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A Method of Using Fluorescent Material to Characterize the Humidity Change of Adhesive Mortar

A technology for bonding mortar and humidity changes, applied in the direction of material analysis, material analysis, fluorescence/phosphorescence, etc. by optical means, which can solve the problems of high cost, slow development speed, and high detection cost, and achieve stable and efficient monitoring. , good visual effect

Active Publication Date: 2021-09-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The cohesive force of cemented mortar in construction has always been a relatively prominent problem. There is no good detection method for the time of mortar failure. There are various studies on testing the temperature and humidity changes of mortar, but the development speed of the testing methods for mortar temperature and humidity is low and convenient.
[0003] At present, the main method of testing the change of mortar temperature and humidity is to bury the humidity sensor, but in the actual construction project, the sensor buried in the mortar will break after a period of time, the detection cost is high, and it is impossible to determine whether it is broken or not. timely understanding
[0004] The thickness of the mortar is generally between 10mm-20mm, the size of the buried sensor is very limited, and its replacement cost is high, so it is urgent to invent a method for characterizing humidity changes with simple testing methods and good visibility
Metal oxide and nano-silicon dioxide are excellent materials in the selection of sensor materials, but the sensor is easy to be damaged during construction, and its cost is relatively high

Method used

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  • A Method of Using Fluorescent Material to Characterize the Humidity Change of Adhesive Mortar
  • A Method of Using Fluorescent Material to Characterize the Humidity Change of Adhesive Mortar
  • A Method of Using Fluorescent Material to Characterize the Humidity Change of Adhesive Mortar

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Embodiment 1

[0027] In this embodiment, the method of using fluorescent materials to characterize the humidity change of the bonded mortar, wherein the rhodamine microcapsules are placed in the bonded mortar, during the service period of the bonded mortar, an infrared transmission camera is used to take pictures of the real-time rhodamine fluorescence intensity, Characterize the moisture condition of the mortar. The infrared transmission camera can capture the actual fluorescence intensity of rhodamine during the test phase. According to the captured fluorescence intensity of rhodamine, the humidity of the mortar is represented, and the humidity of the mortar at different time nodes is compared to obtain the change of the mortar humidity.

[0028] A rhodamine microcapsule slot is opened on the bonding mortar, and then the rhodamine microcapsule is placed in the rhodamine microcapsule slot. The rhodamine microcapsule includes a capsule shell and a reagent coated in the capsule shell. The c...

Embodiment 2

[0034] The mortar construction process of a wall with a window facade is divided into five stages, see figure 1 , the first stage is the bottom bonding mortar construction, which ends when the first layer of rhodamine microcapsule installation level is reached; the second stage mortar construction ends at the lower edge of the window, and the third stage ends at the middle height of the window , the construction of the fourth stage ends at the upper edge of the window, and the fifth stage is the construction of the upper part.

[0035] After the second stage of the mortar construction process of the wall with windows on the front, the installation height of the card slots should be within 3cm-8cm of the lower edge of the windows to ensure that the heights of the three card slots are the same. .

[0036] After the third stage of mortar construction for walls with windows on the front, the distance between the rhodamine microcapsule slot and the left and right side edges of the...

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Abstract

The invention relates to a method for using fluorescent materials to characterize the humidity change of bonded mortar, in which rhodamine microcapsules are placed in the bonded mortar, and during the service period of the bonded mortar, an infrared transmission camera is used to shoot real-time rhodamine fluorescence intensity , representing the humidity of the mortar. The infrared transmission camera can capture the actual fluorescence intensity of rhodamine during the test phase. According to the captured fluorescence intensity of rhodamine, the humidity of the mortar is represented, and the humidity of the mortar at different time nodes is compared to obtain the change of the mortar humidity. Compared with the prior art, in the present invention, the moisture sensitivity of rhodamine is used to characterize the humidity change of the mortar, which is convenient and fast, and the visual effect is good; the rhodamine B reagent is carried by the TPU waterproof and moisture-permeable film, which significantly ensures the rhodamine B Reagent stability.

Description

technical field [0001] The invention relates to a method for characterizing the humidity change of the adhesive mortar, in particular to a method for characterizing the humidity change of the adhesive mortar by using a fluorescent material. Background technique [0002] The cohesive force of cemented mortar in construction has always been a relatively prominent problem. There is no good detection method for the time of mortar failure. There are various studies on testing the temperature and humidity changes of mortar, but the development speed of the testing methods for mortar temperature and humidity is low and convenient. [0003] At present, the main method of testing the change of mortar temperature and humidity is to bury the humidity sensor, but in the actual construction project, the sensor buried in the mortar will break after a period of time, the detection cost is high, and it is impossible to determine whether it is broken or not. timely understanding. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64E04F21/06
CPCE04F21/06G01N21/643
Inventor 姜伟范震顾海涛高国旗王璞瑾
Owner TONGJI UNIV