Method for quickly detecting water content of emulsified asphalt cold-recycling mixture

A technology of cold recycled mixture and asphalt mixture, which is applied in the direction of using material absorption and weighing, and can solve problems such as the inability to guide the production of mixture in real time, and the slow detection rate of water content in emulsified asphalt cold recycled mixture.

Active Publication Date: 2015-06-17
BEIJING MUNICIPAL ROAD & BRIDGE BUILDING MATERIALGRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for quickly detecting the water content of emulsified asphalt cold recycled mixture, which can solve the problem that the water content of emulsified asphalt cold recycled mixture is slow to detect and cannot guide the production of the mixture in real time, and the test The method is simple and reliable

Method used

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  • Method for quickly detecting water content of emulsified asphalt cold-recycling mixture
  • Method for quickly detecting water content of emulsified asphalt cold-recycling mixture
  • Method for quickly detecting water content of emulsified asphalt cold-recycling mixture

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Effect test

Embodiment 1

[0037] Control the water content in the production process of the mixture for the Huaxi Road emulsified asphalt cold recycling project. According to the design results of the mix ratio, the external water content: W=1.5%.

[0038] The results of the indoor calibration test are shown in Table 1.

[0039] Table 1 Indoor calibration test results

[0040]

[0041] standard curve as figure 1 shown.

[0042] The results of field testing are shown in Table 2:

[0043] Table 2 On-site inspection test results

[0044]

[0045]

[0046] The production of emulsified asphalt cold recycled mixture is controlled in real time by the rapid detection method of emulsified asphalt cold recycled mixture, which ensures the performance of emulsified asphalt cold recycled mixture. The performance sampling results of emulsified asphalt cold recycled mixture produced on site are as follows:

[0047] Table 3 Field sampling results of performance of emulsified asphalt cold recycled mixture ...

Embodiment 2

[0050] The water content in the production process of the mixed material for the east extension of Baima Road emulsified asphalt cold recycling project is controlled. According to the design results of the mix ratio, the external water content: W=2.2%.

[0051] The results of the indoor calibration test are shown in Table 4.

[0052] Table 4 Indoor calibration test results

[0053]

[0054] standard curve as figure 2 shown.

[0055] The results of on-site inspection and the adjustment suggestions for external water mixing are shown in Table 5:

[0056] Table 5 On-site inspection test results

[0057]

[0058]

[0059] The production of emulsified asphalt cold recycled mixture is controlled in real time by the rapid detection method of emulsified asphalt cold recycled mixture, which ensures the performance of emulsified asphalt cold recycled mixture. The performance sampling results of emulsified asphalt cold recycled mixture produced on site are as follows:

[00...

Embodiment 3

[0063] Daxing Tuanzhong Road Emulsified Asphalt Cold Recycling Project will control the water content in the production process of the mixture. According to the design results of the mix ratio, the external water content: W=2.0%.

[0064] The results of the indoor calibration test are shown in Table 7.

[0065] Table 7 Indoor calibration test results

[0066]

[0067] standard curve as image 3 shown.

[0068] The results of field testing are shown in Table 8:

[0069] Table 8 On-site inspection test results

[0070]

[0071] The production of emulsified asphalt cold recycled mixture is controlled in real time by the rapid detection method of emulsified asphalt cold recycled mixture, which ensures the performance of emulsified asphalt cold recycled mixture. The performance sampling results of emulsified asphalt cold recycled mixture produced on site are as follows:

[0072] Table 6 Field sampling results of performance of emulsified asphalt cold recycled mixture

[...

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Abstract

The invention relates to a method for quickly detecting the water content of an emulsified asphalt cold-recycling mixture. The method comprises the following steps: (1) mixing an emulsified asphalt cold-recycling mixture sample according to the target mixture proportion design, or taking a sample from a production field; (2) weighting to obtain the mass of a beaker; (3) weighting to obtain the total mass of the beaker and a mixture; and (4) pouring out the emulsified asphalt cold-recycling mixture, weighting to obtain the total mass of the beaker, and emulsified asphalt, water, fine aggregates and the like adhered to the beaker, calculating a standard adherence rate P and an actual adherence rate P' of different external water blending quantities, and drawing a standard curve as an adjustment reference by taking the external water blending quantities as a horizontal ordinate and taking the adherence rates as a vertical coordinate. According to the method, test data is accurate and reliable, a test process is simple and quick, the water content can be monitored in real time during production of the emulsified asphalt cold-recycling mixture, the external water blending quantities are regulated, a wrapping effect of the emulsified asphalt and a compaction effect of the mixture are ensured, and an effective method is provided for production quality control over the emulsified asphalt cold-recycling mixture.

Description

technical field [0001] The invention is a method for quickly detecting the water content of emulsified asphalt cold recycled mixture, especially a method that can easily solve the problem that the water content of emulsified asphalt cold recycled mixture is slow to detect and cannot guide the production of the mixture in real time. It belongs to highway Technical field of asphalt pavement regeneration. Background technique [0002] In the 21st century, with the rapid development of my country's economy, road transportation is playing an increasingly important role, and a large number of early road surfaces need maintenance and major and medium repairs. According to the design period of asphalt pavement of 8 to 15 years, from now on, about 10% of the asphalt pavement will be repaired, overhauled or rebuilt every year, and the old asphalt mixture produced every year will reach millions of tons. The recycling of old asphalt mixture can save hundreds of millions of RMB in mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/02
Inventor 柳浩杨丽英董雨明王建国王真李振李根李恩光王宝新郭雪武昊翔杨炎生王钎完宇培
Owner BEIJING MUNICIPAL ROAD & BRIDGE BUILDING MATERIALGRP
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