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Semi-flexible matrix asphalt mixture permeability rapid detection method and application

A technology of asphalt mixture and detection method, which is applied in the direction of permeability/surface area analysis, measuring device, suspension and porous material analysis, etc., and can solve the problems of long detection time of mixture permeability

Pending Publication Date: 2022-06-24
邯郸中建恒质工程项目管理有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problem that the traditional mixture permeability detection time is too long, the present invention proposes a rapid detection method and application of semi-flexible matrix asphalt mixture permeability

Method used

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  • Semi-flexible matrix asphalt mixture permeability rapid detection method and application
  • Semi-flexible matrix asphalt mixture permeability rapid detection method and application
  • Semi-flexible matrix asphalt mixture permeability rapid detection method and application

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Embodiment 1

[0026] A method for rapid detection of permeability of semi-flexible parent asphalt mixture, comprising the following steps:

[0027] S1. Preparation for standard compactor test mode: select the standard compactor test mode with an inner diameter of 101.6mm±0.2mm and a barrel height of 87mm;

[0028] S2. Specimen preparation and measurement: The semi-flexible parent asphalt mixture is prepared by the compaction method, and the semi-flexible pavement parent asphalt mixture is formed by double-sided compaction for 50 times; height is h 1 , the height from the lower surface to the bottom of the cylinder is h 2 , specimen height h=87-h 1 -h 2 , the height of specimen 1 is 62.2mm;

[0029] S3. Specimen treatment: The standard compaction specimen of semi-flexible parent asphalt mixture is not demolded after the preparation is completed. After the specimen is cooled, it is immersed in water with a water surface height greater than 87mm for 2 hours to make the specimen saturated w...

Embodiment 2

[0039] A method for rapid detection of permeability of semi-flexible parent asphalt mixture, comprising the following steps:

[0040] S1. Preparation for standard compactor test mode: select the standard compactor test mode with an inner diameter of 101.6mm±0.2mm and a barrel height of 87mm;

[0041] S2. Specimen preparation and measurement: The semi-flexible parent asphalt mixture is prepared by the compaction method, and the semi-flexible pavement parent asphalt mixture is formed by double-sided compaction for 50 times; height is h 1 , the height from the lower surface to the bottom of the cylinder is h 2 , specimen height h=87-h 1 -h 2 , the height of specimen 2 is 62.5mm;

[0042] S3. Specimen treatment: The standard compaction specimen of semi-flexible parent asphalt mixture is not demolded after the preparation is completed. After the specimen is cooled, it is immersed in water with a water surface height greater than 87mm for 2 hours to make the specimen saturated w...

Embodiment 3

[0052] A method for rapid detection of permeability of semi-flexible parent asphalt mixture, comprising the following steps:

[0053] S1. Preparation for standard compactor test mode: select the standard compactor test mode with an inner diameter of 101.6mm±0.2mm and a barrel height of 87mm;

[0054] S2. Specimen preparation and measurement: The semi-flexible parent asphalt mixture is prepared by the compaction method, and the semi-flexible pavement parent asphalt mixture is formed by double-sided compaction for 50 times; height is h 1 , the height from the lower surface to the bottom of the cylinder is h 2 , specimen height h=87-h 1 -h 2 , the height of specimen 3 is 62.8mm;

[0055]S3. Specimen treatment: The standard compaction specimen of semi-flexible parent asphalt mixture is not demolded after the preparation is completed. After the specimen is cooled, it is immersed in water with a water surface height greater than 87mm for 2.5h to make the specimen saturated with ...

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Abstract

In order to solve the technical problem that the traditional permeability detection time of the mixture is too long, the invention provides the rapid permeability detection method for the semi-flexible matrix asphalt mixture and the application. The detection method comprises the following steps: preparing a test mold of a standard compaction apparatus, preparing and measuring a test piece, treating the test piece, injecting 100ml of water into the test mold, starting a timer for timing at the same time until no water is accumulated on the surface of the test piece, stopping the timer at the moment, and recording the time as t; and permeability calculation: representing the permeability of the semi-flexible matrix asphalt mixture by using a permeability coefficient K, wherein K is equal to 72 / t. According to the method, the permeability of the matrix asphalt mixture can be accurately detected in a short time, then the grouting material is added according to a proper ratio of the grouting material to the asphalt, and the construction of the semi-flexible pavement is rapidly completed, so that the semi-flexible pavement achieves good performance.

Description

technical field [0001] The invention belongs to the technical field of asphalt mixture pavement, in particular to a method and application for rapid detection of the permeability of semi-flexible parent asphalt mixture. Background technique [0002] Semi-flexible pavement combines the advantages of flexible pavement and rigid pavement, and provides a feasible solution for solving the problem of rutting at intersections and bus stops. Semi-flexible pavement is composed of large-void parent asphalt mixture and grouting material. The key technology is to pour grouting material into the parent asphalt mixture. The higher the filling rate, the better the performance of semi-flexible pavement materials. The key factor affecting grouting is Permeability of master asphalt mixtures. Therefore, in the production of master asphalt mixture, test personnel need to quickly detect the permeability of the mixture to adjust the mix ratio to meet the design requirements. The traditional met...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/08
Inventor 刘逢涛边建民高颖左小林弓社强吕达仁庞俊杰王金柱王月辉李金垣张少波孔维兵曹建宁王辉张博昊郭庆林
Owner 邯郸中建恒质工程项目管理有限公司
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