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Defining the Deterioration Process Through Ground Penetrating Radar

机译：通过地面穿透雷达定义劣化过程

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摘要

The work described in this paper seeks to further the understanding between ground penetrating radar (GPR) measurements and the different stages of bridge deck deterioration. This goal has been accomplished by evaluating slabs cast in a controlled environment and sections of in-service bridge decks. Seventeen fabricated slabs, previously exposed to an accelerated corrosion process over an extended period of time, were evaluated using half-cell potential (HCP) and GPR measurement methods. Another slab subjected to a similar accelerated corrosion process was tested continuously over a period of nine months. Both experiments in which slabs were subjected to accelerated corrosion indicate correlations between average half-cell potentials and GPR rebar reflection amplitudes. The 17 laboratory slabs show a correlation between HCP and GPR at a single point in time, while the continuously tested slab shows this correlation throughout the deterioration process.
机译：本文描述的工作旨在进一步了解地面穿透雷达（GPR）测量和桥式甲板劣化的不同阶段之间的理解。通过评估在受控环境中的平板和在维护在服务的桥式甲板的部分来实现这一目标。使用半电池电位（HCP）和GPR测量方法评估17个以前暴露于加速腐蚀过程的17个制造的板坯。在九个月内连续测试进行类似加速腐蚀过程的另一个板块。两种实验中，其中粘液被加速腐蚀表明平均半电池潜力和GPR钢筋反射幅度之间的相关性。 17实验室板在单点及时的HCP和GPR之间表现出相关的，而连续测试的板坯在整个劣化过程中显示出这种相关性。

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