Emulsified asphalt plant-mixed cold-recycled mixture and construction process thereof

A technology for cold recycling of mixtures and emulsified asphalt, applied in the directions of roads, sustainable waste treatment, solid waste management, etc., can solve the problems of insufficient disclosure, no disclosure of mixture composition, waste of energy, etc.

Inactive Publication Date: 2022-03-11
HUITONG ROAD & BRIDGE CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing patents, the application number is CN201910369872.8, and the patent title is the method of preparing emulsified asphalt plant mixed cold recycled mixture through double-gradation design. This patent does not disclose the composition of the mixture, and the disclosure is insufficient, so it has been withdrawn; The application number is CN101812825B, and the name is the heating and rolling method of emulsified asphalt plant mixing cold recycled asphalt mixture; this patent uses heating method, which wastes energy

Method used

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  • Emulsified asphalt plant-mixed cold-recycled mixture and construction process thereof
  • Emulsified asphalt plant-mixed cold-recycled mixture and construction process thereof
  • Emulsified asphalt plant-mixed cold-recycled mixture and construction process thereof

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Experimental program
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Effect test

Embodiment 1

[0063] see figure 1 as well as Figure 6 Shown:

[0064] This embodiment provides an emulsified asphalt plant mixed cold recycled mixture and its construction process, the formula of which includes cold recycled mixture ore, emulsified asphalt and cement;

[0065] The cold recycled mixed material mineral material includes RAP mineral material, aggregates with a particle size of 10-30mm: and mineral powder;

[0066] Described RAP mineral material comprises the RAP mineral material that particle size is 0-5mm, the RAP mineral material that particle size is 5-10mm and the RAP mineral material that particle size is 10-30mm;

[0067] The RAP mineral material whose particle size is 0-5mm: the RAP mineral material with a particle size of 5-10mm: the RAP mineral material with a particle size of 10-30mm: the aggregate with a particle size of 10-30mm: mineral powder: cement: emulsified asphalt=( 28-33)%: (22-25)%: (32-37)%: (8-12)%: (1.8-2.2)%: (1.2-1.8)%: (2.6-3.8)%;

[0068] The p...

Embodiment 2

[0113] The structure of this embodiment is basically the same as that of Embodiment 1, the difference is that

[0114] The distribution ratio of the components in the cold recycled mixture is as follows: RAP mineral material with a particle size of 0-5 mm: RAP mineral material with a particle size of 5-10 mm: RAP mineral material with a particle size of 10-30 mm: a particle size of 10 mm -30mm aggregate: mineral powder == 30: 23: 35: 10: 2; cold recycled mixture mineral material: emulsified asphalt: cement = 100: 3.3: 1.5. Determine the best amount of emulsified asphalt and take 2.6%, 2.9%, 3.2%, 3.5%, 3.8% to make and secondary molding test pieces, and test the bulk density, void ratio, splitting strength and other indicators;

[0115] From attached Figure 9 It can be seen from the table test results that the amount of emulsified asphalt OEC1 corresponding to the maximum bulk density of the cold recycled mixture is 3.2%, and under the premise of satisfying the porosity of 9...

Embodiment 3

[0117] The structure of this embodiment is basically the same as that of Embodiment 1, the difference is that

[0118] After the construction of the emulsified asphalt factory-mixed cold recycled mixture layer is completed, the entire line will take 1-3km as an assessment section for acceptance. as attached Figure 4 As shown, check and accept according to the provisions in the table; to ensure the quality.

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Abstract

The invention relates to an emulsified asphalt plant-mixed cold-recycled mixture and a construction process thereof. The emulsified asphalt plant-mixed cold-recycled mixture comprises a cold-recycled mixture mineral aggregate, emulsified asphalt and cement, the ratio of the components is as follows: RAP (0-5mm): RAP (5-10mm): RAP (10-30mm): aggregate with the particle size of 10-30mm: mineral powder: emulsified asphalt: cement = 30: 23: 35: 10: 2: 3.3: 1.5; the proportion of water is 3.6%; the construction technology of the mixture comprises the eight steps of original pavement milling and screening, construction lofting, fiber cloth laying, mixing, mixture transportation, paving, compaction and maintenance. The invention has the following beneficial effects: from the perspective of resource saving, 100% of original pavement old materials are fully utilized, no waste material is used, and mineral and land resources are saved; and the regeneration unit performs continuous construction, regeneration, paving and additional paving synchronously. The pavement maintenance construction time is greatly shortened through emulsified asphalt cold regeneration, and time, materials, resources and the like are greatly saved.

Description

technical field [0001] The invention relates to the technical field of highway asphalt pavement regeneration, in particular to a formula of emulsified asphalt plant-mixed cold recycled mixture and a construction process thereof. Background technique [0002] With the rapid development of my country's highway traffic, the national and provincial trunk road network has gradually formed, the proportion of new roads has decreased year by year, and the proportion of reconstruction and overhaul projects has continued to expand. If the asphalt pavement reconstruction continues to adopt the traditional method, a large amount of excavated and milled asphalt mixture will be discarded, which will increase the asphalt, gravel and other materials needed to rebuild the road surface, which will pollute the environment and waste resources. The use of asphalt regeneration technology, increasing the development of renewable energy, and reusing old pavement materials are of great significance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/16E01C7/18E01C7/26
CPCC04B28/04C04B18/167E01C7/18E01C7/187E01C7/26E01C7/262C04B2111/00017C04B18/12C04B14/068C04B14/16C04B18/103C04B18/141C04B18/023C04B14/185C04B24/36Y02W30/91
Inventor 赵振云祖东靖徐静刘明阳崔亚涛崔铭朱傲雨时文莲崔博通甄三民
Owner HUITONG ROAD & BRIDGE CONSTR GROUP
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