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Crack agent and crack sticker using the crack agent

A cracking agent and cracking technology, which is applied in the field of cracking paste, cracking agent for road crack repair, cracking agent and cracking paste, which can solve the unsatisfactory anti-flow performance and low-temperature cracking resistance, and unrecorded crack pasting and bonding Strength and tensile properties, hidden dangers in construction, etc., to avoid heating energy loss, save machinery purchase and maintenance costs, and eliminate the need for professional training

Active Publication Date: 2021-01-22
北京中德建基路桥工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difference between the two is that the material composition system is different. The hot-adhesive method needs to be carried out under heating conditions, which has hidden dangers in construction, while the self-adhesive method relies on its own bonding ability to make it blend with the road surface, but the disadvantage is that the bonding strength is insufficient, and the tensile The performance is poor, and the anti-flow performance at high temperature and anti-crack performance at low temperature are unsatisfactory
However, this patent application also does not describe the bond strength and tensile properties of the crack patch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] A cracking agent is characterized in that, according to weight percentage, raw materials include the following components:

[0071] 325 mesh heavy calcium powder: 25%;

[0072] 325 mesh talcum powder: 20.5%;

[0073] Silane coupling agent KH-550: 1%;

[0074] Dopamine derivatives: 4%;

[0075] 70# asphalt: 20%;

[0076] Pressure sensitive hot melt adhesive KA100L: 7%;

[0077] Aromatic oil GXLQY-I: 10.5%;

[0078] Low-density polyethylene 1I50A: 3%;

[0079] Butadiene rubber: 4%;

[0080] Thermoplastic styrene-butadiene rubber YH-801: 2%;

[0081] Polypropylene EPS-30R: 3%.

[0082] The dopamine derivatives are prepared according to the following method: react polyethyleneimine (PEI; Mw=25000 Dalton) and 3,4-dihydroxybenzaldehyde under the condition of pH=4.5, then use sodium borohydride to reduce, and finally Add acetone precipitation to obtain; Wherein, the NH of the polyethyleneimine (PEI) 2 The molar ratio of the quantity to 3,4-dihydroxybenzaldehyde is 1:...

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Abstract

The invention discloses a crack gent and a crack sticker using the crack agent. The crack agent comprises the following raw materials: ground calcium carbonate powder; talcum powder; a silane couplingagent; a dopamine derivative; 70 # asphalt; a pressure-sensitive hot melt adhesive; aromatic hydrocarbon oil; low density polyethylene; butadiene rubber; thermoplastic styrene butadiene rubber and polypropylene. The crack agent not only can improve the bonding strength and tensile property of the road crack sticker, but also can improve the high-temperature flowing resistance and low-temperaturecracking resistance.

Description

technical field [0001] The invention belongs to the technical field of road maintenance, and in particular relates to a cracking agent and a crack sticker; more specifically, it relates to a cracking agent for repairing road cracks and a crack sticker using the cracking agent. Background technique [0002] With the continuous improvement of my country's economic and social development level, the level of road traffic construction has also been continuously improved. Past road structures such as mud-bound macadam structures can no longer meet the traffic needs of middle and high-grade roads. In order to match the road structure to the needs of economic development, high-grade roads with asphalt concrete structure and cement concrete structure have been vigorously developed. These structures use stable aggregates, which can make the road base structure have higher rigidity and strength. At the same time, the tensile strength of these structures is also excellent. What is espe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00C09J123/06C09J109/00C09J153/02C09J123/12C09J11/04C09J11/08C09J7/10C09J7/30E01C11/00
CPCC08K2003/265C08L2205/035C09J11/04C09J11/08C09J195/00C09J7/10C09J7/30E01C11/005C08L23/06C08L9/00C08L53/02C08L23/12C08L79/02C08K9/06C08K3/26C08K3/34
Inventor 白震
Owner 北京中德建基路桥工程技术有限公司
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