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Modified asphalt applying lake asphalt and preparation method thereof

A technology of modified asphalt and production method, which is applied in building components, building insulation materials, buildings, etc., can solve problems affecting road stability, low-temperature cracking resistance, aging, environmental pollution, etc., and achieve improved cracking resistance, resistance to Enhanced oxidative properties and improved durability

Active Publication Date: 2009-06-03
国润通工程集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SBS is a synthetic rubber product. In the long-term harsh use environment, it is easily aged by the influence of the climate, thus affecting the stability of the road surface and low temperature cracking resistance.
SBS is also easy to cause environmental pollution during the artificial synthesis process

Method used

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  • Modified asphalt applying lake asphalt and preparation method thereof
  • Modified asphalt applying lake asphalt and preparation method thereof
  • Modified asphalt applying lake asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: as figure 1 As shown, 1. Heat 7 tons (t) of AH-70 matrix asphalt in the matrix storage tank to 120°C.

[0015] 2. Put 3 tons of lake bitumen into the melting tank for complete melting at 165°C.

[0016] 3. Pump the base bitumen to the mixing tank; pump the TLA lake bitumen from the melting tank to the mixing tank.

[0017] 4. Turn on the agitator of the mixing tank to stir the mixture of matrix asphalt and TLA lake asphalt for 30 minutes, while the temperature in the mixing tank is kept at 170°C.

[0018] 5. After the mixing is completed, TLA lake asphalt and base asphalt are uniformly mixed, which is qualified modified asphalt for this application of lake asphalt.

Embodiment 2

[0019] Example 2: 1. Heat 9.5t of AH-70 base asphalt in the base storage tank to 130°C.

[0020] 2. Put 0.5t of lake bitumen into the melting tank for complete melting at 175°C.

[0021] 3. Pump the base bitumen to the mixing tank; pump the TLA lake bitumen from the melting tank to the mixing tank.

[0022] 4. Turn on the agitator of the mixing tank to stir the mixture of matrix asphalt and TLA lake asphalt for 20 minutes, while the temperature in the mixing tank is kept at 170°C.

[0023] 5. After the mixing is completed, TLA lake asphalt and base asphalt are uniformly mixed, which is qualified modified asphalt for this application of lake asphalt.

Embodiment 3

[0024] Example 3: 1. Heat 2t, AH-110 base asphalt in the base storage tank to 140°C.

[0025] 2. Put 8 tons of lake bitumen into the melting tank for complete melting at 195°C.

[0026] 3. Pump the base bitumen to the mixing tank; pump the TLA lake bitumen from the melting tank to the mixing tank.

[0027] 4. Turn on the agitator of the mixing tank to stir the mixture of matrix asphalt and TLA lake asphalt for 50 minutes, while the temperature in the mixing tank is kept at 170°C.

[0028] 5. After the mixing is completed, TLA lake asphalt and base asphalt are uniformly mixed, which is qualified modified asphalt for this application of lake asphalt.

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Abstract

The invention discloses modified asphalt applying lake asphalt and a preparation method thereof. The modified asphalt is prepared by the following materials according to the following weight percentage: 20 percent to 95 percent of basic asphalt and 5 percent to 80 percent of Trinidad lake asphalt. The method comprises the following technique processes of: melting the basic asphalt at a temperature of 120 DEG C to 140 DEG C; melting the Trinidad lake asphalt at a temperature of 165 DEG C to 195 DEG C; and mixing the melted basic asphalt and the melted Trinidad lake asphalt and stirring the mixture of the basic asphalt and the Trinidad lake asphalt for 10 min to 50 min at a temperature of 165 DEG C to 195 DEG C, and the obtained mixture with even mixing is the finished product. The modified asphalt has the property of durable thickness (aging resistance), can improve the stability and bearing capacity under the condition of high temperature, improves the deformation resistance under heavy load and cracking resistance under heavy load in cold regions, has long life cycle which can reach 20 to 50 years, has excellent environment-friendly performance and can reduce pollution generated during the production of a polymer modifier.

Description

technical field [0001] The invention relates to a modified asphalt and a production method thereof, in particular to a modified asphalt using lake asphalt and a production method thereof. Background technique [0002] With the large-scale development of highway construction, the modification technology of road petroleum asphalt, especially the modified asphalt used in the pavement surface layer, has been greatly developed. The use of modified asphalt can improve the mechanical properties, high temperature stability and low temperature cracking resistance of pavement asphalt mixture. At present, SBS modified asphalt is the most widely used on the road. [0003] SBS modified asphalt is a modified asphalt formed by blending SBS rubber modifier and base asphalt in a certain proportion. It has excellent high temperature resistance but poor anti-aging performance. The working environment of the road surface changes greatly, and the high temperature and low temperature in winter ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08J3/20C04B26/26
Inventor 谢亚辉
Owner 国润通工程集团有限公司
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