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

A technology for asphalt pavement and milling material, which is used in excavation, plastic recycling, building insulation materials, etc., can solve the problems of reducing the cost of the pavement brick project, poor corrosion resistance and durability, difficult maintenance and replacement, etc., to achieve easy installation. Construction and post-maintenance, reduction of project cost, considerable economic and social benefits

Active Publication Date: 2019-11-15
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 hexagonal slope protection block by regenerating asphalt pavement surface milling materials
  • Method for preparing prefabricated hexagonal slope protection block by regenerating asphalt pavement surface milling materials

Examples

Experimental program
Comparison scheme
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 concretely relates to a method for preparing a hexagonal slope protection block by regenerating asphalt pavement surfacemilling materials. The prefabricated hexagonal slope protection block is prepared from, by weight, 18-22 parts of an RAP material (0-5 mm), 12-14 parts of an RAP material (5-10 mm), 7-9 parts of an RAP material (10-20 mm), 0.2-0.25 part of a regenerant, 1-2 parts of a fiber reinforcing agent, 1.6-2 parts of a stabilizer, 0.6-0.8 part of new asphalt, 2-4 parts of gum powder, 3-5 parts of an anticorrosive agent, 1.4-1.6 parts of a water and oil resistant agent, 0.8-1.2 part of rosin and 1-3 parts of an inorganic nano-ceramic heat insulation coating. The prefabricated hexagonal slope protectionblock prepared by crushing, screening, rebuilding, prefabricating and curing the waste milling material has the advantages of high compactness, high strength, durableness, long service life, and strong ability to resist oxidation, low temperature crack and erosion (salt erosion).

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 Applications(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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