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Preparation method of seam bonding belt bonding layer material for repairing asphalt pavement

A technology of asphalt pavement and adhesive layer, which is applied in the direction of asphalt material adhesive, adhesive, adhesive type, etc. It can solve the problems of adhesive layer peeling, water entering cracks, and inability to play a repairing role, so as to achieve optimal performance , good adhesive performance, and the effect of widening the applicable temperature range

Inactive Publication Date: 2022-02-11
梁昌云
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, although the surface layer of the seam tape has good wear resistance, the adhesive layer often peels off, causing water to enter the cracks, so that it cannot play a repairing role.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation of modifier: Add 0.05mol racemic polylactic acid, 0.055mol DCC and 0.055mol HOBt to tetrahydrofuran, heat to 55°C to dissolve, then add 0.06mol 3-(N-allylamino)propyl base trimethoxysilane, heated to 55 ° C for 8 hours, after the reaction, add water to precipitate, filter with suction, and dry to obtain the modifier;

[0037] (2) Preparation of modified asphalt: Heat 100g of 90# petroleum asphalt to 180°C to completely flow, then add 10g of the modifier prepared above, and transfer it to a high-speed shearing machine for processing, the shearing temperature is 180°C, and the shearing temperature is 180°C. The cutting time is 30min, and then transferred to a high-speed mixer for processing, the mixing speed is 1000r / min, and the mixing time is 30min to obtain modified asphalt;

[0038] (3) Preparation of bonding layer material: 100g of the above-mentioned modified asphalt is added in a high-speed mixer, and 5g of terpene resin, 10g of calcined kaolin, 5g ...

Embodiment 2

[0040] The difference between embodiment 2 and embodiment 1 is that the consumption of modifying agent is adjusted to 8g.

[0041] (1) Preparation of modifier: Add 0.05mol racemic polylactic acid, 0.055mol DCC and 0.055mol HOBt to tetrahydrofuran, heat to 55°C to dissolve, then add 0.06mol 3-(N-allylamino)propyl base trimethoxysilane, heated to 55 ° C for 8 hours, after the reaction, add water to precipitate, filter with suction, and dry to obtain the modifier;

[0042] (2) Preparation of modified asphalt: Heat 100g of 90# petroleum asphalt to 180°C to flow completely, then add 8g of the modifier prepared above, and transfer it to a high-speed shearing machine for processing, the shearing temperature is 180°C, and the shearing temperature is 180°C. The cutting time is 30min, and then transferred to a high-speed mixer for processing, the mixing speed is 1000r / min, and the mixing time is 30min to obtain modified asphalt;

[0043] (3) Preparation of bonding layer material: 100g ...

Embodiment 3

[0045] The difference between Example 2 and Example 1 is that the terpene resin is replaced by a modified terpene resin.

[0046] Preparation of modified terpene resin: Add 6.5g of β-pinene and 3.5g of vinylpyridine to toluene, add 0.5g of anhydrous aluminum chloride after dissolution, heat to 70°C for 5 hours, add water to terminate the reaction, Filtrate, wash the organic phase with water until neutral, and recover toluene by distillation under reduced pressure to obtain a modified terpene resin.

[0047](1) Preparation of modifier: Add 0.05mol racemic polylactic acid, 0.055mol DCC and 0.055mol HOBt to tetrahydrofuran, heat to 55°C to dissolve, then add 0.06mol 3-(N-allylamino)propyl base trimethoxysilane, heated to 55 ° C for 8 hours, after the reaction, add water to precipitate, filter with suction, and dry to obtain the modifier;

[0048] (2) Preparation of modified asphalt: heat 100g of 90# petroleum asphalt to 180°C to flow completely, then add 10g of the modifier prep...

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PUM

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Abstract

The invention discloses a preparation method of a seam bonding belt bonding layer material for asphalt pavement patching, and relates to the technical field of pavement patching materials, and the preparation method comprises the following preparation steps: (1) preparing a modifier; (2) preparing modified asphalt; and (3) preparing a bonding layer material. According to the invention, petroleum asphalt is used as a raw material, the use performance of the petroleum asphalt is optimized by modifying the petroleum asphalt through the modifier, the auxiliary materials are added to prepare the seam bonding belt bonding layer material, and the prepared seam bonding belt bonding layer material is suitable for rapid repair of asphalt pavement cracks. When in use, only one surface of the bonding layer of the seam bonding belt needs to be pressed to be bonded to the crack, so that the repairing effect can be achieved.

Description

Technical field: [0001] The invention relates to the technical field of pavement repair materials, in particular to a preparation method of a seam tape adhesive layer material for asphalt pavement repair. Background technique: [0002] Asphalt pavement refers to various types of road surfaces that are paved with road asphalt materials mixed with mineral materials. Asphalt binder improves the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. [0003] After a period of use, the asphalt pavement will be damaged in varying degrees and ranges. If the initial slight damage can be repaired and maintained in time, the expansion trend and speed of the damage will be controlled. Seam tape is a quick repair method for asphalt pavement, which does not require heating and is easy to construct, so it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J167/04C09J11/08C09J11/04
CPCC09J195/00C09J11/08C09J11/04C08L67/04C08L45/00C08L57/02C08K3/346
Inventor 梁昌云
Owner 梁昌云
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