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Grading method of cold recycled asphalt concrete

A cold recycling technology for asphalt concrete, which is applied in the field of asphalt concrete, can solve problems such as the inability to achieve broken links, short service life of recycled asphalt concrete, and failure to achieve resonance between new materials and waste materials, so as to improve mechanical properties, strength and toughness, and improve compaction degree of effect

Active Publication Date: 2018-01-02
BEIJING SAINT GROUND HIGHWAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Research has found that the reason why the life of recycled asphalt concrete is not long is that there is no resonance between the new material and the waste material. Although the asphalt concrete is pressed into one piece, there is no connection, and the effect of disconnection and connection cannot be achieved.

Method used

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  • Grading method of cold recycled asphalt concrete
  • Grading method of cold recycled asphalt concrete
  • Grading method of cold recycled asphalt concrete

Examples

Experimental program
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Effect test

example 1

[0040] 1. Preparation of cold recycled concrete:

[0041] Step 1. In kilograms, select the following raw materials in parts by weight: ceramic waste nanoparticles 10 and aluminum waste nanoparticles 1 with a particle size of 50-60 nm; ceramic waste nanoparticles 15 and aluminum waste nanoparticles 3 with a particle size of 100-120 nm ; particle size 0-5mm asphalt pavement reclaimed material 29; particle size 5-10mm asphalt pavement reclaimed material 24; particle size 20-30mm asphalt pavement reclaimed material 27, crushed stone 14 and volcanic stone 8; mineral powder 1, cement 1, emulsified Asphalt 5, water 4, polypropylene fiber 10 and bentonite 1;

[0042] Step 2. Bentonite 1, polypropylene fiber 3, ceramic waste nanoparticles 5 with a particle size of 100-120nm, pottery aluminum waste nanoparticles 1 with a particle size of 100-120nm, ceramic waste nanoparticles 3 with a particle size of 50-60nm, and a particle size of 50 - 60nm aluminum material waste nanoparticles 0.5 a...

example 2

[0058] 1. Preparation of cold recycled concrete:

[0059] Step 1. In kilograms, select the following raw materials in parts by weight: ceramic waste nanoparticles 12 with a particle size of 50-60nm and aluminum waste nanoparticles 1.5; ceramic waste nanoparticles 12 with a particle size of 100-120nm and aluminum waste nanoparticles 4 ; particle size 0-5mm asphalt pavement recycled material 30; particle size 5-10mm asphalt pavement recycled material 25; particle size 20-30mm asphalt pavement recycled material 28, gravel 14-16 and volcanic stone 9; mineral powder 2, cement 2 , emulsified asphalt 6, water 6, polypropylene fiber 13 and bentonite 2;

[0060] Step 2. Bentonite 2, polypropylene fiber 3, ceramic waste nanoparticles 3 with a particle size of 100-120nm, pottery aluminum waste nanoparticles with a particle size of 100-120nm 0.5, ceramic waste nanoparticles 3 with a particle size of 50-60nm, and a particle size of 50 - 60nm aluminum material waste nanoparticles 1 and emu...

example 3

[0076] 1. Preparation of cold recycled concrete:

[0077] Step 1. Select the following raw materials in parts by weight: ceramic waste nanoparticles 15 and aluminum waste nanoparticles 2 with a particle size of 50-60 nm; ceramic waste nanoparticles 20 and aluminum waste nanoparticles 5 with a particle size of 0-120 nm; 5mm asphalt pavement recycled material 31; particle size 5-10mm asphalt pavement recycled material 26; particle size 20-30mm asphalt pavement recycled material 30, particle size 10-20mm crushed stone 16 and volcanic rock 10; mineral powder 3, cement 2, emulsified Asphalt 7, water 7, polypropylene fiber 15 and bentonite 2;

[0078] Step 2. Bentonite 2, polypropylene fiber 5, ceramic waste nanoparticles 5 with a particle size of 100-120nm, pottery aluminum waste nanoparticles 2 with a particle size of 100-120nm, ceramic waste nanoparticles 5 with a particle size of 50-60nm, and ceramic waste nanoparticles with a particle size of 50nm - 60nm aluminum material wast...

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Abstract

The invention discloses a cold-recycled asphalt concrete grading method. The method comprises the following steps: selecting the following raw materials in parts by weight: 10-15 parts of ceramic waste nanoparticles with the particle sizes of 50-60 nm, 1-2 parts of aluminum waste nanoparticles with the particle sizes of 50-60 nm, 15-20 parts of ceramic waste nanoparticles with the particle sizes of 100-120 nm, 3-5 parts of aluminum waste nanoparticles with the particle sizes of 100-120 nm, 29-31 parts of asphalt pavement recovery materials with the particle sizes of 0-5 mm, 24-26 parts of asphalt pavement recovery materials with the particle sizes of 5-10 mm, 27-30 parts of asphalt pavement recovery materials with the particle sizes of 10-30 mm, 14-16 parts of gravel, 8-10 parts of pelelith, 1-3 parts of mineral powder, 1-2 parts of cement, 5-7 parts of emulsified asphalt, 4-7 parts of water, 10-15 parts of polypropylene fiber and 1-2 parts of bentonite; and then performing mixing grade by grade to finally obtain cold-recycled concrete.

Description

technical field [0001] The invention relates to the field of asphalt concrete, more specifically, the invention relates to a cold recycled asphalt concrete grading method. Background technique [0002] Asphalt concrete is widely used in road construction because of its low price and excellent performance. However, with the widespread use of asphalt roads, more and more construction wastes are generated from its reconstruction and maintenance. How to deal with these wastes has become an urgent problem to be solved. . [0003] The traditional method is to re-proportion and mix these waste materials containing asphalt stones and various components and new materials to form new asphalt concrete. The asphalt concrete made by these methods has good mechanical properties after being paved with roads, but its service life is short. greatly reduced. [0004] Research has found that the reason why the life of recycled asphalt concrete is not long is that there is no resonance betwee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/16C04B18/04
CPCC04B18/0427C04B18/165C04B28/00C04B2201/50C04B18/16C04B14/02C04B14/14C04B24/36C04B16/0633C04B14/104Y02W30/91
Inventor 孙斌刘辉明陈京钰张嘉林
Owner BEIJING SAINT GROUND HIGHWAY TECH
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