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现行 AASHTO M 254-06(2019)
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Standard Specification for Corrosion-Resistant Coated Dowel Bars 耐腐蚀涂层传力杆的标准规范
本规范涵盖了防腐性能至关重要的涂层传力杆的材料、制造和安装,可替代不锈钢或其他经批准的非腐蚀性金属。销钉应由一个覆盖有有机涂层的钢芯组成。涂层销钉应为以下两种类型之一:A型——涂层材料与混凝土的粘结强度足够低,因此无需使用粘结破坏剂。B类-涂层材料与混凝土形成粘结强度,因此需要使用粘结破坏剂。使用的粘合剂类型应符合涂层制造商的建议。
This specification covers the materials, manufacture, and installation of coated dowel bars to be used where corrosion-resistant performance is essential and may be used in lieu of stainless or other approved noncorrosive metals. The dowel shall consist of a steel core covered by an organic coating.The coated dowels shall be one of the two following types:Type A- The coating material develops sufficiently low-bond strength with concrete that a bond breaker is not required.Type B- The coating material develops bond strength with concrete such that a bond breaker is required. The type of bond breaker used shall be as recommended by the coating manufacturer.
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