Electrochemical accelerated concrete hydration product corrosion measurement device

A measuring device and concrete technology, applied in the direction of measuring devices, scientific instruments, and material analysis through electromagnetic means, can solve the problems of existing technology, such as the limitation of adaptability and slow test process, and achieve good adaptability, wide measuring range, Apply a wide range of effects

Inactive Publication Date: 2016-05-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of the slow test process of measuring the dissolution of concrete hydration products in the prior art and the limited adaptability of the prior art, and provides an electrochemically accelerated concrete hydration product dissolution measurement device

Method used

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  • Electrochemical accelerated concrete hydration product corrosion measurement device
  • Electrochemical accelerated concrete hydration product corrosion measurement device

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Experimental program
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specific Embodiment approach 1

[0011] Embodiment 1: In this embodiment, an electrochemically accelerated concrete hydration product dissolution measurement device includes a cathode cylindrical test area 1, an anode cylindrical test area 2, a square base at the cathode end 3, a square base at the anode end 4, and a cathode end. Plate 5, anode plate 6, nut 7, screw rod 8, specimen fixing area 11 and two terminal posts 10; the central axis of the cathode cylindrical test area 1 and the anode cylindrical test area 2 is parallel to the screw rod 8, and the cathode The central axes of the cylindrical test area 1 and the anode cylindrical test area 2 coincide; Set symmetrically with the cathode cylindrical test area 1;

[0012] The side walls of the cathode cylindrical test area 1 and the anode cylindrical test area 2 are respectively provided with circular exhaust holes 9, the square base 3 of the cathode end and the square base 4 of the anode end are respectively provided with electrode slots, and the specimen ...

specific Embodiment approach 2

[0014] Embodiment 2: This embodiment differs from Embodiment 1 in that: the concrete specimen is installed in the specimen groove of the specimen fixing area 11 through a waterproof sealing material. Others are the same as in the first embodiment.

[0015] The waterproof sealing material in this embodiment is glass glue.

specific Embodiment approach 3

[0016] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the cathode cylindrical test area 1 and the anode cylindrical test area 2 are equipped with a corrosion medium. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to an electrochemical accelerated concrete hydration product corrosion measurement device, and mainly solves the problems of slow experiment process and restricted adaptability of existing technologies in measurement of concrete hydration product dissolution. The device comprises a cathode cylindrical test area, an anode cylindrical test area, a cathode end square base, an anode end square base, a cathode plate, an anode plate, nuts, screw rods, a test piece fixed area, wiring terminals and circular vent holes. The device provided by the invention has the advantages of simple structure, reasonable design, wide measurement range, wide application range, good adaptability and good durability. At the same time, test pieces of different shapes can be obtained by changing the shape of a test piece groove, thus being convenient for measuring the coupling effect of other factors and dissolution on concrete performance. The device provided by the invention can be applied to the concrete hydration product corrosion measurement field.

Description

technical field [0001] The invention relates to an electrochemically accelerated concrete hydration product dissolution measuring device. Background technique [0002] The long-term contact of hydraulic concrete with water inevitably causes corrosion. The main hydration products of corrosion are calcium hydroxide and calcium silicate hydrate (ie C-S-H gel), which leads to an increase in the internal porosity of the concrete matrix and a decrease in strength. The structure has a direct impact, further deteriorating its performance. The natural dissolution process is very slow, and it is imperative to study devices suitable for accelerated dissolution without changing its destruction mechanism. [0003] Scholars at home and abroad have tried many accelerated dissolution test methods, some of which are through chemical reactions between common chemical reagents and alkaline substances in cement hydration products to form new compounds to achieve the purpose of accelerated diss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/416
CPCG01N27/416
Inventor 卢爽王政周丽娜
Owner HARBIN INST OF TECH
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