Special colored asphalt cementing agent for water drainage pavement and preparation method of special colored asphalt cementing agent

A technology of colored asphalt and cementitious material, applied in the field of colored asphalt, can solve the problems of fading of pavement, uneven distribution of pigments, high production and processing costs, etc.

Active Publication Date: 2017-01-11
GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation of colored asphalt binder has gone through two different stages. The early use of decolorized asphalt products has high production and processing costs, uneven distribution of pigments, p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] Formula: 90 parts of C9 petroleum resin, 45 parts of naphthenic rubber oil, 20 parts of SBS, 5 parts of SBR, 5 parts of high density polyethylene, 5 parts of phenolic resin, 6 parts of GN-1 type high viscosity asphalt modifier, Sasobit 3 parts of warm mixing agent, 10 parts of polyamide PA6610, 0.3 part of sulfur, 0.2 part of zinc stearate.

[0031] Method:

[0032] 1) Weigh each raw material, and after mixing, continue to stir and swell for 2-3 hours at 120-140°C until it is in a molten state;

[0033] 2) heating the raw material in the molten state in step 1) to 160-180 ° C, high-speed shearing or colloid mill grinding for 1-2 hours, to obtain a semi-finished product of special colored asphalt cement;

[0034] 3) The semi-finished product of step 2) is put into the development tank, and the secondary development is carried out under the condition of 170-185 DEG C for 2-3 hours to obtain the finished product of special colored asphalt cementitious ...

Example Embodiment

[0036] Example 2

[0037]Formula: 100 parts of C9 petroleum resin, 55 parts of naphthenic rubber oil, 20 parts of SBS, 5 parts of SBR, 5 parts of high density polyethylene, 5 parts of rosin resin, 6 parts of GN-1 type high viscosity asphalt modifier, Sasobit 3 parts of warm mixing agent, 10 parts of polyamide PA6610, 0.3 part of sulfur, 0.2 part of zinc stearate.

[0038] Preparation method: same as Example 1.

[0039] After testing, the technical indicators of the special colored asphalt binder in Example 2 are: penetration (25°C) is 44, softening point is 82°C, ductility (5°C) is 46cm, dynamic viscosity at 60°C is 31000Pa.s, elasticity Recovery (25°C) is 85%, kinematic viscosity at 135°C is 1.8Pa.s, storage stability is 48 hours softening point difference of 1.2°C, mass loss after film oven heating test (TFOT) is 0.2%, penetration ratio (25 °C) is 70%, ductility (5 °C) is 25 cm, and ductility (15 °C) is greater than 1 m.

Example Embodiment

[0040] Example 3

[0041] Formula: 90 parts of C9 petroleum resin, 45 parts of naphthenic rubber oil, 22 parts of SBS, 6 parts of SBR, 6 parts of high density polyethylene, 10 parts of rosin resin, 8 parts of TPS asphalt high viscosity agent, 4 parts of Sasobit warm mix agent , Polyamide PA6615, sulfur 0.5, zinc stearate 0.2.

[0042] Preparation method: same as Example 1.

[0043] After testing, the technical indicators of the special colored asphalt binder in Example 3 are: penetration (25°C) is 38, softening point is 87°C, ductility (5°C) is 50cm, dynamic viscosity at 60°C is 42000Pa.s, elasticity Recovery (25℃) was 92%, kinematic viscosity at 135℃ was 2.5Pa.s, storage stability was 48 hours softening point difference of 1℃, mass loss after film oven heating test (TFOT) was 0.3%, penetration ratio (25 °C) is 73%, ductility (5 °C) is 33 cm, and ductility (15 °C) is greater than 1 m.

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Abstract

The invention discloses a special colored asphalt cementing agent for a water drainage pavement. The special colored asphalt cementing agent is prepared from the following raw materials in parts by weight: 20 to 120 parts of petroleum resin, 20 to 100 parts of rubber oil, 3 to 30 parts of a thermoplastic elastomer, 1 to 10 parts of a rubber type modified material, 1 to 10 parts of high-density polyethylene, 1 to 13 parts of thermoplastic resin, 2 to 20 parts of a high-viscosity agent, 1 to 10 parts of temperature mixing agent, 4 to 40 parts of polyamide, 0.2 to 1 part of a vulcanizing agent and 0.1 to 0.5 part of a dispersing agent. A corresponding preparation method comprises performing development twice at the temperature of 120 to 140 DEG C and 170 to 185 DEG C, each development is carried out for 2 to 3 hours. The special colored asphalt cementing agent prepared by the process meets the index requirement of the Technical Specification for Colored Asphalt Pavement of Urban Road, has the characteristics of high resistance to low and high temperatures, high adhesivity, high resistance to water damage, high durability and the like, and is particularly applied to Southern damp-hot type, large traffic volume type and water drainage type colored asphalt pavements.

Description

technical field [0001] The invention belongs to the technical field of colored asphalt, and in particular relates to a special colored asphalt binder used for drainage pavement and a preparation method thereof. Background technique [0002] At present, colored asphalt pavement has been widely used in parks, bicycle lanes, bus lanes, and landscape roads. The use of colored asphalt pavement for urban roads has many advantages: ①Color improves the appearance of the road surface; ②Reduces fatigue and helps driving safety; Unlike ordinary asphalt pavement, the binder used in colored asphalt pavement is not petroleum asphalt, but colored asphalt binder. [0003] The preparation of colored asphalt binder has gone through two different stages. The early use of decolorized asphalt products has high production and processing costs, uneven distribution of pigments, poor road performance and durability, and road surface diseases and pavement fading often occur in the early stages of pa...

Claims

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Application Information

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IPC IPC(8): C08L57/02C08L91/00C08L53/02C08L9/06C08L23/06C08L61/06C08L93/04C08L77/06C08K3/06C08K5/098
CPCC08L57/02C08L2205/035C08L2207/062C08L91/00C08L53/02C08L9/06C08L23/06C08L61/06C08L77/06C08K3/06C08K5/098C08L93/04
Inventor 徐国栋覃润浦刘斌清李培国胡省谭继宗禤炜安彭文举王鹏赵梓竹
Owner GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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