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Environment-friendly flame-retardant asphalt and preparation method thereof

An asphalt and environmental protection technology, which is applied in building insulation materials, building components, buildings, etc., can solve the problems of poor flame retardant effect, large smoke, and toxicity of decomposition products of inorganic flame retardants alone, and achieves the reduction of hydrophilicity and simple preparation , strong adsorption and exchange effects

Inactive Publication Date: 2015-07-15
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Halogen-containing flame retardants are currently mainly used in tunnel roads. Although they can play a role in flame retardancy and smoke suppression to a certain extent, they also have disadvantages such as high toxicity of decomposition products and large smoke; while commonly used inorganic The single flame retardant effect of flame retardant is poor

Method used

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  • Environment-friendly flame-retardant asphalt and preparation method thereof
  • Environment-friendly flame-retardant asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The environment-friendly flame retardant asphalt of this embodiment is made of the following raw materials in parts by weight: 100 parts of asphalt, 6 parts of medical stone, 15 parts of metal hydroxide, 4 parts of smoke suppressant, and 10 parts of coupling agent solution; the asphalt is Road petroleum asphalt; the metal hydroxide is aluminum hydroxide, the smoke suppressant is calcium oxide, and the coupling agent solution is made by mixing a titanate coupling agent and a solvent in a mass ratio of 1:4. Described solvent is methyl alcohol; Described parts by weight can be weight measurement units such as gram, two, jin, kilogram, ton, described road petroleum asphalt can adopt the road petroleum asphalt produced by Shandong Yurun Road Material Co., Ltd., described titanate As the coupling agent, titanate coupling agent produced by Tianchang Green Chemical Auxiliary Factory can be used.

[0023] The preparation method of the environment-friendly flame-retardant asphalt...

Embodiment 2

[0029] The environment-friendly flame retardant asphalt in this embodiment is made from the following raw materials in parts by weight: 100 parts of asphalt, 5 parts of medical stone, 10 parts of metal hydroxide, 3 parts of smoke suppressant, and 5 parts of coupling agent solution; the asphalt is Road petroleum asphalt; the metal hydroxide is magnesium hydroxide, the smoke suppressant is calcium oxide, and the coupling agent solution is made by mixing a titanate coupling agent and a solvent in a mass ratio of 1:5. Described solvent is ethanol; Described parts by weight can be weight measurement units such as gram, two, jin, kilogram, ton; Described road petroleum asphalt can adopt the road petroleum asphalt produced by Hengshui Diyi Petrochemical Co., Ltd., and described titanate The coupling agent can be a titanate coupling agent produced by Nanjing Pinning Coupling Agent Co., Ltd.

[0030] The preparation method of the environment-friendly flame-retardant asphalt of the pres...

Embodiment 3

[0036] The environment-friendly flame retardant asphalt in this embodiment is made from the following raw materials in parts by weight: 100 parts of asphalt, 3 parts of medical stone, 12 parts of metal hydroxide, 5 parts of smoke suppressant, and 12 parts of coupling agent solution; the asphalt is SBS modified asphalt; the metal hydroxide is magnesium hydroxide, the smoke suppressant is calcium oxide, and the coupling agent solution is made by mixing a titanate coupling agent and a solvent in a mass ratio of 1:5, The solvent is deionized water; the parts by weight can be weight units such as gram, two, kilogram, kilogram, ton; the SBS modified asphalt can be the SBS modified asphalt produced by Shanghai Qunkang Asphalt Technology Co., Ltd. The titanate coupling agent can be the titanate coupling agent produced by Tianchang Green Chemical Auxiliary Factory.

[0037] The preparation method of the environment-friendly flame-retardant asphalt of the present embodiment comprises th...

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Abstract

The invention provides an environment-friendly flame-retardant asphalt which is prepared from the following raw materials in parts by weight: 100 parts of asphalt, 2-10 parts of medical stone, 10-20 parts of metal hydroxide, 3-6 parts of smoke suppressor and 5-15 parts of coupling agent solution. The invention also provides a preparation method of the flame-retardant asphalt, which comprises the following steps: 1. drying the medical stone, pulverizing, and screening to obtain medical stone powder; 2. adding the metal hydroxide, smoke suppressor and medical stone powder into the coupling agent solution, stirring, and drying to obtain a mixture; 3. heating asphalt, and adding the mixture; and 4. carrying out low-speed shearing and high-speed shearing with a shearing machine, thereby obtaining the environment-friendly flame-retardant asphalt. The environment-friendly flame-retardant provided by the invention has the obvious advantages of flame retardancy, smoke inhibition, environment-friendly additives, low production cost, simple preparation process and the like, can obviously lower the oxygen index of the asphalt, and can effectively improve the safety performance of the tunnel asphalt pavement.

Description

technical field [0001] The invention belongs to the technical field of road materials, and in particular relates to an environment-friendly flame-retardant asphalt and a preparation method thereof. Background technique [0002] With the rapid development of domestic highways, more and more highway tunnels are built. Tunnel construction technology has achieved comprehensive development, but the research on pavement materials and technology in tunnel is still relatively little. Due to the advantages of comfortable driving, low noise, good skid resistance and easy maintenance, asphalt pavement is being more and more applied to tunnel pavement. However, since asphalt is a flammable material, it is combustible when exposed to open flames and high heat, and the ventilation conditions in the tunnel are poor. If a traffic accident causes the asphalt pavement to catch fire, it will often cause greater casualties and property losses. In addition, when the asphalt is on fire, a large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K13/06C08K9/04C08K3/34C08K3/22
Inventor 况栋梁侯明业董彪贺海张磊孙晓龙
Owner CHANGAN UNIV
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