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Chloride content test rod and preparation method thereof

A test rod and chloride technology, which is applied in the direction of chemical reaction of materials and material analysis by observing the influence of chemical indicators, can solve the problem that the operation level of testing equipment and testing personnel is relatively high, and it is difficult to promote and other problems, to achieve the effect of less time-consuming, simple and convenient operation, and fast speed.

Pending Publication Date: 2019-06-14
NANTONG ACADEMY OF BUILDING RES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the commonly used methods for detecting the content of chloride ions in concrete mainly include silver nitrate titration, potentiometric titration, direct potentiometric method, ion chromatography, etc. These methods without exception have high requirements for testing equipment, testing conditions and testing personnel. , it is difficult to promote in the actual production practice

Method used

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  • Chloride content test rod and preparation method thereof
  • Chloride content test rod and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A manufacturing process for a chloride content test rod, comprising the following steps:

[0030] a) Preparation of impregnating solution: fill the chemical reaction tank with a silver nitrate solution of 2.45% by mass, the length of the chemical reaction tank is not less than 1000mm, the width is not less than 500mm, and the stirring temperature of the chemical tank is 20±0.5°C;

[0031] b) Preparation of spray treatment liquid: put potassium chromate solution with a mass percentage of 7.8% into the anti-corrosion solution tank of the automatic sprayer, and the flow rate of the automatic sprayer is set at 10mL / min-30mL / min;

[0032] c), hanging: clip the entire reaction test paper 2 substrates on the wooden clips of the movable frame respectively;

[0033] d), impregnation: immerse the lower end of the base material of the reaction test paper 2 into the silver nitrate solution, and the silver nitrate solution rises to the entire reaction test paper 2 under capillary ac...

Embodiment 2

[0044] A manufacturing process for a chloride content test rod, comprising the following steps:

[0045]a) Preparation of impregnating solution: Fill a chemical reaction tank with a silver nitrate solution of 0.245% by mass, the length of the chemical reaction tank is not less than 1000mm, the width is not less than 500mm, and the stirring temperature of the chemical tank is 20±0.5°C;

[0046] b) Preparation of spray treatment liquid: put potassium chromate solution with a mass percentage of 0.78% into the anti-corrosion solution tank of the automatic sprayer, and the flow rate of the automatic sprayer is set at 10mL / min-30mL / min;

[0047] c), hanging: clip the entire reaction test paper substrate 2 on the wooden clips of the movable frame;

[0048] d), impregnation: immerse the lower end of the base material of the reaction test paper 2 into the silver nitrate solution, and the silver nitrate solution rises to the entire reaction test paper 2 under capillary action;

[0049]...

Embodiment 3

[0059] A manufacturing process for a chloride content test rod, comprising the following steps:

[0060] a) Preparation of impregnating solution: fill the chemical reaction tank with a silver nitrate solution of 15.0% by mass, the length of the chemical reaction tank is not less than 1000mm, the width is not less than 500mm, and the stirring temperature of the chemical tank is 20±0.5°C;

[0061] b) Preparation of spray treatment liquid: put potassium chromate solution with a mass percentage of 45.5% into the anti-corrosion solution tank of the automatic sprayer, and the flow rate of the automatic sprayer is set at 10mL / min-30mL / min;

[0062] c), hanging: clip the entire reaction test paper 2 substrates on the wooden clips of the movable frame respectively;

[0063] d), impregnation: immerse the lower end of the base material of the reaction test paper 2 into the silver nitrate solution, and the silver nitrate solution rises to the entire reaction test paper 2 under capillary a...

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Abstract

The invention relates to a chloride content test rod and a production and manufacturing process thereof. The chloride content test rod comprises a plastic package shell, reaction test paper and a detection time indication strip; the plastic package shell is composed of transparent plastic; holes are formed in the bottom and the two sides of the plastic package shell; scales are marked on the plastic package shell in the longitudinal direction; a base material of the reaction test paper is raw wood pulp paper or a fiber material; silver chromate and silver nitrate are uniformly distributed on the surface of the reaction test paper and inside the reaction test paper; a base material of the time indication strip is a chemical fiber; the length of the time indication strip is matched with thewidth of the plastic package shell and does not exceed the edge of the plastic package shell; and copper sulfate powder is attached to the surface of the chemical fiber. The chloride content test rodhas the advantages that the operation is easy, the precision is high, the detection process consumes less time, the detection precision meets the requirements of concrete and mortar quality control, the chloride content test rod is suitable for large-scale production, and the like.

Description

technical field [0001] The invention relates to the detection of chloride ion content in freshly mixed concrete and mortar, in particular to a chloride content test stick for rapidly measuring chloride ion content, and a production process for the chloride content test stick. Background technique [0002] Chloride in concrete destroys the passivation film of steel bars, forms corrosion current, and greatly promotes the process of steel bar corrosion, which is the main reason for the instability and destruction of concrete structures. Therefore, in the construction process of construction projects, it is very necessary to detect the chloride ion content in fresh concrete and mortar. [0003] At present, the commonly used methods for detecting the content of chloride ions in concrete mainly include silver nitrate titration, potentiometric titration, direct potentiometric method, ion chromatography, etc. These methods without exception have high requirements for testing equipme...

Claims

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Application Information

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IPC IPC(8): G01N21/78
Inventor 陈灵丁志成陈成王志军王雁飞高岚崔建生严伟刚
Owner NANTONG ACADEMY OF BUILDING RES
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