Epoxy asphalt additive for road and bridge pavement as well as preparation method and use method of epoxy asphalt additive

A technology of epoxy asphalt and additives, which is applied in the direction of building components, building insulation materials, buildings, etc., and can solve problems such as damage to low-temperature crack resistance, uncertainty in the performance stability of asphalt mixtures, and inability to meet the actual use requirements of asphalt pavement.

Pending Publication Date: 2022-08-05
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reinforcement effect is not good, mainly due to the following three aspects: first, thermoplastic polyolefin plastics still cannot change the thermoplastic nature of asphalt, and it will still deform slowly under the repeated action of high temperature and heavy load, and gradually accumulate into rutting disease; secondly, The thermoplastic polyolefin elastomer has poor compatibility with the asphalt phase, even if it is in the form of a direct mixing tank, there will be different degrees of segregation between the thermoplastic polyolefin elastomer and the asphalt, thu

Method used

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  • Epoxy asphalt additive for road and bridge pavement as well as preparation method and use method of epoxy asphalt additive
  • Epoxy asphalt additive for road and bridge pavement as well as preparation method and use method of epoxy asphalt additive
  • Epoxy asphalt additive for road and bridge pavement as well as preparation method and use method of epoxy asphalt additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: a kind of epoxy asphalt additive for road and bridge paving, preparation method and use method thereof

[0065] The epoxy asphalt additive for road and bridge paving provided in this example, calculated in parts by weight, includes 40 parts of E-12, 20 parts of HY811, 5 parts of jER1256, 35 parts of P5998, 100 parts of oxidized asphalt, 0.1 part of 2-methyl Imidazole, 1 part AW128, 2 parts Antioxidant 1010.

[0066] A preparation process of epoxy asphalt additive for road and bridge paving is as follows:

[0067] S1. Put 40 parts of E-12, 20 parts of HY811, 5 parts of jER1256, 35 parts of P5998, 0.1 part of 2-methylimidazole, 1 part of AW128, and 2 parts of Antioxidant 1010 into a high-speed mixer to mix evenly;

[0068] S2. Use a twin-screw extruder to plasticize, shear and mix the uniformly mixed material in S1 to form an epoxy resin melt. The temperature of the first plasticizing section is set to 125 °C, and the temperature of the first mixing section i...

Embodiment 2

[0080] Embodiment 2: a kind of epoxy asphalt additive for road and bridge paving, preparation method and use method thereof

[0081] The epoxy asphalt additives for road and bridge paving provided in this example, calculated in parts by weight, include 60 parts of D.E.R.664UE, 5 parts of HY811, 5 parts of jER4250, 30 parts of P5061, 75 parts of coal tar pitch, and 0.2 parts of 2-methyl Imidazoline, 0.3 parts AW128, 1 part antioxidant 1010.

[0082] A preparation process of epoxy asphalt additive for road and bridge paving is as follows:

[0083] S1. Put 60 parts of D.E.R.664UE, 5 parts of HY811, 5 parts of jER4250, 30 parts of P5061, 0.2 part of 2-methylimidazoline, 0.5 part of AW128, 1 part of antioxidant 1010 into a high-speed mixer and mix uniformly;

[0084] S2. Use a twin-screw extruder to plasticize, shear and mix the uniformly mixed material in S1 to form an epoxy resin melt. The temperature of the first plasticizing section is set to 120 °C, and the temperature of the...

Embodiment 3

[0097] Embodiment 3: a kind of epoxy asphalt additive for road and bridge paving, preparation method and use method thereof

[0098] The epoxy asphalt additives for road and bridge pavement provided in this example, calculated in parts by weight, include 40 parts of YD-17, 5 parts of HY813, 10 parts of jER4250, 45 parts of P5061, 50 parts of oxidized asphalt, 0.2 parts of benzyl triacetate Ethyl ammonium chloride, 0.5 part AW163, 1 part antioxidant 245.

[0099] A preparation process of epoxy asphalt additive for road and bridge paving is as follows:

[0100] S1. Put 40 parts of YD-17, 5 parts of HY813, 10 parts of jER4250, 45 parts of P5061, 0.2 parts of benzyltriethylammonium chloride, 0.5 parts of AW163, 1 part of antioxidant 245 into the high-speed mixer and mix them evenly ;

[0101] S2. Use a twin-screw extruder to plasticize, shear, and mix the uniformly mixed material of S1 to form an epoxy resin melt. The temperature of the plasticizing section is set to 125 °C, and...

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PUM

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Abstract

The invention belongs to the technical field of road and bridge materials, and relates to an epoxy asphalt additive for road and bridge pavement as well as a preparation method and a use method thereof. The technical key points are as follows: the water-damage-resistant asphalt mixture comprises the following components in parts by weight: 40-60 parts of solid epoxy resin, 5-20 parts of a water-damage-resistant improver, 5-10 parts of an ultra-high molecular weight epoxy flexibilizer, 30-45 parts of a latent polyester curing agent, 50-100 parts of hard asphalt particles, 0.1-0.5 part of a curing accelerator, 0.3-1 part of a lubricating separant and 0.5-2 parts of an antioxidant. The epoxy asphalt additive is prepared under the condition of 110 to 140 DEG C. The softening points of the main raw materials such as the resin component, the curing agent, the hard asphalt particles and the like in the epoxy asphalt additive are controlled within the range of 90-130 DEG C, and the epoxy asphalt additive for road and bridge pavement is prepared by adopting a 110-140 DEG C melt extrusion process. And then directly putting the mixture into a mixing cylinder of an asphalt mixing plant to prepare the high-performance epoxy asphalt concrete with high-temperature rut resistance, low-temperature crack resistance and medium-temperature fatigue resistance.

Description

technical field [0001] The invention belongs to the technical field of road and bridge paving materials, and in particular relates to an epoxy asphalt additive for road and bridge paving, a preparation method and a use method thereof. Background technique [0002] Rutting-like diseases are prone to occur on asphalt roads and bridges with low-speed, heavy-load, and channelized traffic sections such as long longitudinal slopes, intersections, and truck lanes. In order to increase the resistance of the asphalt mixture to high temperature deformation, the addition of thermoplastic polyolefin plastics is often used to enhance and modify the asphalt mixture. However, the reinforcement effect is not good, mainly due to the following three aspects: firstly, thermoplastic polyolefin plastics still cannot change the thermoplastic nature of asphalt, it will still slowly deform under repeated action of high temperature and heavy load, and gradually accumulate into rutting diseases; seco...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L63/00C08L63/02C08G59/42C04B26/26
CPCC08L95/00C08G59/4276C04B26/26C08L63/00C04B14/02C04B24/281C04B24/283C04B2103/0068C04B2103/608Y02A30/60
Inventor 张志祥李款陈李峰潘友强关永胜郁嘉栋
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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