Tool for measuring the size, position, spacing and overlap length of rebar in a concrete structure
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United States of America Patent
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Dec 13, 2022
Grant Date -
Aug 6, 2020
app pub date -
Jan 30, 2020
filing date -
Feb 1, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A tool and system for measuring the size, position, and spacing of rebar in a concrete structure comprises a card preferably having a linear periphery. Around the periphery are a plurality of cutouts, with each of the cutouts adapted to measure the diameter of a standard rebar. The periphery of the card also has a series of hash marks to determine linear measurements. The amount of clear cover of the resulting concrete is measured by placing the tool on rebar inboard of the formwork and counting the hash marks to the adjacent formwork. The spacing between two rebars is measured by placing the tool on one rebar and counting the hash marks between two rebars. Alternatively, the distance between rebars and rebar overlap length is estimated by using the tool to determine the scale, if the space between bars is and overlap is longer that the tool length.
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