Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for determining infiltration depth and infiltration capacity of protection agent on surface of cement-based material through fluorescent dye

A technology of cement-based materials and fluorescent dyes, which is applied in the field of reflecting the penetration amount and penetration depth of protective agents in surface-modified cement-based materials, and the penetration depth and penetration amount of protective agents, which can solve the cumbersome and accurate testing method of protective agent penetration depth. Insufficient degree of measurement and other problems, to achieve the effect of short measurement cycle, comprehensive measurement, and low dosage

Active Publication Date: 2015-11-11
UNIV OF JINAN
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the lack of an effective method for measuring the penetration of the protective agent in the prior art and the cumbersome and insufficient accuracy of the test method for the penetration depth of the protective agent, the present invention provides a method for measuring the penetration depth of the protective agent on the surface of cement-based materials using fluorescent dyes. and penetration method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for determining infiltration depth and infiltration capacity of protection agent on surface of cement-based material through fluorescent dye
  • Method for determining infiltration depth and infiltration capacity of protection agent on surface of cement-based material through fluorescent dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The water-cement ratio of the concrete used is 0.6, and the age is 1 year. The concrete has a relatively large pore size, and an obvious fluorescent signal can be detected with a small amount of fluorescent dye and protective agent mixed. The mixture of protective agent and fluorescent dye is defined as the test solution (the same below), the components of the test solution and their mass percentages are: fluorescent dye: 0.005%, protective agent 99.995%, and the fluorescent dye is rhodamine 6G, the protective agent is tetraethyl orthosilicate, and the protective agent and rhodamine 6G form a uniform solution.

[0033] The detection method is as follows: cut a columnar concrete test block with a diameter of 15cm into a columnar test block with a thickness of 2cm, seal the periphery of the test block with epoxy resin and soak it in the prepared test solution for half an hour. Take out the test piece and put it in a drying oven for 24 hours. After the sample is dried, us...

Embodiment 2

[0038] The concrete used has a water-cement ratio of 0.5 and an age of 10 years. The concrete has a long age and a relatively dense material structure. In order to detect the fluorescence spectrum more clearly, a slightly higher content of fluorescent dye is mixed with the protective agent. The components of the test solution in this embodiment and their mass percentages are: fluorescent dye: 0.01%, protective agent: 99.99%, the fluorescent dye is o-chlorophenyl fluorone, and the protective agent is tetraethyl orthosilicate.

[0039] The detection method is the same as in Example 1, except that samples are taken at the surface layer, 1mm, 2mm, 3mm, 4mm, and 5mm depth respectively. It can be seen from the fluorescence results that the penetration depth of the protective agent is 4mm. From the surface layer to 4mm away from the surface layer, the peak intensities of o-chlorophenylfluorone are: 6297.33, 3876.92, 1056.77, 769.72, 254.88, that is, the concentration ratio of ethyl o...

Embodiment 3

[0041] The concrete used has a water-cement ratio of 0.38 and an age of 20 years. The concrete has a small water-cement ratio, a long age, and a very small pore size. In order to detect an obvious fluorescence spectrum, it is necessary to mix a higher content of fluorescent dye with a protective agent. . The components of the test solution in this example and their mass percentages are: fluorescent dye: 0.03%, protective agent: 99.97%, the fluorescent dye is salicyl fluorone, and the protective agent is nano-SiO 2 Sol.

[0042] The detection method is the same as in Example 1, except that samples are taken at 0mm, 1mm, 2mm, 3mm, and 4mm from the surface layer. It can be seen from the fluorescence results that the penetration depth of the protective agent is 3mm. From the surface layer to 3mm away from the surface layer, the peak intensities of salicyl fluorone are: 8634.46, 4826.33, 847.69, 252.45 respectively, that is, the concentration ratio of the protective agent is 8634...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for determining the infiltration depth and infiltration capacity of a protection agent on the surface of a cement-based material through a fluorescent dye. The method comprises the following steps: mixing the protective agent with the fluorescent dye reaching up to the amount of testing, making a mixture of the fluorescent dye and the protective agent act on the surface of the cement-based material at a certain age, sampling at different depths of the cement-based material, and performing fluorescence spectrum detection on samples, thereby obtaining the infiltration depth and concentration distribution of the fluorescent dye according to a ratio of fluorescence strength, the fluorescent dye and the protective agent, and further obtaining the content of the protective agent in different depth ranges of the samples. The method is simple and feasible, is short in measurement period, low in cost and wide in application range, can be applied to quantitative analysis on the concentration and mass distribution of the protective agent at different infiltration depth parts, and can be used for precisely evaluating the infiltration performance of the protective agent on the surface of the cement-based material and further effectively controlling the exertion of effect of the protective agent in the cement-based material.

Description

technical field [0001] The invention relates to a method for measuring the penetration depth and penetration amount of a protective agent on the surface of a cement-based material by using a fluorescent dye, which is particularly suitable for reflecting the penetration amount and penetration depth of a protective agent in a surface-modified cement-based material, and belongs to the technical field of building materials. Background technique [0002] The dense pore structure of the cement-based surface is of great significance for resisting the invasion of harmful substances in the external environment. The surface layer is the weak link of the cement-based material. The surface layer of the cement-based material is exposed to the environment. It has been subjected to continuous erosion by the external environment for a long time and becomes loose and porous or has cracks. In this way, harmful substances in the external environment will invade the interior of the cement-based ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N15/08G01N13/04
Inventor 侯鹏坤程新张蕊周宗辉杜鹏张秀芝黄世峰
Owner UNIV OF JINAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com