Electromagnetic field principle-based external nondestructive steel bar corrosion monitoring sensor and testing method
A technology for monitoring sensor and steel corrosion, applied in the direction of material magnetic variables, etc., can solve the problems of no external dynamic monitoring sensor and test method for accurately measuring the corrosion rate of steel bars, inability to quantitatively measure the corrosion rate of steel bars, and high cost
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[0120] Example 2, HPB300 smooth round steel bar with a steel bar diameter of 16mm and a length of 20cm. The raw materials of concrete are: cement is PI 525 Portland cement, sand is river sand with a fineness modulus of 2.6, and coarse aggregates are continuously graded. The crushed stone (the maximum particle size is 25mm), the water is tap water, the effective cross-section size of the test piece is 100mm×100mm, the length of the steel bar is 200mm, the protruding length of the steel bars on both sides is 50mm, and the length of the test piece is 100mm. After molding, the standard curing is 28d in the curing room. Take the poured reinforced concrete specimen as an example to illustrate the influence of the change of the position of the steel bar on the magnetic induction intensity:
[0121] The x-axis is established in the front and back directions, the y-axis is established in the left and right directions, and the z-axis is established in the up and down directions. Move the r...
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