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Water-permeable reclaimed asphalt mixture paving brick and preparation method thereof

A technology for recycling asphalt and pavement bricks, applied in the field of pavement maintenance materials, can solve problems such as environmental pollution, waste of resources, etc., and achieve the effects of changing acid-base conditions, saving costs, and facilitating maintenance

Inactive Publication Date: 2014-08-27
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production of this large amount of pavement materials, on the one hand, causes serious environmental pollution, and on the other hand, it is a great waste of resources for a country that is extremely scarce in high-quality asphalt.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] 100 parts of recycled asphalt mixture, 2 parts of water, 3 parts of emulsified asphalt, 2 parts of cement, 1 part of polyvinyl acetate emulsion, water permeability coefficient = 1.3mm / s, Kentaburg scattering loss = 18.7%, splitting strength = 0.64 MPa, maximum compressive strength = 10.2MPa.

example 2

[0028] 90 parts of recycled asphalt mixture, 10 parts of new aggregate, 3 parts of water, 4 parts of emulsified asphalt, 1 part of cement, 1 part of mineral powder, 1 part of polyvinyl acetate emulsion, water permeability coefficient = 1.7mm / s, Kentaburg Scattering loss = 17.5%, splitting strength = 0.67MPa, maximum compressive strength = 12.6MPa.

example 3

[0030] 80 parts of recycled asphalt mixture, 20 parts of new aggregate, 4 parts of water, 5 parts of emulsified asphalt, 2 parts of cement, 2 parts of mineral powder, 3 parts of polyvinyl acetate emulsion, water permeability coefficient = 1.4mm / s, Kentaburg Scattering loss = 15.3%, splitting strength = 0.72MPa, maximum compressive strength = 14.1MPa.

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PUM

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Abstract

The invention discloses a water-permeable reclaimed asphalt mixture paving brick and a preparation method thereof. The invention is characterized in that the paving brick is prepared from the following components in parts by weight: 80-100 parts of reclaimed asphalt mixture, 0-20 parts of new aggregate, 2-5 parts of water, 1-6 parts of cement, 2-6 parts of emulsified asphalt, 0-3 parts of ore powder and 1-5 parts of polyvinyl acetate emulsion, wherein the reclaimed asphalt mixture and the new aggregate are of a single size grade of 2.5-10 mm, and the sum of the weight parts of the reclaimed asphalt mixture and the weight parts of the new aggregate is 100. According to the invention, the resource utilization rate can be increased, the environmental pollution can be reduced, and the expense can be saved by several hundred million Yuan.

Description

technical field [0001] The invention relates to the technical field of road surface maintenance materials, in particular to a water-permeable recycled asphalt mixture pavement brick and a preparation method thereof. Background technique [0002] Every year in our country, there are millions of tons of digging and milling asphalt mixture pavement materials produced by asphalt concrete pavement maintenance, repair and reconstruction, and it is also growing at a rate of about 15% per year. [0003] The generation of this large amount of pavement materials, on the one hand, causes serious environmental pollution, and on the other hand, it is a great waste of resources for a country where high-quality asphalt is extremely scarce. [0004] If these waste asphalt pavement materials can be recycled to improve resource utilization and reduce environmental pollution, hundreds of millions of dollars can be saved; therefore, how to make full use of waste asphalt pavement materials has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/16
CPCY02W30/91
Inventor 陈伟耿健
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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