Warm mix flame-retardant modified asphalt and preparation method thereof

A technology of modified asphalt and flame retardant modifier, which is applied in the direction of building insulation materials, building components, buildings, etc., which can solve the problems of reduced structural bearing capacity, impact on traffic environment, and difficulty in dissipation, and achieve high flame retardancy and smoke suppression Performance, reduction of flue gas emissions, and reduction of production energy consumption

Active Publication Date: 2010-09-01
SHENZHEN OCEANPOWER NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of my country's economy in recent years and the improvement of my country's large-scale road construction technology, people have gradually realized that there are joints in the cement concrete road surface, and the surface is uneven, causing bumpy driving, poor comfort, long construction period, and difficult maintenance. Poor wear resistance and poor surface skid resistance cause traffic accidents in the tunnel. It is measured that the cement concrete pavement in the tunnel is in a wet state, and its friction coefficient is only 40% of the dry state, which is 25% of the asphalt concrete; because the tunnel is relatively closed The tubular structure, the noise inside the tunnel is higher than the noise outside the tunnel, and the noise resonates and superimposes in the tunnel, which makes the noise...

Method used

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  • Warm mix flame-retardant modified asphalt and preparation method thereof

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Effect test

Embodiment 1

[0031] Take by weight 85 parts of polymer modified asphalt SBS (I-A), 15 parts of warm mixing flame retardant modifier;

[0032] Warm mix flame retardant composition ratio:

[0033] Warming agent EC-120: 3 parts; decabromodiphenyl ether: 4 parts; antimony trioxide: 2 parts; hydrated magnesium silicate: 5 parts; other additives: 10 parts.

[0034] Other additives are smoke-suppressing and flame-retardant additives, which are one of silicon dioxide, iron oxide, calcium oxide or a combination thereof.

[0035] Melting polymer-modified asphalt: heat the above-mentioned polymer-modified asphalt to 100°C to reach a molten state, stir for 20 minutes to dehydrate it, and then heat it and keep it at 150°C;

[0036] Add warm-mix flame retardant modifier: Add the warm-mix flame retardant modifier to the polymer modified asphalt obtained above, and stir while adding, and the order of addition is organic viscosity reducer, decabromobiphenyl, three Antimony oxide, hydrated magnesium silic...

Embodiment 2

[0038] Take by weight 90 parts of polymer modified asphalt SBS (I-A), 10 parts of warm mixing flame retardant;

[0039] Warm mix flame retardant composition:

[0040] Warming agent EC-120: 2 parts; decabromodiphenyl ether: 5 parts; antimony trioxide: 3 parts; hydrated magnesium silicate: 6 parts; other additives: 15 parts.

[0041] Other additives are smoke-suppressing and flame-retardant additives, which are one of silicon dioxide, iron oxide, calcium oxide or a combination thereof.

[0042] Melting polymer-modified asphalt: heat the above-mentioned polymer-modified asphalt to 110°C to reach a molten state, stir for 15 minutes to dehydrate it, and then heat it and keep it at 145°C;

[0043] Add warm-mix flame retardant modifier: Add the warm-mix flame retardant modifier to the polymer modified asphalt obtained above, and stir while adding, and the order of addition is organic viscosity reducer, decabromobiphenyl, three Antimony oxide, hydrated magnesium silicate, and smoke-...

Embodiment 3

[0045] Take by weight 85 parts of polymer modified asphalt SBS (I-B), 15 parts of warm mixing fire retardant;

[0046] Warm mix flame retardant composition:

[0047] Warming agent EC-120: 1 part; decabromodiphenyl ether: 6 parts; antimony trioxide: 4 parts; hydrated magnesium silicate: 7 parts; other additives: 10 parts;

[0048] Other additives are smoke-suppressing and flame-retardant additives, which are one of silicon dioxide, iron oxide, calcium oxide or a combination thereof.

[0049] Melting polymer-modified asphalt: heat the above-mentioned polymer-modified asphalt to 115°C to reach a molten state, stir for 10 minutes to dehydrate it, and then heat it and keep it at 150°C;

[0050] Add warm-mix flame retardant modifier: Add the warm-mix flame retardant modifier to the polymer modified asphalt obtained above, and stir while adding, and the order of addition is organic viscosity reducer, decabromobiphenyl, three Antimony oxide, hydrated magnesium silicate and smoke-sup...

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Abstract

The invention discloses a warm mix flame-retardant modified asphalt and a preparation method thereof. The method comprises the following steps of: heating polymer modified asphalt to the temperature of between 100 and 120 DEG C into a melting state, stirring to dehydrate the asphalt, and heating and maintaining the polymer modified asphalt at the temperature of between 140 and 150 DEG C; adding warm mix flame-retardant modifiers into the polymer modified asphalt, adding with stirring, wherein the adding order is an organic viscosity reducer, a decabromodiphenyl oxide, an antimonous oxide, a hydrated magnesium silicate and a smoke-suppressing flame-retardant assistant in turn, and stirring for about 30 to 40 minutes, wherein in the process of adding and stirring, the temperature of the polymer modified asphalt is controlled between 140 and 150 DEG C; and finally, obtaining the warm mix flame-retardant modified asphalt. The warm mix flame-retardant modified asphalt can reduce the construction temperature of asphalt concrete, reduce the production energy consumption, save the production cost, reduce the smoke emissions in the construction of the asphalt concrete, and improve the construction environments, and has higher flame retardance and smoke suppression performance.

Description

technical field [0001] The invention relates to a modified asphalt, in particular to a warm-mix flame-retardant modified asphalt. [0002] The invention also relates to a preparation method of the warm-mix flame-retardant modified asphalt. Background technique [0003] With the development of my country's economy in recent years and the improvement of my country's large-scale road construction technology, people have gradually realized that there are joints in the cement concrete road surface, and the surface is uneven, causing bumpy driving, poor comfort, long construction period, and difficult maintenance. Poor wear resistance and poor surface skid resistance cause traffic accidents in the tunnel. It is measured that the cement concrete pavement in the tunnel is in a wet state, and its friction coefficient is only 40% of the dry state, which is 25% of the asphalt concrete; because the tunnel is relatively closed The tubular structure, the noise inside the tunnel is higher t...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08K13/02C08K5/06C08K3/22C08K3/34C08K3/36C04B26/26
Inventor 慕为民何唯平
Owner SHENZHEN OCEANPOWER NEW MATERIALS TECH
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