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Epoxy rubber composite modified asphalt and preparation method thereof

A technology of composite modified asphalt and epoxy rubber, which is applied in the direction of building components, building insulation materials, buildings, etc., and can solve the problems of not having elastic modulus adjustable function, not having high elasticity and high viscosity characteristics, etc.

Inactive Publication Date: 2021-07-06
JIANGYIN TAIFU ASPHALTUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical invention belongs to the category of polymer modified asphalt and natural asphalt composite modified asphalt technology described in conventional pouring asphalt mixing type 2. Although it can improve the high and low temperature performance of existing petroleum asphalt and natural asphalt composite modified asphalt to a certain extent, However, it does not have the function of adjusting the elastic modulus, nor does it have high elastic and high viscosity characteristics under service conditions.

Method used

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  • Epoxy rubber composite modified asphalt and preparation method thereof
  • Epoxy rubber composite modified asphalt and preparation method thereof
  • Epoxy rubber composite modified asphalt and preparation method thereof

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preparation example Construction

[0033] The present invention also provides a kind of preparation method of epoxy rubber composite modified asphalt, specifically divided into the following steps:

[0034] Step 1, taking base asphalt, epoxy asphalt main agent, epoxy asphalt curing agent, rubber powder, regulating oil, viscosity reducer, composite stabilizer by weighing according to the mass ratio described in the claim;

[0035] Step 2: Heat the base asphalt to 170-190°C, heat the epoxy resin main agent and curing agent to 60-70°C respectively, then add the epoxy resin main agent to the base asphalt, and use a stirrer at a temperature of 170-190°C Stirring at ℃ for 60-120s at a stirring rate of 500-1500 rpm to obtain mixture 1;

[0036] Step 3, add the adjusting oil, viscosity reducer, and dry rubber powder to the mixture 1 in the above step 2 respectively, keep the temperature between 170-190°C, and the stirring speed is 500-1500 rpm, after the addition is complete Stir for 45-120 minutes to obtain mixture 2...

Embodiment 1

[0039] According to the epoxy resin: asphalt mass ratio of 40:60, epoxy resin main agent: curing agent mass ratio of 3:1, weigh 60 parts of base asphalt, 30 parts of epoxy resin main agent, and 10 parts of curing agent. Heat base asphalt to 180°C, epoxy resin main agent and curing agent to 65°C, then add epoxy resin main agent to base asphalt, use a stirrer to stir at 180°C for 90s, stirring speed at 1000 rpm, mixture 1 was obtained. Then add 5 parts of regulating oil, 3 parts of viscosity reducing agent, and 10 parts of dry rubber powder into the above mixture 1 respectively, keep the temperature at 180°C, and stir at a speed of 1000 rpm, and stir for 60 minutes after the addition to obtain the mixture 2. Then add 10 parts of curing agent, keep the stirring temperature between 180°C, the stirring rate is 1000 rpm, and the stirring reaction time is 90s, then add 0.2 parts of composite stabilizer, at a temperature of 180°C, the stirring rate is 1000 rpm Under the condition of...

Embodiment 2

[0045] According to the epoxy resin: asphalt mass ratio of 30:70, epoxy resin main agent: curing agent mass ratio of 3:1, weigh 60 parts of base asphalt, 30 parts of epoxy resin main agent, and 10 parts of curing agent. Heat base asphalt to 180°C, epoxy resin main agent and curing agent to 65°C, then add epoxy resin main agent to base asphalt, use a stirrer to stir at 180°C for 90s, stirring speed at 1000 rpm, mixture 1 was obtained. Then add 5 parts of regulating oil, 3 parts of viscosity reducing agent, and 10 parts of dry rubber powder into the above mixture 1 respectively, keep the temperature at 180°C, and stir at a speed of 1000 rpm, and stir for 60 minutes after the addition to obtain the mixture 2. Then add 10 parts of curing agent, keep the stirring temperature between 180°C, the stirring rate is 1000 rpm, and the stirring reaction time is 90s, then add 0.2 parts of composite stabilizer, at a temperature of 180°C, the stirring rate is 1000 rpm Under the condition of...

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Abstract

The invention provides epoxy rubber composite modified asphalt and a preparation method thereof. The epoxy rubber composite modified asphalt comprises the following components in parts by weight: 10-70 parts of epoxy resin, 5-20 parts of rubber powder, 30-90 parts of asphalt, 0-10 parts of regulating oil, 1-5 parts of a viscosity reducer and 0.1-0.5 part of a composite stabilizer. The epoxy rubber composite modified asphalt has the remarkable technical characteristics of being adjustable in rigidity, low in viscosity in the construction process, high in viscosity and elasticity under the service condition, good in high-temperature stability, high in durability, energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of road engineering bridge deck pavement, in particular to an epoxy rubber composite modified asphalt and a preparation method thereof. Background technique [0002] The steel bridge deck pavement is laid on the steel panel of the bridge to protect the steel bridge deck for safe and comfortable driving of the vehicle. layer, etc.) composition. Among them, the main function of the protective layer is to form a waterproof system together with the waterproof adhesive layer to prevent rainwater from penetrating into the steel panels on the pavement surface of the bridge deck, corroding the steel panels, and at the same time provide the role of bearing road loads. This requires that the protective layer has dense and impermeable properties, excellent mechanical properties, and durable properties such as anti-fatigue and anti-cracking. The steel bridge deck protection layer generally adopts cast asphalt mixture,...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L63/00C08L21/00
CPCC08L95/00C08L2201/08C08L63/00C08L21/00
Inventor 丁爱民夏咸明顾军华蒋传华吕以伟
Owner JIANGYIN TAIFU ASPHALTUM
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