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Bituminous mixture preparation method capable of implementing warm mixing

A technology of asphalt mixture and mixture, applied in the field of road engineering, can solve the problems of increasing material cost, reducing its own performance, high price, etc., and achieving the effect of reducing material cost and production cost

Inactive Publication Date: 2019-03-22
SHANGHAI PUDONG ROAD & BRIDGE GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the most important warm mixing technology is realized by adding warm mixing agents, such as Sasobit, Evotherm, etc., which can reduce the mixing temperature of asphalt mixture by 20-40°C without reducing its own performance, but such products are expensive. Undoubtedly increased material costs

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  • Bituminous mixture preparation method capable of implementing warm mixing

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Embodiment Construction

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0023] In order to make the drawing concise, the parts related to the present invention are only schematically shown in each drawing, and they do not represent the actual structure of the product.

[0024] The present invention provides a kind of embodiment that can realize the asphalt mixture preparation method of warm mixing, refer to figure 1 shown; includes:

[0025] Step S100, stirring the coarse aggregate and asphalt under the first preset temperature condition;

[0026] S...

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Abstract

The invention discloses a bituminous mixture preparation method capable of implementing warm mixing. The bituminous mixture preparation method capable of implementing warm mixing comprises the following steps: stirring coarse aggregates and bitumen under the condition of a first preset temperature; stirring the coarse aggregates and the bitumen into a mixture with a first set viscosity; and keeping adding fine aggregates in the mixture with the first set viscosity and stirring to obtain a target mixture with set strength. According to the bituminous mixture which is prepared by warm mixing, abitumen material replaces materials such as Sasobit, Evotherm in the prior art, meanwhile, the production blending temperature of the mixture can be reduced under the condition that a warm mixing agent is not added, and a warm mixing effect is achieved.

Description

technical field [0001] The invention relates to road engineering technology, in particular to a method for preparing asphalt mixture capable of realizing warm mixing. Background technique [0002] Warm Mix Asphalt (WMA) is a "green" asphalt mixture, its production temperature is between hot mix asphalt and cold mix asphalt, while maintaining The road performance is basically the same as that of hot mix asphalt mixture. The mixing temperature of traditional Hot Mix Asphalt (Hot Mix Asphalt, HMA) is 150°C to 160°C (170°C to 190°C for modified asphalt). The mixing temperature of WMA can be lowered by 20-40°C. Practice has proved that the use of warm mixing technology can save 20-30% of fuel, while greatly reducing the smoke and harmful gases (including COX, SOX, NOX, etc.) generated during the production and construction of asphalt mixture. [0003] At present, the most important warm mixing technology is realized by adding warm mixing agents, such as Sasobit, Evotherm, etc....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26
CPCC04B26/26C04B14/28C04B14/14
Inventor 李交粘本鹏石剑郑伟孙天鸿张波尤强陆宇峰黄存行李烨东李俊
Owner SHANGHAI PUDONG ROAD & BRIDGE GRP CO LTD
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