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A method for testing the reflective performance of concrete materials

A detection method, concrete technology, applied in the direction of material analysis, scattering characteristic measurement, material analysis through optical means, etc., can solve problems such as unfavorable research and construction site detection, and achieve the effect of easy handling and operation, and low requirements for the use environment

Active Publication Date: 2018-10-02
于乾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no equipment for testing the reflective performance of concrete materials, which is not conducive to the development of related research and construction site testing

Method used

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  • A method for testing the reflective performance of concrete materials
  • A method for testing the reflective performance of concrete materials
  • A method for testing the reflective performance of concrete materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 with figure 2 As shown, a detection device for the reflective performance of concrete materials includes a dark box, a bunched light generating system, a photosensitive sensor 2 and a display device. The concrete specimen to be tested is placed at the bottom of the dark box; the photosensitive sensor 2 is arranged on the inner wall of the top of the dark box , preferably arranged at the center of the top of the dark box, and the photosensitive sensor 2 is connected to the display device; the inner wall of the dark box is covered with a layer of black rough material.

[0053] The bundled light generation system includes a light source 1 and a light path. The light source irradiates the bundled light obliquely on the upper surface of the concrete specimen to be tested through the light path, and diffuse reflection occurs. The photosensitive sensor receives the signal, converts the light signal into a quantitative signal through the display device and sh...

Embodiment 2

[0068] Such as Figure 5 As shown, the detection surface at this time is the side of the concrete specimen 7 to be tested, the light source 1 is at the same height as the center of the concrete specimen 7 to be tested, the photosensitive sensor 2 is located in the projection area of ​​the concrete specimen 7 to be tested on the side, and the light is irradiated to be tested. On the measuring surface, the irradiation point is the center of the concrete specimen 7 to be tested, and the beam of light is diffusely reflected on the surface to be tested, and part of the light is captured by the photosensitive sensor and transmits a signal. The principle is the same as in Embodiment 1.

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Abstract

The invention discloses a device and a method of detecting light reflection performance of a concrete material and application thereof. The device comprises a black box, a bundled light generating system, a photosensitive sensor and a display device, a to-be-detected concrete test piece is placed at the bottom of the black box, the photosensitive sensor is arranged on the inner wall of the black box and connected with the display device, the bundled light generating system comprises a light source and a light pathway, the light source irradiates bundled light on a to-be-detected face of the to-be-detected concrete test piece obliquely for diffuse reflection, the photosensitive sensor receives a signal, the light signal is converted into a quantitative signal and displayed through the display device, and the light reflection performance equivalent weight of the to-be-detected concrete test piece is calculated through the quantitative signal. The device is adjustable in parameters like incident angle and light intensity of the light source and can be used for simulating a light reflection process of materials under various circumstances. The light signal of light bundle diffuse reflection can be received through the photosensitive sensor and can be converted and displayed, so that light reflection performance of the materials can be observed more visually.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a detection device, detection method and application of the reflective performance of concrete materials. Background technique [0002] In modern engineering construction, the application of concrete materials is becoming more and more extensive. Correspondingly, the development of concrete materials also shows a trend of high performance and multi-directionality. At present, in roads, bridges, tunnels and other projects, the reflective performance of concrete pavement, road curbs and inner walls of tunnels at night has an increasing impact on road traffic safety. In actual engineering, the detection demand for reflective performance of concrete materials is increasing Increasingly, research related to this has also begun to be carried out. However, traditionally, there is no perfect and effective detection method or detection equipment for the detection of the reflectivity of co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/47
CPCG01N21/4738
Inventor 于乾刘惠华王婧于旭浩李晓彬
Owner 于乾
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