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High-viscosity asphalt and preparation method thereof

A technology of high-viscosity asphalt and matrix asphalt, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of uneven product quality, limited application of drainage pavement, and high price, so as to reduce processing difficulty and improve asphalt The effect of insufficient adhesion and difficulty in segregation

Inactive Publication Date: 2018-08-17
甘肃路桥善建科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the high-viscosity asphalt used in my country is mainly imported, which is not only expensive but also has uneven product quality, which has greatly restricted the promotion and application of drainage pavements.

Method used

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  • High-viscosity asphalt and preparation method thereof
  • High-viscosity asphalt and preparation method thereof
  • High-viscosity asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 A high-viscosity asphalt is composed of the following raw materials in weight percentage (kg / kg): 3.2% styrene-butadiene-styrene block copolymer (SBS), styrene-butadiene rubber ( SBR) 2.4%, compatibilizer 2.3%, stabilizer 0.08%, sodium dodecyl sulfonate 2%, polyphosphoric acid (PPA) 1.5%, No. 70 base asphalt 88.52%.

[0033] The preparation method of this high-viscosity asphalt comprises the following steps:

[0034] (1) Weighing according to the proportion;

[0035] (2) Heat and melt the base asphalt at 135°C, raise the temperature to 150°C, add a compatibilizer, stir at a speed of 100r / min for 5 minutes to mix evenly, and obtain mixture A;

[0036] (3) Heat up mixture A to 160°C, add styrene-butadiene-styrene block copolymer (SBS), styrene-butadiene rubber (SBR), sodium dodecylsulfonate, polyphosphoric acid (PPA), and heat at 200r Stir for 10 minutes at a speed of 1 / min, make it fully swell and mix evenly, and obtain mixture B;

[0037] (4) Mixture B is s...

Embodiment 2

[0040] Example 2 A high-viscosity asphalt is composed of the following raw materials in weight percentage (kg / kg): styrene-butadiene-styrene block copolymer (SBS) 4.1%, styrene-butadiene rubber ( SBR) 2%, compatibilizer 3.4%, stabilizer 0.1%, sodium dodecyl sulfonate 1.6%, polyphosphoric acid (PPA) 1.3%, No. 70 base asphalt 29.2%, No. 90 base asphalt 58.3%.

[0041] The preparation method of this high-viscosity asphalt comprises the following steps:

[0042] (1) Weighing according to the proportion;

[0043] (2) Heat and melt the base asphalt at 135°C, heat up to 150°C, add compatibilizer, stir at a speed of 100r / min for 6 minutes to mix evenly, and obtain mixture A;

[0044] (3) Heat up mixture A to 160°C, add styrene-butadiene-styrene block copolymer (SBS), styrene-butadiene rubber (SBR), sodium dodecylsulfonate, polyphosphoric acid (PPA), and heat at 200r Stir for 10 minutes at a speed of 1 / min, make it fully swell and mix evenly, and obtain mixture B;

[0045] (4) Mixtu...

Embodiment 3

[0048] Example 3 A high-viscosity asphalt, the high-viscosity asphalt is composed of the following raw materials in weight percentage (kg): styrene-butadiene-styrene block copolymer (SBS) 4.7%, styrene-butadiene rubber (SBR) 1.8%, compatibilizer 3.7%, stabilizer 0.2%, sodium dodecyl sulfonate 1.4%, polyphosphoric acid (PPA) 1.2%, No. 70 base asphalt 17.4%, No. 90 base asphalt 69.6%.

[0049] The preparation method of this high-viscosity asphalt comprises the following steps:

[0050] (1) Weighing according to the proportion;

[0051] (2) Heat and melt the base asphalt at 135°C, raise the temperature to 150°C, add a compatibilizer, stir at a speed of 100r / min for 8 minutes to mix evenly, and obtain mixture A;

[0052] (3) Heat up mixture A to 160°C, add styrene-butadiene-styrene block copolymer (SBS), styrene-butadiene rubber (SBR), sodium dodecylsulfonate, polyphosphoric acid (PPA), and heat at 200r Stir for 10 minutes at a speed of 1 / min, make it fully swell and mix evenly,...

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Abstract

The present invention relates to high-viscosity asphalt. The high-viscosity asphalt is composed of the following raw materials in percentages by weight: 3-8% of a styrene-butadiene-styrene block copolymer (SBS), 1-3% of styrene-butadiene rubber (SBR), 2-10% of a compatibilizer, 0.08-0.3% of a stabilizer, 0.5-2% of sodium dodecyl sulfate, 0.8%-1.5% of polyphosphoric acid (PPA) and the balance of matrix asphalt. At the same time, the present invention also discloses a preparation method of the high-viscosity asphalt. The high-viscosity asphalt provided by the present invention has excellent performance, can satisfy high-viscosity and high-elastic properties, can satisfy simplification of production and construction, and has low costs.

Description

technical field [0001] The invention relates to the field of road engineering design, in particular to a high-viscosity asphalt and a preparation method thereof. Background technique [0002] With the rapid development of the national economy and the increase of road mileage and grade, the road traffic volume has also increased rapidly, which inevitably caused different degrees of road noise pollution to the environment. In particular, the noise pollution of urban roads is becoming more and more serious. How to reduce the noise pollution of urban roads is an urgent problem in modern cities; in addition, the urban roads in our country adopt the traditional construction mode, and the city is seriously waterlogged every time it rains heavily; it is the most practical way to solve the above two problems at the same time A feasible method is to lay noise-reducing drainage pavement (OGFC and Nova Chip ultra-thin wear layer, etc.), which can not only improve the problem of water ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L9/06C08L91/00C08K13/04C08K5/42C08K3/32C08K3/06C08K3/04C08K7/12C08K3/26
CPCC08K2003/265C08K2003/329C08L95/00C08L2205/025C08L2205/035C08L53/02C08L9/06C08L91/00C08K13/04C08K5/42C08K3/32C08K3/06C08K3/04C08K7/12C08K3/26
Inventor 王兆力王攀龙窦晖张星宇
Owner 甘肃路桥善建科技有限公司
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