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Method for preparing prefabricated slope hexagonal protection block by regenerating asphalt pavement surface layer milling material

A technology of asphalt pavement and milling materials, which is applied in excavation, plastic recycling, building insulation materials, etc. It can solve the problems of reducing the cost of pavement bricks, poor corrosion resistance and durability, and difficult maintenance and replacement, and achieves easy installation. The effects of construction and post-maintenance, reduction of project cost, and broadening of research ideas and directions

Active Publication Date: 2021-11-30
北方道路科技(辽宁)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It not only realizes the regeneration and recycling of old materials, turns waste into treasure, saves energy and protects the environment, but also significantly reduces the engineering cost of walkway bricks, and solves the maintenance and Difficult to replace, poor corrosion resistance and durability, high cost and other application problems, the economic and social benefits are extremely considerable

Method used

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  • Method for preparing prefabricated slope hexagonal protection block by regenerating asphalt pavement surface layer milling material
  • Method for preparing prefabricated slope hexagonal protection block by regenerating asphalt pavement surface layer milling material

Examples

Experimental program
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Effect test

Embodiment 1

[0040] The method for preparing the prefabricated slope hexagonal protection block by recycling asphalt pavement surface layer milling material is prepared from the following components, by weight: RAP material (0-5mm): 18.2 parts, RAP material (5-10mm ): 12.8 parts, RAP material (10-20mm): 7.5 parts, regeneration agent: 0.2 parts, fiber reinforcement: 1.4 parts, stabilizer: 1.6 parts, new asphalt: 0.68 parts, rubber powder: 2.6 parts, corrosion resistance agent: 3.5 parts, waterproof and oil-resistant agent: 1.48 parts, rosin: 0.84 parts, inorganic nano-ceramic heat-insulating coating: 1.8 parts. The regenerant is the road-specific regenerant RA-5 produced by Hubei Dingshun Petrochemical Co., Ltd. The fiber reinforcing agent is Shenzhen Haichuan De Lanite Co., Ltd. AS polyacrylonitrile fiber reinforcement. The stabilizer is lignin fiber for Kentley road. The new asphalt is road petroleum asphalt, the label is No. 90, the place of production is Liaohe, Panjin, the softenin...

Embodiment 2

[0049] The difference from Example 1 is that the components are by weight: RAP material (0-5mm): 20 parts, RAP material (5-10mm): 13.5 parts, RAP material (10-20mm): 8 parts, regeneration Agent: 0.24 parts, fiber reinforcing agent: 1.6 parts, stabilizer: 1.8 parts, new asphalt: 0.72 parts, rubber powder: 3.2 parts, corrosion-resistant agent: 4.1 parts, waterproof and oil-resistant agent: 1.52 parts, rosin: 0.94 parts, inorganic Nano-ceramic thermal insulation coating: 2.4 parts. The distribution ratio is: in step two, regeneration agent (0.07 parts), fiber reinforcement (0.8 parts), stabilizer (0.9 parts); in step three, regeneration agent (0.17 parts), fiber reinforcement (0.8 parts), stabilizer agent (0.9 parts).

Embodiment 3

[0051] The difference from Example 1 is that the components are by weight: RAP material (0-5mm): 21.5 parts, RAP material (5-10mm): 14 parts, RAP material (10-20mm): 8.5 parts, regeneration Agent: 0.25 parts, fiber reinforcing agent: 1.8 parts, stabilizer: 2 parts, new asphalt: 0.8 parts, rubber powder: 3.8 parts, corrosion-resistant agent: 4.7 parts, waterproof and oil-resistant agent: 1.58 parts, rosin: 1.1 parts, inorganic Nano-ceramic thermal insulation coating: 3 parts. The distribution ratio is: in step 2, regenerant (0.09 part), fiber reinforcing agent (0.8 part), stabilizer (0.9 part); in step 3, regenerant (0.16 part), fiber reinforcing agent (1 part), stabilizer agent (1.1 parts).

[0052] Examples 1-3 Asphalt pavement surface layer milling material recycled prefabricated slope hexagonal protection block road performance test results are shown in Table 1:

[0053] Table 1

[0054]

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Abstract

The invention belongs to the technical field of road engineering materials, and in particular relates to a method for preparing prefabricated slope hexagonal protection blocks by regenerating asphalt pavement surface layer milling materials. The technical solution is as follows: it is prepared from the following components, by weight: 18-22 parts of RAP material (0-5mm), 12-14 parts of RAP material (5-10mm), and 12-14 parts of RAP material (10-20mm) 7-9 parts, 0.2-0.25 parts of regenerant, 1-2 parts of fiber reinforcement, 1.6-2 parts of stabilizer, 0.6-0.8 parts of new asphalt, 2-4 parts of rubber powder, 3 parts of anti-corrosion agent 1 to 5 parts, 1.4 to 1.6 parts of waterproof and oil resistant agent, 0.8 to 1.2 parts of rosin, 1 to 3 parts of inorganic nano-ceramic heat-insulating coating. In the present invention, the prefabricated slope hexagonal protection blocks made by special processes such as crushing, screening, recombination and regeneration, prefabrication, and health preservation of waste milling and planing materials are extremely dense, high-strength and durable, with long service life, anti-oxidation, low-temperature anti-cracking, Strong anti-corrosion (salt corrosion) ability.

Description

technical field [0001] The invention belongs to the technical field of road engineering materials, and in particular relates to a method for preparing prefabricated slope hexagonal protection blocks by regenerating asphalt pavement surface layer milling materials. Background technique [0002] During the long-term use of asphalt pavement, due to the combined effects of heavy-duty traffic, climate and environment, its service performance will show attenuation, resulting in the indicators of functional and structural performance of asphalt pavement in some road sections failing to meet the use requirements. Remodeling and maintenance. Due to the limitation of the elevation of the road surface, the major and medium repair projects of the road surface usually adopt the method of milling the original road surface and then re-paving, resulting in a large amount of waste asphalt milling materials. [0003] If the waste milling material is discarded directly, it will not only bring...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B41/65E02D17/20C08J11/22C08L95/00
CPCC04B26/26C04B41/5076C04B41/65C04B2111/00017C08J11/22C08J2395/00E02D17/205C04B2103/61C04B24/34C04B24/42C04B2103/0068C04B16/0658C04B16/06C04B18/22C04B41/5042C04B41/4543C04B41/4507Y02W30/62
Inventor 南雪峰王毅魏国詹世佐李广满何文涛
Owner 北方道路科技(辽宁)有限公司
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