Method for preparing prefabricated kerbs through asphalt pavement surface layer milling material regeneration

A technology for asphalt pavement and milling material, which is applied in the direction of side ditch/curb stone, road, road, etc., can solve the problems of reducing the cost of curb stone engineering, poor corrosion resistance and durability, difficult maintenance and replacement, etc., to save The effect of sand and gravel materials and asphalt resources, excellent salt corrosion resistance, easy installation, construction and post-maintenance

Active Publication Date: 2019-10-25
LIAONING NEW DEV HIGHWAY TECH MAINTENANCE CO LTD
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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 curbs, and solves the difficulty of maintenance and replacement of conventional curbs (concrete curbs, granite curbs). Poor corrosion 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 kerbs through asphalt pavement surface layer milling material regeneration
  • Method for preparing prefabricated kerbs through asphalt pavement surface layer milling material regeneration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for preparing prefabricated curbs by regenerating asphalt pavement surface milling material, which is prepared from the following components, by weight: 30 parts of RAP material (0-5mm), 30 parts of RAP material (5-10mm) , 20 parts of RAP material (10-20mm), 0.5 parts of regeneration agent, 8 parts of fiber reinforcement, 6 parts of stabilizer, 2 parts of new asphalt, 8 parts of rubber powder, 20 parts of corrosion resistance agent, 2.5 parts of waterproof and oil resistance agent, rosin 5.2 parts and 7.5 parts of inorganic nano-ceramic thermal insulation coating. 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 softening point is ≥ 45°C...

Embodiment 2

[0049] The difference from Example 1 is that the components are by weight: 35 parts of RAP material (0-5mm), 38 parts of RAP material (5-10mm), 25 parts of RAP material (10-20mm), 0.3 part of regeneration agent , 4.2 parts of fiber reinforcing agent, 4.6 parts of stabilizer, 2.3 parts of new asphalt, 12 parts of rubber powder, 22 parts of corrosion resistant agent, 2.8 parts of waterproof and oil resistant agent, 6.5 parts of rosin, 8 parts of inorganic nano-ceramic thermal insulation coating. The distribution ratio is: in step two, regeneration agent (0.1 parts), fiber reinforcement (2 parts), stabilizer (2.2 parts); in step three, regeneration agent (0.2 parts), fiber reinforcement (2.2 parts), stabilizer agent (2.4 parts).

Embodiment 3

[0051] The difference from Example 1 is that the components are by weight: RAP material (0-5mm): 42 parts, RAP material (5-10mm) 40 parts, RAP material (10-20mm) 28 parts, regeneration agent 0.33 6 parts, 6 parts of fiber reinforcement, 5 parts of stabilizer, 3.5 parts of new asphalt, 15 parts of rubber powder, 25 parts of anti-corrosion agent, 3 parts of waterproof and oil-resistant agent, 7.2 parts of rosin, 10 parts of inorganic nano-ceramic thermal insulation coating. The distribution ratio is: in step two, regeneration agent (0.1 parts), fiber reinforcement (2.2 parts), stabilizer (2.3 parts); in step three, regeneration agent (0.23 parts), fiber reinforcement (3.8 parts), stabilizer agent (2.7 parts).

[0052] Examples 1-3 Asphalt pavement surface layer milling material recycled prefabricated curb road performance testing 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 particularly relates to a method for preparing prefabricated kerbs through asphalt pavement surface layer milling material regeneration. According to the following technical scheme, the prefabricated kerbs are prepared from the following components in parts by weight: 30-50 parts of an RAP material (0-5 mm), 30-40 parts of an RAP material (5-10 mm), 20-30 parts of an RAP material (10-20 mm), 0.2-0.55 part of a regenerative agent, 3.5-8 parts of a fiber enhancer, 4-6 parts of a stabilizer, 2-5 parts of new asphalt,8-15 parts of rubber powder, 20-25 parts of a corrosion-resistant agent, 2.5-3 parts of a waterproof and anti-oil agent, 5.2-8 parts of rosin and 5-10 parts of inorganic nano-ceramic heat-insulation coating. The prefabricated kerbs prepared in the mode that waste milling materials are subjected to special processes such as crushing, screening, recombinant regeneration, prefabrication and curing are extremely compact, high in strength, durable, long in service life, and high in oxidation resistance, low-temperature cracking resistance and corrosion (salt corrosion) prevention capacity.

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 curbstones 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 environmental pollutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26E01C11/22C04B111/20
CPCC04B26/26E01C11/221C04B2111/00017C04B2201/50C04B2111/20C04B18/167C04B16/0658C04B18/26C04B18/22C04B14/22C04B24/42C04B24/34C04B14/306C04B14/02C04B2103/0068
Inventor 孙立平王毅温宇宁李广满高诚隋俊杨德龙
Owner LIAONING NEW DEV HIGHWAY TECH MAINTENANCE CO LTD
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