Processing device for modified asphalt and application method thereof

A processing device and modified asphalt technology, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of incomplete crosslinking reaction, insufficient grinding, loose road surface, etc., so as to ease the environmental process conditions and reduce production costs , The effect of improving the road surface quality

Pending Publication Date: 2018-06-15
QINGHAI HONGCHUAN XINYUAN INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rubber powder makes the cement sticky at high temperature and the thickness of the mixture is thinner, the aggregate in the mixture is thicker, and the direct contact between the stones makes it more difficult to compact
Among them, the rubber mill is the key to the whole process. The grinding of base asphalt and auxiliary agents containing rubber powder is not sufficient, resulting in incomplete crosslinking reaction, and the pavement after construction is prone to looseness, pits and other diseases.

Method used

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  • Processing device for modified asphalt and application method thereof
  • Processing device for modified asphalt and application method thereof
  • Processing device for modified asphalt and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The rubber powder is used for SBS modified asphalt, which specifically includes the following steps, S1, heating the asphalt to 160°C, dehydrating for use, S2, adding additives, the additives are dithioether alcohol: butyl octyl salt: AEO3: barium sulfate: AEO9 is prepared according to the following weight ratio of 30:20:30:10:10, adding SBS modifier, the dosage of the SBS modifier is 5%, adding rubber powder, the rubber powder is selected with a particle size of 80 mesh Desulfurize 60% of the rubber powder particles, add 0.1% polyether polyol, stir and swell, S3, pump into the colloid mill for grinding, then pour into the development tank for low-speed stirring at 4000r / min, stir for 20min, add stabilizer.

[0066] The content of rubber powder mixed into the base asphalt is 15-20%.

Embodiment 2

[0068] The rubber powder is used for SBR modified asphalt, which specifically includes the following steps, S1, heating the asphalt to 140°C, dehydrating for use, S2, adding additives, the additives are dithioether alcohol: butyl octyl salt: AEO3: barium sulfate: AEO9 is prepared according to the following weight ratio of 30:20:30:10:10, adding SBS modifier, the dosage of the SBS modifier is 5%, adding rubber powder, the rubber powder is selected with a particle size of 80 mesh Desulfurize 60% of the rubber powder particles, add 0.1% polyether polyol, stir and swell, S3, pump into the colloid mill for grinding, then pour into the development tank for low-speed stirring at 4000r / min, stir for 20min, add stabilizer.

[0069] The content of rubber powder mixed into the base asphalt is 15-20%.

Embodiment 3

[0071] The rubber powder is used for SBS / SBR composite modified asphalt, which specifically includes the following steps, heating the asphalt to 150°C, dehydrating for use, S2, adding additives, the additives are dithioether alcohol: butyl octyl salt: AEO3: barium sulfate : AEO9 is prepared according to the following weight ratio 30:20:30:10:10, adding SBS modifier, the dosage of the SBS modifier is 5%, adding SBR modifier, the SBR modifier The dosage is 5%, and rubber powder is added. The rubber powder is made of 60% desulfurized rubber powder particles with a particle size of 80 meshes, and 0.1% polyether polyol is added, stirred and swelled, and S3 is pumped into a colloid mill for grinding and then injected into the development The tank is stirred at a low speed, the speed is 4000r / min, stirred for 20min, and the stabilizer is added.

[0072] The content of rubber powder mixed into the base asphalt is 15-20%.

[0073]

[0074] From the comparison table of modified asph...

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Abstract

The invention discloses a processing device for modified asphalt, and relates to asphalt roads. The invention is to solve the following problems in the prior art: matrix asphalt containing rubber powder and auxiliary agents are incompletely ground, so a cross-linking reaction is incomplete; and onstructed pavements easily generate distresses like loosening and potholes. The processing device comprises a rubber grinding machine which comprises a mounting support seat, a horizontal motor located at the left part of the mounting support seat, a grinding device located at the right part of the mounting support seat, a motor rotating shaft and cooling water pipe joints, wherein the grinding device and the horizontal motor are connected through the motor rotating shaft; the left and right sidesof the grinding device are respectively connected with a cooling water pipe joint; and the grinding device comprises: a grinding disc shell; a feeding inlet, a feeding channel and a discharge channel,which are located above the grinding disc shell; a discharge outlet and a mixing cavity, which are located below the grinding disc shell; and a grinding structure, which is arranged in the interior of the mixing cavity. With a technical scheme of the invention, the matrix asphalt containing 15 to 20% of rubber powder and the auxiliary agents are completely ground, so the cross-linking reaction iscomplete.

Description

technical field [0001] The invention relates to asphalt roads, in particular to a modified asphalt processing device and its application method. Background technique [0002] When laying roads, especially on plateaus, high temperature stability, low temperature crack resistance, ductility, viscous toughness, tensile strength and water peeling ability of asphalt are highly required. However, when ordinary asphalt is used for laying roads on plateaus with harsh weather conditions, its performance is far from meeting the requirements. In the hot summer, ordinary asphalt paved roads are often muddy due to the strong ultraviolet radiation on the plateau, and the roads will freeze and crack in the cold winter. Vehicle driving is very unsafe. [0003] Patent document 200710048460.1 discloses the proportioning method and production process of SBR road modified asphalt. The styrene-butadiene rubber (SBR), the copolymer SBR of butadiene and styrene is blended into the asphalt in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L9/06C08L53/02C08K3/30
CPCC08L95/00C08K2003/3045C08L2205/03C08L2205/035C08L21/00C08L53/02C08K3/30C08L9/06
Inventor 王钢
Owner QINGHAI HONGCHUAN XINYUAN INDAL
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