Chloride ion concentration detection device and non-destructive detection method for reinforced concrete structure
A technology of reinforced concrete and chloride ion concentration, applied in the direction of material inspection products, etc., can solve the problems of high labor intensity, structural damage, time-consuming and laborious, etc., and achieve the effect of reducing labor intensity, preventing corrosion and thinning, and small electric field range
Active Publication Date: 2016-04-20
浙大宁波理工学院
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The disadvantages of this detection method are obvious. First, the detection process must be drilled first, which is labor-intensive, time-consuming and laborious, and very inconvenient; moreover, the key point is that the drilling-type detection method will cause structural damage and damage to it.
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as figure 1 , figure 2 As shown, the chlorine ion concentration detection device of the reinforced concrete structure of the present invention includes a plurality of detection units and a DC power supply, wherein each detection unit corresponds to a DC power supply. A plurality of detection units such as three are arranged in a row, and are distributed in the water level change area on the surface of the reinforced concrete structure 4 from high to low.
[0026]Each detection unit includes a waterproof protective cover 1 with both ends open and a cover plate 2 . The waterproof protective cover 1 is an integral square frame cover composed of a top plate 1.1, a bottom plate 1.2 and two side plates 1.3. The inner surface of the cover plate 2 is detachably connected, such as being screwed with a stainless steel plate 3 . The inner...
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The invention discloses a chloride ion concentration detection device of a reinforced concrete structure and a nondestructive testing method thereof. The device comprises detection single units (1) and a direct current power supply, wherein a stainless steel plate (3) is arranged in each detection single unit; a cover plate (2) of each detection single unit, a water-proof protective housing (1) and the surface of the reinforced concrete structure (4) form a closed cavity; electrolyte solution is injected into the cavity; the stainless steel plate (3) is also positioned in the cavity; a negative electrode of the direct current power supply is connected with reinforcement (4.1) of the reinforced concrete structure (4), and a positive electrode of the direct current power supply is connected with the stainless steel plate (3) of each detection single unit through a wire; the key point of the method is that the chlorine ion concentrations at different time points correspond to the chlorine ion concentrations of different depths of the reinforced concrete structure (4). According to the device and the method, the chlorine ion concentrations of different depths of the reinforced concrete structure (4) can be effectively detected, the detection process is convenient, and structural damage is not caused.
Description
technical field [0001] The invention relates to the field of durability detection of coastal reinforced concrete, in particular to a chloride ion concentration detection device and a non-destructive detection method for reinforced concrete structures such as bridge piers, caps or wharves. Background technique [0002] Coastal reinforced concrete structures are located in harsh corrosive environments such as seawater and marine climates, and there are a large number of chloride ions that are corrosive to steel bars. Therefore, whether their engineering life can meet the century-old requirements that people expect from design is a very serious problem. Not only in China, but also worldwide, huge economic losses are caused every year due to insufficient durability of concrete structures. [0003] The process of chloride ions penetrating into concrete is gradually infiltrating from the surface layer to the inside. When chloride ions penetrate into the inner layer where the steel...
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IPC IPC(8): G01N33/38
Inventor 毛江鸿崔磊金伟良徐亦冬俞凯奇夏晋许晨
Owner 浙大宁波理工学院