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A kind of stretch-resistant and anti-fracture pavement material and preparation method thereof

A pavement material and anti-fracture technology, applied in building insulation materials, building components, buildings, etc., can solve problems such as poor fracture resistance, brittleness, and fracture, and achieve good fracture resistance and good tensile performance.

Inactive Publication Date: 2016-03-02
NANTONG SOUTHEAST HIGHWAY ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problems to be solved: Conventional asphalt pavement materials have poor tensile resistance and fracture resistance, and will become brittle and break after being used for a long time in an environment with too low temperature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A method for preparing a stretch-resistant and fracture-resistant pavement material. The preparation method includes the following steps: (1) Take 20 kg of coal tar pitch and add it to a reaction kettle, raise the temperature of the reaction kettle to 120 ° C, stabilize the temperature and then Add 7kg of dodecanoic acid and 11kg of bisphenol S-type epoxy resin to the reactor, stir for 30min, and the stirring speed is 100rpm; (2) Raise the temperature of the reactor to 135°C and then add maleic anhydride to the reactor 8kg of butadiene, 3kg of butadiene, stirred for 30min at a stirring speed of 100rpm; (3) shear the mixture for 15min with a shearer at a speed of 3000rpm; (4) add 1,4- Pentadiene is 4kg, and n-hexane is 8kg; (5) Finally, stir again. After stirring evenly, keep the temperature constant for 3 hours to obtain an epoxy asphalt pavement material with tensile and fracture resistance.

Embodiment 2

[0014] A method for preparing a stretch-resistant and fracture-resistant pavement material. The preparation method includes the following steps: (1) Take 18 kg of coal tar pitch and add it to a reaction kettle, raise the temperature of the reaction kettle to 120 ° C, stabilize the temperature and then Add 8kg of dodecanoic acid and 12kg of bisphenol S-type epoxy resin to the reactor, stir for 60min, and the stirring speed is 100rpm; (2) Raise the temperature of the reactor to 135°C and then add maleic anhydride to the reactor 6kg of butadiene, 5kg of butadiene, stirred for 30min at a stirring speed of 100rpm; (3) shearing the mixture for 20min with a shearer at a speed of 3000rpm; (4) adding 1,4- Pentadiene is 3kg, and n-hexane is 5kg; (5) Finally, stir again. After stirring evenly, keep the temperature constant for 3 hours to obtain an epoxy asphalt pavement material with tensile and fracture resistance.

Embodiment 3

[0016] A method for preparing a stretch-resistant and fracture-resistant pavement material. The preparation method includes the following steps: (1) Take 22 kg of coal tar pitch and add it to a reactor, raise the temperature of the reactor to 120°C, and when the temperature stabilizes, the Add 9kg of dodecanoic acid and 11kg of bisphenol S-type epoxy resin to the reactor, stir for 45min, and the stirring speed is 100rpm; (2) Raise the temperature of the reactor to 135°C and then add maleic anhydride to the reactor 7kg of butadiene, 4kg of butadiene, stirring for 30min at a stirring speed of 100rpm; (3) shearing the mixture for 15min with a shearer at a speed of 3000rpm; (4) adding 1,4- Pentadiene is 4kg, and n-hexane is 7kg; (5) Finally, stir again, keep the temperature constant for 3 hours after stirring evenly, and obtain an epoxy asphalt pavement material with tensile and fracture resistance.

[0017] The data results of the tensile strength and elongation at break of the e...

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Abstract

The invention relates to a stretch-resistant and fracture-resistant pavement material and a preparation method thereof. The stretch-resistant and fracture-resistant pavement material of the present invention is composed of the following components according to the weight ratio: 18-22 parts of coal tar pitch, dodecanoic acid 7-9 parts for bisphenol S-type epoxy resin, 6-8 parts for maleic anhydride, 3-5 parts for butadiene, 3-4 parts for 1,4-pentadiene, 5-8 parts of n-hexane. The preparation method of the stretch-resistant and fracture-resistant pavement material of the present invention comprises the steps of heating, mixing, stirring, shearing and the like. The prepared pavement material has good tensile resistance and fracture resistance, and can meet the needs of different road environments.

Description

technical field [0001] The invention relates to a pavement material and a preparation method thereof, in particular to an epoxy asphalt pavement material with tensile and fracture resistance and a preparation method thereof. Background technique [0002] In roads, streets, tunnels and other places, pavement materials are needed, and pavement materials include cement concrete, asphalt and other materials. These materials have their own advantages and disadvantages, and can meet the needs of different road pavement materials. Epoxy asphalt pavement material is one of the very important types with a high application rate. [0003] Conventional epoxy asphalt pavement materials have many disadvantages, such as poor tensile and fracture resistance. When the temperature is low in winter, the pavement material will be relatively brittle. Too much external force is prone to fracture. To solve this problem, it is necessary to improve the tensile and fracture resistance of pavement m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L51/08C08K5/09C08F283/10C08F222/06C08F236/06C08F236/04
Inventor 吴志仁何平赵张飞
Owner NANTONG SOUTHEAST HIGHWAY ENG
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