Research on deicing performance of high-elastic/salt-storage asphalt mixture containing rubber particle and self-developed salt-storage filler

IF 4.4 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Polymer Materials Pub Date : 2024-09-17 DOI:10.1016/j.conbuildmat.2024.138303

Guilian Zou , Qi Chen , Youqing Jiao , Yan Yuan , Yuan Zhang , Jiangmiao Yu

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Abstract

Snow and ice on the pavement surfaces in winter seriously threaten the traffic safety. This study prepared high-elastic/salt-storage (HESS) asphalt mixtures containing rubber particles (RP) and self-developed salt-storage fillers to improve deicing performance in various aspects. Specifically, the RP was incorporated into the asphalt mixture by replacing 1 %, 2 %, and 3 % of fine aggregate by mass and the self-developed salt-storage filler was incorporated into the asphalt mixture to replace 25 %, 50 %, and 75 % of the mineral filler by equal volume. Hydrated lime was used as a mineral filler to enhance the asphalt mixtures’ water damage resistance. The pavement performance of HESS asphalt mixtures was first studied. The pull-out and fall ball impact tests were designed to investigate the composite deicing effect of RP and salt-storage filler on the asphalt mixtures. A self-designed rainfall simulation test was used to assess the long-term deicing performance of HESS asphalt mixtures. Results showed that the incorporation of RP improves the high-temperature stability and low-temperature crack resistance of the mixtures, but negatively affects their water damage resistance. The RP content should not exceed 3 % to guarantee water damage resistance. Due to combining effects RP and salt-storage fillers, the deicing performance of HESS asphalt mixtures has been improved by 15.9 % and 10.6 % as compared to the addition of RP and salt-storage fillers separately. It is recommended to replace the fine aggregates with the RP at content of 1.5–3 % by mass and 60–75 % mineral filler with the salt-storage filler by volume.

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含橡胶颗粒和自主研发的储盐填料的高弹性/储盐沥青混合料的除冰性能研究

冬季路面上的冰雪严重威胁交通安全。本研究制备了含有橡胶颗粒（RP）和自主研发的储盐填料的高弹性/储盐（HESS）沥青混合料，以从多方面改善除冰性能。具体而言，在沥青混合料中加入橡胶颗粒，按质量取代 1%、2% 和 3% 的细集料；在沥青混合料中加入自行开发的储盐填料，按等体积取代 25%、50% 和 75% 的矿物填料。熟石灰被用作矿物填料，以增强沥青混合料的抗水损害能力。首先对 HESS 沥青混合料的路面性能进行了研究。设计了拉出试验和落球冲击试验，以研究 RP 和储盐填料对沥青混合料的复合除冰效果。采用自行设计的降雨模拟试验来评估 HESS 沥青混合料的长期除冰性能。结果表明，掺入 RP 可提高混合料的高温稳定性和低温抗裂性，但会对混合料的抗水损害性产生负面影响。为保证耐水损害性，可再热塑性塑料的含量不应超过 3%。与单独添加 RP 和储盐填料相比，由于结合了 RP 和储盐填料的效果，HESS 沥青混合料的除冰性能分别提高了 15.9% 和 10.6%。建议用 RP 取代细集料，RP 的质量含量为 1.5-3%，用储盐填料取代 60-75% 的矿物填料。

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来源期刊

ACS Applied Polymer Materials Multiple-

CiteScore

7.20

自引率

6.00%

发文量

810

期刊介绍： ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.