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Sealing material of asphalt pavement water permeation coefficient

A water permeability coefficient and sealing material technology, applied in suspension and porous material analysis, permeability/surface area analysis, measuring devices, etc., can solve problems such as insufficient viscosity of putty or plasticine, difficult test work, and poor sealing

Active Publication Date: 2019-01-04
山东省华冠建材技术开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, in the traditional water seepage coefficient test of asphalt pavement, firstly, seal the ring-mounted sealing area with putty or plasticine, and then stack strips of sealing material twisted into the thickness of a thumb in the center of the ring-shaped sealing area and form a circle to seal the water seepage Put the meter on the measuring point on the surface of the test piece, then press the water seepage meter on the surface of the strip putty or plasticine with a little force, and then add the counterweight to prevent the pressure water from flowing out from the base and the road surface, and this is often due to The putty or plasticine is not viscous enough to seal the water seepage meter and the road surface, so that water seeps out from the edge of the water seepage meter, causing the test to fail
Re-changing materials and re-testing brought great difficulties to the test work

Method used

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  • Sealing material of asphalt pavement water permeation coefficient

Examples

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Comparison scheme
Effect test

Embodiment 1

[0017] A sealing material for the water permeability coefficient of asphalt pavement, comprising component A and component B, wherein component A is composed of the following raw materials in weight ratio: 22 parts of modified emulsified asphalt, 0.8 part of VAE, 20 parts of bentonite, 2.5 parts of borax 6 parts, 6 parts of sodium lignosulfonate, 2 parts of silane coupling agent; Component B is made of the raw materials of following weight ratio: 20 parts of fly ash, 1 part of VAE, 20 parts of bentonite, 1 part of methyl cellulose ether.

[0018] The preparation method of modified emulsified asphalt: heat the asphalt to 180-190°C, set aside, dissolve sodium dodecylbenzenesulfonate, isotridecanyl polyoxyethylene ether and bentonite in water, the quality of the three components and water Ratio 1:1.2:1:100, after being fully dissolved, heat to 65°C, add calcium chloride and sodium chloride, mix with asphalt, stir evenly, then add glycerin, grind evenly, cool down to obtain modific...

Embodiment 2

[0023] A sealing material for the water permeability coefficient of asphalt pavement, comprising component A and component B, wherein component A is composed of the following raw materials in weight ratio: 18 parts of modified emulsified asphalt, 0.5 part of VAE, 15 parts of bentonite, 2 parts of borax Parts, 5 parts of sodium lignosulfonate, 1 part of silane coupling agent; Component B consists of the following raw materials in weight ratio: 15 parts of fly ash, 0.5 part of VAE, 18 parts of bentonite, 0.2 part of methyl cellulose ether.

[0024] The preparation method of modified emulsified asphalt: heat the asphalt to 180°C, set aside, dissolve sodium dodecylbenzenesulfonate, isotridecanyl polyoxyethylene ether and bentonite in water, and the mass ratio of the three components to water is 1 :1:0.5:100, after being fully dissolved, heat to 65°C, add calcium chloride and sodium chloride, mix with asphalt, stir evenly, then add glycerin, grind evenly, cool down to obtain modifie...

Embodiment 3

[0027] A sealing material for asphalt pavement water seepage coefficient, comprising component A and component B, wherein component A is composed of the following raw materials in weight ratio: 25 parts of modified emulsified asphalt, 2 parts of VAE, 22 parts of bentonite, 5 parts of borax, 8 parts of sodium lignosulfonate, 5 parts of silane coupling agent; Component B consists of the following raw materials in the weight ratio: 22 parts of fly ash, 2 parts of VAE, 25 parts of bentonite, and 1.5 parts of methyl cellulose ether.

[0028] The preparation method of modified emulsified asphalt: heat the asphalt to 190°C, set aside, dissolve sodium dodecylbenzenesulfonate, isotridecanyl polyoxyethylene ether and bentonite in water, and the mass ratio of the three components to water is 1 :2:3:100, after being fully dissolved, heat to 65°C, add calcium chloride and sodium chloride, mix with asphalt, stir evenly, then add glycerol, grind evenly, cool down to obtain modified emulsified...

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Abstract

The invention discloses a sealing material of asphalt pavement water permeation coefficient. The sealing material comprises a component A and a component B, the component A is composed of, by weight,18-25 parts of modified emulsified asphalt, 0.5-2 parts of VAE, 15-22 parts of bentonite, 2-5 parts of borax, 5-8 parts of sodium lignosulfonate and 1-5 parts of silane coupling agent, and the component B is composed of, by weight, 15-22 parts of coal ash, 0.5-2 parts of VAE, 18-25 parts of bentonite and 0.2-1.5 parts of methyl cellulose ether. The sealing material has good waterproof and impervious effect, has good performance in bonding and sealing with the surface of an asphalt pavement, is easy to recycle and does not pollute the pavement.

Description

technical field [0001] The invention belongs to the field of traffic road tests, and in particular relates to a sealing material for water seepage coefficient of asphalt pavement. Background technique [0002] Water permeability coefficient of asphalt pavement is an important index reflecting the gradation and water stability of asphalt mixture on pavement. If the entire asphalt pavement is permeable, water will inevitably enter the base layer or roadbed, reducing the bearing capacity of the pavement. On the contrary, if there is an impermeable layer in the asphalt pavement, and the surface layer can quickly permeate water, it will not form a water film and improve skid resistance. There are great benefits. So pavement seepage has become an important index to evaluate pavement performance. [0003] Generally, in the traditional water seepage coefficient test of asphalt pavement, firstly, seal the ring-mounted sealing area with putty or plasticine, and then stack strips of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08C04B26/28
CPCC04B26/285C04B2111/00482C04B2111/00991G01N15/08C04B18/08C04B14/104C04B24/2623
Inventor 邵海涛田延刚唐田谯爱芝甄平江陈成立袁惠星李慧慧王锦涛
Owner 山东省华冠建材技术开发有限公司
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