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Recycled pavement base material and construction method thereof

A technology of base material and recycled pavement, applied in roads, roads, buildings, etc., can solve the problem of low utilization rate of road milling waste materials

Inactive Publication Date: 2021-04-09
赵文政 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As far as the current situation is concerned, the utilization rate of pavement milling waste in my country is low. At present, it is urgent to design a kind of mixture that can reuse the asphalt surface milling material and pavement base milling material at the same time, and the construction The equipment and process need to be simple and reliable. At the same time, the quality of the mixture should meet the current specification requirements and not be lower than the current mainstream pavement base material cement stabilized gravel mixture.

Method used

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  • Recycled pavement base material and construction method thereof
  • Recycled pavement base material and construction method thereof
  • Recycled pavement base material and construction method thereof

Examples

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Embodiment 1

[0037] This embodiment provides a kind of regenerated pavement base material, and its raw material comprises base material, cement and water, and wherein, base material comprises asphalt surface layer milling material, cement stabilized crushed stone milling material and new aggregate, base material, cement quality The ratio is 100:3.0. Through the indoor heavy-duty compaction test, the optimum water content is determined to be 6.2%, and the proportion of new aggregate in the base material is 10. The amount of milling material for asphalt surface layer and cement stabilized crushed stone milling material is roughly equal, and the particle size distribution of the milling material is shown in Table 4; the particle size of the new aggregate is 9.5-31.5mm, and the specific parameter requirements are shown in Table 2 ; Cement is retarded cement, see Table 1 for specific requirements.

[0038] This embodiment also provides a construction method for recycled pavement base materials,...

Embodiment 2

[0040]This embodiment provides a kind of regenerated pavement base material, and its raw material comprises base material, cement and water, and wherein, base material comprises asphalt surface layer milling material, fly ash crushed stone milling material and new aggregate, base material, cement quality The ratio is 100:3.0. Through the indoor heavy-duty compaction test, the optimum water content is determined to be 5.4%, and the proportion of new aggregate in the base material is 20%. The amount of milling material for asphalt surface layer and cement stabilized crushed stone milling material is roughly equal, and the particle size distribution of milling material is shown in Table 4; the particle size of the new aggregate is 4.75-9.5mm, and the specific parameter requirements are shown in Table 2 ; Cement is retarded cement, see Table 1 for specific requirements.

[0041] This embodiment also provides a construction method for recycled pavement base materials, which uses th...

Embodiment 3

[0043] This embodiment provides a kind of regenerated pavement base material, and its raw material comprises base material, cement and water, and wherein, base material comprises asphalt surface layer milling material, cement stabilized crushed stone milling material and new aggregate, base material, cement The mass ratio is 100:3.0. Through the indoor heavy-duty compaction test, it is determined that the optimum water content is 6.0%, and the proportion of new aggregate in the base material is 11%. The amount of milling material for asphalt surface layer and cement stabilized crushed stone milling material is roughly equal, and the particle size distribution of milling material is shown in Table 4; the particle size of the new aggregate is 4.75-9.5mm, and the specific parameter requirements are shown in Table 2 ; Cement is retarded cement, see Table 1 for specific requirements.

[0044] This embodiment also provides a construction method for recycled pavement base materials, ...

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Abstract

The invention discloses a recycled pavement base material and a construction method thereof, and relates to the technical field of road engineering. Raw materials of the recycled pavement base material comprise a base material, cement and water, the base material comprises a milling material and a new aggregate, the mass ratio of the base material to the cement to the water is 100: 2.0-4.0: 4.5-7, the new aggregate accounts for 10-20% of the base material, and the milling material is selected from at least one of an asphalt surface layer milling material and a pavement base layer milling material. According to the construction method of the recycled pavement base material, the raw materials of the recycled pavement base material are mixed and paved, the asphalt surface layer milling material and the pavement base layer milling material are utilized to a greater extent, parameters such as the structural strength of a final pavement base layer can meet the design requirements, and the recycled pavement base material is an energy-saving and environment-friendly material in the true sense.

Description

technical field [0001] The invention relates to the technical field of road engineering, and in particular to a recycled pavement base material and a construction method thereof. Background technique [0002] During the construction of traffic roads, a large number of waste pavement base milling materials and asphalt surface layer milling materials (RAP materials) are produced. Judging from the current reuse situation, the utilization rate of the two is relatively low, except for a small part of RAP materials. It can be applied to the pavement structure again through regeneration technology. Most RAP materials and pavement base milling materials are often buried as construction waste or stacked in the open air, causing certain pollution to the environment. At the same time, pavement engineering consumes a lot of stone resources, and stone is a non-renewable resource. At present, there is a shortage of stone in the market, and the supply exceeds demand. If these discarded pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04C04B28/00
CPCC04B28/00C04B2111/0075E01C3/04C04B18/167C04B14/02
Inventor 赵文政王纪茂王鹏刘徐光叶晖史凯成朱文平
Owner 赵文政