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A method for evaluating the permeability of asphalt pavement regenerant

An evaluation method and asphalt pavement technology, which is applied in the performance test of regenerant, which is easier to evaluate the penetration effect of regenerant on aged asphalt, and in the field of permeability evaluation of asphalt pavement regenerant, to achieve accurate and reliable test data, easy operation process, and facilitate promotion Effect

Active Publication Date: 2017-01-18
BEIJING MUNICIPAL ROAD & BRIDGE BUILDING MATERIALGRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides an evaluation method for the penetration effect of regenerant used for hot regeneration of asphalt pavement, which can determine the permeation effect of regenerant on aged asphalt. index problem

Method used

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  • A method for evaluating the permeability of asphalt pavement regenerant
  • A method for evaluating the permeability of asphalt pavement regenerant
  • A method for evaluating the permeability of asphalt pavement regenerant

Examples

Experimental program
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Embodiment 1

[0032] The specific operation steps of the inventive method of embodiment 1:

[0033] 1. (1) If figure 1 As shown, lay the base 3 flat, overlap the ring 5 and the ring 6, let the round holes on both sides of the ring pass through the positioning post 2 on the base 3, and tighten the nut 1 of the positioning post 2.

[0034] (2) if image 3 As shown, pour asphalt into the rings 5 ​​and 6, the asphalt liquid level is slightly higher than the inner edge of the ring 5, cool the asphalt to room temperature, and scrape off the higher part with a heated scraper to make the asphalt surface and the ring 5 The upper surface is flat.

[0035] (3) if image 3 As shown, the nut 1 is removed, and then the round holes on both sides of the ring 4 are passed through the positioning column 2, and the nut 1 is tightened on it. Pour a certain amount of regeneration agent into the ring 4, and install the top cover 7.

[0036] (4) Put the mold into a 100°C ventilated oven for curing for 4 hour...

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Abstract

The invention provides a permeability evaluating method of asphalt pavement recycling agent. The method comprises the following steps of (1) assembling a circular ring, (2) pouring aged asphalt in; (3) pouring recycling agent in; (4) performing maintenance; (5) obtaining samples; (6) performing performance testing. The greater the softening value difference value between the aged asphalt and the samples, the better the permeability of the recycling agent is. The permeability evaluating method of the asphalt pavement recycling agent can effectively the permeability of the thermal recycling agent for asphalt pavements.

Description

technical field [0001] The invention relates to a method for testing the performance of regenerants, in particular to a method for evaluating the permeability of asphalt pavement regenerants, especially a method for easily evaluating the permeation effect of regenerants on aged asphalt, which belongs to the technology of road pavement material performance testing field. Background technique [0002] The design service life of asphalt pavement is generally 8 to 15 years. From now on, about 10% of asphalt pavement will enter the maintenance or reconstruction cycle every year, and the waste asphalt pavement materials will reach millions of tons every year. If these waste asphalt pavement materials can be recovered and recycled, at least hundreds of millions of yuan in material costs will be saved every year, and with the continuous construction of infrastructure, this figure is still growing at a rate of about 15% per year. [0003] Thermal regeneration technology of waste asp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/04
Inventor 柳浩杨丽英董雨明王建国王真李振李恩光王宝新季节徐世法
Owner BEIJING MUNICIPAL ROAD & BRIDGE BUILDING MATERIALGRP