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Warm-mixed rubberized asphalt mixture and preparation method thereof

A rubber asphalt and mixture technology, which is applied in climate change adaptation, construction, roads, etc., can solve the problems of rubber asphalt mixtures that are not easy to compact, and achieve the effects of reducing aging, reducing fuel consumption, and simplifying production procedures

Inactive Publication Date: 2012-11-28
SHENZHEN OCEANPOWER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to achieve the purpose of warm-mixing rubber asphalt and solve the problem that the rubber-asphalt mixture is not easy to compact, the invention provides a warm-mix rubber-asphalt mixture and a preparation method thereof. The warm-mix rubber-asphalt mixture effectively reduces the mixing of rubber asphalt Temperature, for this reason the present invention adopts following technical scheme:

Method used

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  • Warm-mixed rubberized asphalt mixture and preparation method thereof
  • Warm-mixed rubberized asphalt mixture and preparation method thereof
  • Warm-mixed rubberized asphalt mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 9900g of aggregate, heat it to 145°C and dry it, add it to the mixing pot, keep the temperature in the mixing pot at 140°C, take 500g of rubber asphalt and heat it to 185°C, add it to the mixing pot, sprinkle 31.5g of warm mixing agent on the rubber For the surface of asphalt, stir in the mixing pot for 140s, add 100g of ore powder into the mixing pot, and stir for 90s, wherein 25% of the weight of the ore powder is slaked lime, and put the mixed material out of the pot at 150°C , and molded at 135°C to obtain warm-mix rubber asphalt mixture.

Embodiment 2

[0030] Take 9333g of aggregate, heat it to 140°C and dry it, add it to the mixing pot, keep the temperature in the mixing pot at 135°C, take 778g of rubber asphalt and heat it to 180°C, add it to the mixing pot, sprinkle 31.7g of warm mixing agent on the rubber For the surface of asphalt, stir in the mixing pot for 120s, add 389g of ore powder into the mixing pot, and stir for 93s, take the mixed material out of the pot at 140°C, and mold it at 132°C to obtain warm-mix rubber asphalt Mixture.

Embodiment 3

[0032] Take 10286g of aggregate, heat it to 146°C and dry it, add it to the mixing pot, keep the temperature in the mixing pot at 138°C, take 536g of rubber asphalt and heat it to 190°C, add it to the mixing pot, sprinkle 33.7g of warm mixing agent on the rubber For the surface of asphalt, stir in the mixing pot for 133s, add 429g of ore powder into the mixing pot, and stir for 91s, wherein 25% of the weight of the ore powder is slaked lime, and the mixed material after stirring is taken out of the pot at 143°C , and molded at 130°C to obtain warm-mix rubber asphalt mixture.

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Abstract

The invention discloses a warm-mixed rubberized asphalt mixture and a preparation method thereof. The warm-mixed rubberized asphalt mixture comprises rubberized asphalt, aggregates, mineral powder and a warm-mixed agent; the warm-mixed agent is inorganic aluminosilicate with moisture content of 18-23%; and through taking the weight part of the rubberized asphalt as one part, the warm-mixed rubberized asphalt mixture comprises 10-20 parts of aggregates, 0.15-1 part of mineral powder and 0.02-0.08 part of warm-mixed agent. Meanwhile, the invention also discloses a preparation method of the warm-mixed rubberized asphalt mixture; and in the method, the adding sequence, control temperature and mixing time of each material are described in detail. The warm-mixed rubberized asphalt mixture disclosed by the invention effectively reduces the mixing temperature of the rubberized asphalt, solves the problem that a rubberized asphalt mixture is uneasy to compact, reduces the consumption of fuel and the emission of harmful gas, reduces the damages on the environment and the health hazards on the construction personnel, and facilitates the stored production.

Description

【Technical field】 [0001] The invention belongs to the technical field of road engineering materials, and relates to an asphalt mixture and a preparation method thereof. 【Background technique】 [0002] In recent years, rubber asphalt mixture has been widely used and promoted in the world due to its good road performance, and it can also solve the recycling of waste tires, make waste tire rubber resources, and solve black pollution. In the 1990s, some countries began to study and apply it. High-grade roads and urban highways paved with rubber-modified asphalt in the United States have a history of more than 30 years. After the United States, Britain, France, Germany, South Korea, Canada and my country's Taiwan Province have also established laws one after another to start laying rubber-modified asphalt pavement. In recent years, people have further improved their understanding of environmental protection and resource recycling, and actively carried out the research and appli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B22/08E01C7/22
CPCY02A30/30
Inventor 李志英何唯平
Owner SHENZHEN OCEANPOWER NEW MATERIALS TECH
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