Asphalt-based material, preparation method and application of asphalt-based material

An asphalt-based, emulsified asphalt technology, applied in building thermal insulation materials, building components, pavement details, etc., can solve problems such as complex preparation processes, and achieve the effect of simple construction and low cost

Inactive Publication Date: 2015-11-18
JSTI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Publication No. CN104403079A discloses a polymer material for quickly repairing asphalt pavement cracks and its preparation method. It is made of two components A and B through mixing and rapid curing. Under the condition of 20°C, it can be opened to traffic within 30 minutes. The preparation process of the component is complicated, and it needs to be filled with nitrogen and sealed for storage

Method used

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  • Asphalt-based material, preparation method and application of asphalt-based material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of component A:

[0032] The emulsified asphalt is commercially available anionic emulsified asphalt, the average volume particle size is less than 10 μm, and the fine material is made of carbon black and calcium powder at a mass ratio of 1:2. When heating 60% emulsified asphalt with a solid content of 65% to 35°C while stirring, add 2% fine material and 2% anionic dispersant, then slowly add 36% rubber latex with a solid content of 42% at a temperature of 40°C , and stir evenly to obtain component A.

[0033] Preparation of component B:

[0034] Calcium chloride 98% and sodium chloride 2% are dissolved in water by mass, stirred evenly to prepare a mixed solution with a concentration of 5%.

[0035] After mixing and curing component A and component B at a mass ratio of 5:1, an asphalt-based material that can quickly repair cracks in asphalt pavement is obtained.

Embodiment 2

[0037] Preparation of component A:

[0038] The emulsified asphalt is commercially available anionic emulsified asphalt, the average volume particle size is less than 10 μm, and the fine material is made of carbon black and calcium powder at a mass ratio of 1:2. Heat emulsified asphalt 65% with a solid content of 68% to 40°C while stirring, add 2% fine material and 2% anionic dispersant with stirring, and then slowly add 31% rubber latex with a solid content of 46% at a temperature of 45°C , and stir evenly to obtain component A.

[0039] Preparation of component B:

[0040] Calcium chloride 99.5% and sodium chloride 0.5% are dissolved in water by mass, stirred evenly to prepare a mixed solution with a concentration of 20%.

[0041]After mixing and curing component A and component B at a mass ratio of 8:1, an asphalt-based material that can quickly repair cracks in asphalt pavement is obtained.

Embodiment 3

[0043] Preparation of component A:

[0044] The emulsified asphalt is commercially available anionic emulsified asphalt, the average volume particle size is less than 10 μm, and the fine material is made of carbon black and calcium powder at a mass ratio of 1:2. Heat emulsified asphalt 60% with a solid content of 62% to 30°C while stirring, add 2.5% fine material and 1.5% anionic dispersant with stirring, and then slowly add 36% rubber latex with a solid content of 50% at a temperature of 35°C , and stir evenly to obtain component A.

[0045] Preparation of component B:

[0046] Calcium chloride 98.5% and sodium chloride 1.5% are dissolved in water by mass, stirred evenly to prepare a mixed solution with a concentration of 15%.

[0047] After mixing and curing component A and component B at a mass ratio of 12:1, an asphalt-based material that can quickly repair cracks in asphalt pavement is obtained.

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Abstract

The invention discloses an asphalt-based material, a preparation method and application of the asphalt-based material. The asphalt-based material is formed by mixing components A and B, wherein component A comprises the following components in parts by mass: 50 to 76 parts of emulsified asphalt, 22 to 46 parts of rubber latex, 0 to 2 parts of fine stuff and 1 to 2 parts of an anionic dispersant; component B comprises 100 parts by mass of a coagulant. The asphalt-based material is a two-component asphalt pavement rehabilitation material, components A and B are mixed in parts by mass to break system charge balance and concentration balance, and a 3s film can be formed, and has strong bonding strength with a cement and asphalt mixture; convenience in construction and low cost are ensured, construction on a moist base surface is allowed, and the problem that a road is required to be closed for a long time during road rehabilitation in the prior art is solved.

Description

technical field [0001] The invention relates to a material for road construction, in particular to a non-toxic asphalt-based material for quickly repairing cracks in asphalt pavement at normal temperature with self-repairing function and a preparation method thereof. Background technique [0002] With the continuous increase of traffic volume, the early failure of asphalt pavement is becoming more and more serious, especially the problem of pavement cracks. If it is not treated in time, the cracks will cause pits, road internal swelling, peeling and other diseases, which will seriously affect the driving safety and stability, and greatly reduce the service life of the road. Therefore, repairing pavement cracks in time is of great significance to the normal use of roads. [0003] At present, the crack repair materials produced in China at room temperature have defects such as poor flexibility at low temperature and low bond strength with the crack wall, which can easily caus...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L9/08C08L13/02C08L9/04C08L11/02C08K3/04C08K3/26C08K3/16E01C11/02E01D19/08
Inventor 王文峰吴冬生吴春颖韦武举高状元牛晓伟李爱芳
Owner JSTI GRP CO LTD
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