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Aqueous emulsion-based resin modified crack-pouring material and preparation method thereof

A technology for joint filling material and base resin, which is applied in the field of water-emulsion-based resin modified joint filling material and preparation, and can solve the problems of general effect, short construction time, low filling rate, etc.

Active Publication Date: 2016-10-26
SHENZHEN TRAFFIC CONSTR ENG TEST & DETECTION CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hot asphalt technology is to heat the asphalt to 100°C above the softening point to form a flow state and then pour it into the crack. Although it has a certain viscosity, it has the defects of low pouring rate and poor low temperature performance.
Emulsified asphalt technology is to pour emulsified asphalt into cracks for treatment. Although its fluidity is better than that of hot asphalt and its filling rate is higher, it has a certain shrinkage with the occurrence of demulsification reaction, so the effect is average.
Epoxy adhesive technology gives full play to the high-strength bonding properties of epoxy resin, but solvent-based epoxy resin has disadvantages such as short construction time, harsh construction conditions, not environmentally friendly, and low pouring rate.
At the same time, ordinary hot asphalt and emulsified asphalt can only play a role in filling the voided part of cement concrete, and cannot really play a bonding role, so the effect is not ideal

Method used

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  • Aqueous emulsion-based resin modified crack-pouring material and preparation method thereof
  • Aqueous emulsion-based resin modified crack-pouring material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of the first component of water emulsion resin modified joint filling material:

[0023] Aromatic hydrocarbon oil by mass ratio: rubber oil: modifier: tackifier: toughening agent: stabilizer A: curing agent A=100:20:2:5:1:0.1:10, select aromatic hydrocarbon oil, rubber oil , Modifier, tackifier, toughening agent, stabilizer A and curing agent, spare.

[0024] Mix the curing agent and the toughening agent uniformly to obtain mixture A. Heat the rubber oil to 150°C, and add the modifier while stirring. After the modifier is added, keep stirring for about 12 minutes to form a uniform mixture B. Heat the reaction vessel to about 160°C, add aromatic oil and tackifier in turn, after the two are melted and mixed, add mixture B, turn on the shearing equipment, shear at low speed (3000r / min) for 15min, then high speed (8000r / min) ) cut for 8min. Keep the low shear rate (3000r / min) and the heating temperature at 160°C, add mixture A and stabilizer A, keep stirring ...

Embodiment 2

[0051] Preparation of the first component of water-emulsion-based resin modified joint filling material:

[0052] Aromatic hydrocarbon oil by mass ratio: rubber oil: modifier: tackifier: toughening agent: stabilizer A: curing agent A=100:22:3:5:2:0.2:12, select aromatic hydrocarbon oil, rubber oil , Modifier, tackifier, toughening agent, stabilizer A and curing agent, spare.

[0053] Mix the curing agent and the toughening agent uniformly to obtain mixture A. Heat the rubber oil to 150°C, and add the modifier while stirring. After the modifier is added, keep stirring for about 12 minutes to form a uniform mixture B. Heat the reaction vessel to about 160°C, add aromatic oil and tackifier in turn, after the two are melted and mixed, add mixture B, turn on the shearing equipment, shear at low speed (3000r / min) for 15min, then high speed (8000r / min) ) cut for 8min. Keep the low shear rate (3000r / min) and the heating temperature at 160°C, add mixture A and stabilizer A, keep sti...

Embodiment 3

[0080] Preparation of the first component of water-emulsion-based resin modified joint filling material

[0081] Aromatic hydrocarbon oil by mass ratio: rubber oil: modifier: tackifier: toughening agent: stabilizer A: curing agent A=100:25:4:8:3:0.3:15, select aromatic hydrocarbon oil, rubber oil , Modifier, tackifier, toughening agent, stabilizer A and curing agent, spare.

[0082] Mix the curing agent and the toughening agent uniformly to obtain mixture A. Heat the rubber oil to 150°C, and add the modifier while stirring. After the modifier is added, keep stirring for about 12 minutes to form a uniform mixture B. Heat the reaction vessel to about 160°C, add aromatic oil and tackifier in turn, after the two are melted and mixed, add mixture B, turn on the shearing equipment, shear at low speed (3000r / min) for 15min, then high speed (8000r / min) ) cut for 8min. Keep the low shear rate (3000r / min) and the heating temperature at 160°C, add mixture A and stabilizer A, keep stir...

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Abstract

The invention discloses an aqueous emulsion-based resin modified crack-pouring material composed of two groups, wherein the first-group material components comprise a substrate crack-pouring material, water, an emulsifier, a stabilizer B and a defoaming agent; the substrate crack-pouring material comprises aromatic hydrocarbon oil, rubber oil, a modifier, a tackifier, a toughening agent, a stabilizing agent and a curing agent, wherein the mass ratio of the aromatic hydrocarbon oil to the rubber oil to the modifier to the tackifier to the toughening agent to the stabilizing agent A to the curing agent is 100:(20-30):(2-8):(5-10):(1-5):(0.1-0.5):(10-20), and the mass ratio of the substrate crack-pouring material to the water to the emulsifier to the stabilizer B to the defoaming agent is 100:(60-80):(0.5-1.0):(0.5-1.0):(0.5-1.0). The second-group material components comprise epoxy resin, a plasticizer, a diluent and an interfacial modifier, wherein the mass ratio of the epoxy resin to the plasticizer to the diluent to the interfacial modifier is 100:(5-10):(10-15):(0.5-1.0). During crack pouring of asphalt pavements and treatment of cement concrete broken slabs, the aqueous emulsion-based resin modified crack-pouring material can be effectively poured into crack depths, also has the properties of flexibility, shrinkage resistance, high adhesion and the like, and can significantly treat the damage.

Description

technical field [0001] The invention relates to a water-emulsion-based resin modified joint filling material and a preparation method thereof, which belong to the field of traffic engineering and building materials, and can be widely used in the treatment of asphalt pavement cracks, the treatment of broken slabs of old cement concrete, and the treatment of empty grouting of old cement concrete slabs Wait. Background technique [0002] With the rapid development of highway construction in our country, asphalt pavement has developed into the main pavement structure form of expressways and municipal roads due to its excellent characteristics such as comfort, easy repair, wear resistance and low noise. However, due to the huge vehicle loads on the roads in service in my country, and the large difference in high and low temperature climates in most areas, various cracks are prone to appear on the asphalt pavement directly, such as transverse cracks (temperature shrinkage cracking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J191/00C09J163/00C09J11/04C09J11/06C09J11/08
CPCC08K2201/014C08L2205/025C08L2205/035C09J11/04C09J11/06C09J11/08C09J191/00C08L91/00C08L63/00C08L9/06C08L29/04C08K13/02C08K3/06C08K3/34C08K2003/162C08K5/12
Inventor 何桂平孙政侯茜茜徐世颖蒋小花吴世珍王群刘星光马帅陈剑
Owner SHENZHEN TRAFFIC CONSTR ENG TEST & DETECTION CENT
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