13 and AC-16 asphalt mixtures increased to varying degrees after 0, 5, 10, 15, 20, 25, and 30 dry-wet cycles in 20% NaCl, 15% CH4N2O, and 20% CH2CH3OH solutions, and the air voids and permeability coefficient had a high correlation. Meanwhile, the variance analysis results indicated that gradation was the main factor affecting the air voids and permeability coefficient, followed by the dry-wet cycle times, and deicing salt solutions were the least significant.

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“…In general, road administrations strive to use resources for snow and ice removal as efficiently as possible. Plowing and deicing agents are both costly and time-consuming alternatives that require quick responses to sudden changes in road safety due to snow and ice accumulation [16]. In this regard, it is stated that de-icing agents can be roughly divided into inorganic salts, such as sodium chloride (NaCl), organic salts, such as magnesium calcium acetate (CaMg(CH 3 COO) 4 ) and organic compounds such as urea (CO(NH 2 ) 2 ) [17].…”

Section: Asr Formation In Hma Using De-icing Agentsmentioning

confidence: 99%

Conditions for the Formation of Alkali-Silica Reaction in Hot Mix Asphalt

Demirtürk

2023

Materials Engineering Research

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Alkali-Silica Reaction (ASR) is the well-known durability problem of concrete during its service life. There are many studies on the formation, significance, diagnosis, and prevention of ASR in concrete. Although ASR in concrete is the subject of many studies, there are very few studies on ASR formation in Hot Mix Asphalt (HMA). This is because the high alkali content in the pore solution of concrete, which is one of the main components of ASR, cannot exist in HMA. The conditions required for ASR formation in HMA are also unknown. Recently, a limited number of studies have focused on the use of de-icers and recycled concrete aggregates to investigate the formation of ASR in HMA. The formation of ASR in HMA should be considered as an attractive research topic and raise the question of which conditions lead or will lead to the formation of ASR. Indeed, the main purpose of this study is to investigate the conditions that may cause ASR in HMA, as opposed to the assumption that ASR in HMA cannot be fully observed. The study favours the method of reviewing existing studies and creating a combination of possible conditions for the formation of ASR in HMA.

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The mutual effect and reaction mechanism of bitumen and de-icing salt solution

Cited by 27 publications

References 28 publications

Laboratory Study and Field Validation of the Performance of Salt-Storage Asphalt Mixtures

Laboratory Study and Field Validation of the Performance of Salt-Storage Asphalt Mixtures

Effect of deicing salt on air voids and permeability coefficient of asphalt mixture under dry-wet cycle

Conditions for the Formation of Alkali-Silica Reaction in Hot Mix Asphalt

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