首页> 外文学位 >Caracterisation de goujons de polymeres renforces de fibres de verre (PRFV) pour les dalles de chaussee jointees.
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Caracterisation de goujons de polymeres renforces de fibres de verre (PRFV) pour les dalles de chaussee jointees.

机译:用于连接的铺路板的玻璃纤维增​​强聚合物(GRPP)螺栓的特性。

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摘要

Joints are used in concrete pavements to control cracking due to thermal and environmental conditions.;Steel dowels are commonly used in Quebec to transfer load in concrete pavements from one slab to an adjacent slab providing vertical and horizontal alignment. In the north of America (particularly in Quebec), concrete pavements are however displayed on very harsh environmental conditions favouring the corrosion of the steel dowels and the deterioration of the slab joints. Corrosion of steel dowels is aggravated by the application of de-icing salts causing severe deteriorations of concrete due to the expansion of steel during the corrosion process.;Corrosion of steel dowels in concrete pavement reduces their useful service life and creates considerable maintenance and repair expenditures and also consequences to traffic and users. In attempt to reduce the effect of de-icing salts on dowels, epoxy coated steel dowels are used. Small defects during handling inevitably occur in the epoxy coat and corrosion remains a problem. Stainless steel dowels are a corrosion-free solution but remain expansive. Therefore a better solution must be found.;Glass fibre-reinforced polymer (GFRP) dowel bars are a possible maintenance-free and non corrosive alternative that will potentially reduce the overall life cycle cost and extending the service life of the concrete pavements.;The project proposes laboratory tests in order to determine the short- and long-term behaviour and properties of GFRP dowel bars and to develop a design methodology for their use in concrete pavements.;The GFRP dowels are manufactured by the company Pultrall Inc. in Thetford Mines (Quebec, Canada). Two types of resins will be used: vinylester and polyester for diameters sizes from 1 in to 1 3/4 in.;Keywords: concrete pavement, dowelled slab, jointed concrete pavement, GFRP dowel, durability, steel corrosion.
机译:节理用于混凝土路面中,以控制由于热和环境条件引起的开裂。魁北克省通常使用钢榫将混凝土路面中的载荷从一个板转移到相邻的板,以实现垂直和水平对齐。然而,在美国北部(特别是在魁北克),混凝土路面在非常恶劣的环境条件下被展示,这有利于销钉的腐蚀和平板接缝的劣化。由于在腐蚀过程中由于钢的膨胀,使用除冰盐会导致混凝土销钉严重腐蚀,从而加剧了销钉的腐蚀。;混凝土路面中销钉的腐蚀会降低其使用寿命,并产生可观的维护和维修费用并对流量和用户造成后果。为了减少除冰盐对销钉的影响,使用了环氧涂层的钢销钉。在处理过程中不可避免地会在环氧涂层中产生小缺陷,并且腐蚀仍然是一个问题。不锈钢销钉是一种无腐蚀的解决方案,但仍能保持膨胀。因此,必须找到更好的解决方案。玻璃纤维增​​强聚合物(GFRP)销钉是一种可能的免维护且无腐蚀的替代品,可能会降低整个生命周期的成本并延长混凝土路面的使用寿命。该项目提出实验室测试,以确定GFRP定位销的短期和长期性能,并开发用于混凝土路面的设计方法。GFRP定位销由T​​hetford Mines公司Pultrall Inc.制造。 (加拿大魁北克)。将使用两种类型的树脂:直径范围从1 in到1 3/4 in。的乙烯基酯和聚酯;关键词:混凝土路面,道板,连接的混凝土路面,GFRP销,耐久性,钢腐蚀。

著录项

  • 作者

    Montaigu, Mathieu.;

  • 作者单位

    Universite de Sherbrooke (Canada).;

  • 授予单位 Universite de Sherbrooke (Canada).;
  • 学科 Engineering Civil.
  • 学位 M.Sc.A.
  • 年度 2011
  • 页码 165 p.
  • 总页数 165
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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