DETERMINATION OF THE COMPOSITION OF ASPHALT CONCRETE MIXTURES BASED ON EPOXY COMPONENTS FOR THEIR APPLICATION AS THIN-LAYER COATINGS OF ROAD BRIDGES

None Onishchenko Arthur, None Zelenovsky Vladimir
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 Ensuring increased track resistance, strength and crack resistance of pavements on road bridges today is one of the most important problems facing scientists and road workers in Ukraine. An urgent task is to improve the performance of these coatings in order to extend their service life and minimize the frequency of repair work, which, especially on bridges, cause great difficulties and require significant additional costs.
 There is no doubt that when using epoxy asphalt concrete as a thin-layer pavement, we get a strong, flexible surface, resistant to cracking and rutting. However, this is not yet a sufficiently researched material for its possible wide application, as it requires a special approach to the establishment of the composition and technology of its preparation.
 The application of a thin-layer coating on an orthotropic or reinforced concrete slab of the carriageway of the bridge made of epoxy asphalt-concrete mixture requires special attention in establishing the optimal selection of its composition and cooking technology. Particular attention should be paid to ensure the required viability of the epoxy asphalt mixture, the use of the desired hardener, which affects its properties, determining the required number of thermosetting modifiers, determining the duration of curing depending on temperature.","PeriodicalId":19855,"journal":{"name":"Pharmacy World & Science","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pharmacy World & Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31435/rsglobal_ws/30092023/8058","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract

This paper presents the results of the analysis of world and domestic experience, theoretical and practical research to assess the impact of thermosetting additives on the main indicators of bitumen and physical and mechanical properties of asphalt concrete. Ensuring increased track resistance, strength and crack resistance of pavements on road bridges today is one of the most important problems facing scientists and road workers in Ukraine. An urgent task is to improve the performance of these coatings in order to extend their service life and minimize the frequency of repair work, which, especially on bridges, cause great difficulties and require significant additional costs. There is no doubt that when using epoxy asphalt concrete as a thin-layer pavement, we get a strong, flexible surface, resistant to cracking and rutting. However, this is not yet a sufficiently researched material for its possible wide application, as it requires a special approach to the establishment of the composition and technology of its preparation. The application of a thin-layer coating on an orthotropic or reinforced concrete slab of the carriageway of the bridge made of epoxy asphalt-concrete mixture requires special attention in establishing the optimal selection of its composition and cooking technology. Particular attention should be paid to ensure the required viability of the epoxy asphalt mixture, the use of the desired hardener, which affects its properties, determining the required number of thermosetting modifiers, determining the duration of curing depending on temperature.
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基于环氧组分的沥青混凝土混合料的组成测定,用于公路桥梁的薄层涂料
本文通过分析国内外经验、理论和实践研究的结果,评价了热固性添加剂对沥青主要指标和沥青混凝土物理力学性能的影响。确保提高道路桥梁路面的阻力、强度和抗裂性是乌克兰科学家和道路工人面临的最重要问题之一。一项紧迫的任务是提高这些涂料的性能,以延长其使用寿命,并尽量减少维修工作的频率,特别是在桥梁上,维修工作造成了很大的困难,需要大量的额外费用。毫无疑问,当使用环氧沥青混凝土作为薄层路面时,我们会得到一个坚固,灵活的表面,耐开裂和车辙。然而,这还不是一种研究充分的材料,无法广泛应用,因为它需要一种特殊的方法来确定其组成和制备技术。在由环氧沥青混凝土混合料制成的桥梁行车道的正交异性或钢筋混凝土板上应用薄层涂料时,需要特别注意其成分和烹饪工艺的最佳选择。应特别注意确保环氧沥青混合料所需的活力,使用所需的硬化剂,这会影响其性能,确定所需的热固性改性剂的数量,根据温度确定固化的持续时间。
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来源期刊
Pharmacy World & Science
Pharmacy World & Science 医学-药学
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>12 weeks
期刊最新文献
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