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Processing technology for rock asphalt modified asphalt by adopting oil grinding method

A technology of modified asphalt and processing technology, applied in building components, building insulation materials, buildings, etc., can solve problems such as destroying the activity of rock asphalt, and achieve the effect of reducing carbonization, obvious effect and convenient operation.

Inactive Publication Date: 2018-03-13
湖北正康科技创新有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above existing problems in the prior art, and propose a processing technology of rock asphalt modified asphalt oil grinding method, and solve the technical problem of high temperature processing destroying the activity of rock asphalt in the prior art

Method used

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  • Processing technology for rock asphalt modified asphalt by adopting oil grinding method

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Effect test

Embodiment 1

[0018] A processing technology of rock asphalt modified asphalt oil grinding method, comprising the following steps:

[0019] (1) Break rock asphalt to a particle size of less than 3mm, dehydrate and activate it at 140°C, and control the dehydration

[0020] The water content in rock asphalt is 5%, and the carbonization phenomenon cannot be found by naked eyes;

[0021] (2) The asphalt treated in step (1) was fused with the base asphalt at a low temperature of 140°C for 15 minutes to obtain the asphalt modified asphalt;

[0022] (3) The asphalt-modified asphalt prepared in step (2) is shear-milled at a shear speed of 1000-1500 rpm at 140°C until the fineness is below -100 mesh.

Embodiment 2

[0024] A processing technology of rock asphalt modified asphalt oil grinding method, comprising the following steps:

[0025] (1) Break rock asphalt to a particle size of less than 3mm, dehydrate and activate it at 145°C, and control the dehydration

[0026] The water content in rock asphalt is 4%, and the carbonization phenomenon cannot be found by naked eyes;

[0027] (2) The asphalt treated in step (1) was fused with the base asphalt at a low temperature of 145°C for 16 minutes to obtain the asphalt-modified asphalt;

[0028] (3) The asphalt-modified asphalt prepared in step (2) is shear-milled at a shear speed of 1000-1500 rpm at 145°C until the fineness is below -100 mesh.

Embodiment 3

[0030] A processing technology of rock asphalt modified asphalt oil grinding method, comprising the following steps:

[0031] (1) Crushing rock asphalt to a particle size of less than 3mm, dehydrating and activating it at 149°C, and controlling the dehydration

[0032] The water content in rock asphalt is 3.5%, and the carbonization phenomenon cannot be found by naked eyes;

[0033] (2) The asphalt treated in step (1) was fused with the base asphalt at a low temperature of 149°C for 17 minutes to obtain the asphalt-modified asphalt;

[0034] (3) The asphalt-modified asphalt prepared in step (2) is shear-milled at a shear speed of 1000-1500 rpm at 149°C until the fineness is below -100 mesh.

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Abstract

The invention provides a processing technology for rock asphalt modified asphalt by adopting an oil grinding method. The processing technology comprises the following steps: (1) crushing, dehydratingand activating rock asphalt; (2) melting the rock asphalt treated by step (1) and matrix asphalt at low temperature of 140 DEG C to 149 DEG C, so as to obtain the rock asphalt modified asphalt; (3) cutting and grinding the rock asphalt modified asphalt prepared by step (2) at 140 DEG C to 149 DEG C until the fineness is -100 meshes or lower. A whole technological process of the rock asphalt modified asphalt is carried out under a low-temperature blending condition; the activity of the rock asphalt is preserved to the greatest extent when the rock asphalt is processed at low temperature and thecarbonization effect, caused by high temperature, on the asphalt matrix is reduced. The processing technology provided by the invention has the advantages of simple preparation technology and convenience for operation and the performance of the modified asphalt is good, so that the processing technology is suitable for being widely popularized.

Description

technical field [0001] The invention relates to rock bitumen modified mixing technology, in particular to a rock bitumen modified bitumen oil grinding method processing technology. Background technique [0002] Bitumen is a material commonly used in the preparation of paving and roofing materials. In the road-building and road-laying industries, it is a well-established and practical method to coat aggregate materials, such as sand, gravel, crushed stone, or mixtures thereof, with hot fluid bitumen and apply the coated material to the roadbed or The previously constructed road is laid in a uniform layer and rolled by a heavy-duty roller to compact the uniform layer to form a smooth-surfaced road. [0003] The combination of bitumen and aggregate material such as sand, gravel, crushed stone or mixtures thereof is known as "asphalt concrete". Bitumen, also known as "asphalt binder," is usually a liquid binder that contains bitumen, resins, and oils. It can occur naturally, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00
CPCC08L95/00C08L2205/025
Inventor 李亚非沈峻庆葛章顺张承冯俊
Owner 湖北正康科技创新有限公司
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