Highway pavement structure taking building rubbish as aggregate

A technology for pavement structure and construction waste, which is applied to cohesive pavement, buildings, roads and other directions paved on site, which can solve the problems of poor strength, stiffness and stability that cannot meet the pavement structure requirements of grade roads, and achieve good strength , Improve the degree of compactness and save the cost of the project

Active Publication Date: 2014-10-15
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, this invention only uses construction waste as the base material of road pavement. In the actual application process, it is found that the pavement using this material has poor strength, rigidity and stability, and cannot meet the road use requirements of grade road pavement structures.

Method used

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  • Highway pavement structure taking building rubbish as aggregate
  • Highway pavement structure taking building rubbish as aggregate
  • Highway pavement structure taking building rubbish as aggregate

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Embodiment 1

[0036] As a preferred embodiment of the present invention, it includes a base layer, a base layer, a base layer and a surface layer laid in sequence from bottom to top; the materials of the base layer and the base layer are waste concrete, and the waste concrete used for the base layer is The particle size is 50-150mm; the base layer is waste concrete with a particle size of 9.5-26.5mm; the base layer is aggregate with a particle size of 4.75-40mm; the surface layer is a surface layer with a particle size of 2.36-20mm aggregate.

Embodiment 2

[0038]As the best implementation mode of the present invention, the present invention is a "large-small-medium-thin" road structure, which is respectively from bottom to top: foundation treatment adopts large blocks of construction slag with a main particle size of 100 mm; Gradation of small pieces of building slag with a particle size of 10-20mm; middle block of building slag with a particle size of 4.75-40mm (including a certain proportion of crushed stones) for the base layer; building slag and crushed stones of 2.36-20mm for the surface layer.

[0039] In the present invention, the roadbed pavement structure layer design is as follows: figure 1 Shown:

[0040] In the structural layer 1 mentioned in the figure, the composition of the material: large pieces of waste concrete.

[0041] In the structural layer 2 mentioned in the figure, the composition of the material: broken waste concrete blocks.

[0042] In the structure layer 3 shown in the figure, there are four options...

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Abstract

The invention discloses a highway pavement structure taking building rubbish as aggregate, and relates to the technical field of highway pavement structural improvement. The highway pavement structure comprises a basal layer, a sub-base layer, a base layer and a surface layer from the bottom up, wherein both the basal layer and the sub-base layer are made of waste concrete; the particle diameter of the waste concrete used in the basal layer is 50 to 150 mm; the particle diameter of the waste concrete used in the sub-base layer is 9.5 to 26.5 mm; the particle diameter of base layer aggregate used in the base layer is 4.75 to 40 mm; the particle diameter of surface layer aggregate used in the surface layer is 2.36 to 20 mm. The highway pavement structure adopts no binder, has higher strength, rigidity and stability due to embedding, extrusion, keying and similar functions among aggregate, and can meet use requirements of low-grade highway pavement structures.

Description

technical field [0001] The invention relates to the technical field of highway pavement structure improvement, in particular to a highway pavement structure using construction waste as aggregate. Background technique [0002] With the development of the economy and the progress of the society, the population of the world has expanded greatly, and the natural resources have been exhausted day by day, and the waste generated by industrial production and living processes has also increased day by day. Especially the construction industry is developing very rapidly, and the construction waste it produces is also increasing unprecedentedly. According to the statistics of Japan's "Ministry of Construction", construction waste accounts for about 40% of the total waste. In 1995, the national construction waste reached 99 million tons; the United States only has 160 million tons of waste concrete every year, and the waste concrete of the European Community has increased to about 162...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32C04B18/16
CPCY02W30/91
Inventor 叶文刚余小刚唐雪峰汪小琴周崇业马佼文华雷挺罗作芬
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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