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Road surface pavement construction method with graphene thin film

A technology of graphene film and construction method, which is applied to cohesive pavement paved on site, roads, roads, etc., can solve the problem of large manpower and material resources for asphalt pavement repair and maintenance, shortened service life of asphalt pavement, and structural damage of asphalt pavement To reduce the chance of rain erosion, strengthen asphalt pavement, and prevent cracking

Inactive Publication Date: 2017-08-29
SHANDONG TRANSPORT VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The initial cracks have basically no effect on the performance of asphalt pavement. However, with the rapid development of the transportation industry in recent years, the traffic volume has continued to increase, the vehicle load has gradually increased, and with the intrusion of surface rainwater, the strength of the pavement will be reduced. Under the action of a large amount of traffic load, the structural damage of the asphalt pavement will be caused, resulting in a shortened service life of the asphalt pavement
Moreover, repairing and maintaining the damaged asphalt pavement also requires a lot of manpower and material resources.

Method used

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  • Road surface pavement construction method with graphene thin film
  • Road surface pavement construction method with graphene thin film

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Experimental program
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Effect test

Embodiment 1

[0013] Embodiment 1: the fine-grained asphalt concrete thickness of the secondary road is 4cm, the Chinese asphalt concrete thickness is 6cm, the cement concrete crushed stone thickness is 20cm, and the graded crushed stone thickness is 20cm, and the 5mm graphene film is laid on the cement concrete crushed stone. between stone and Chinese asphalt concrete. The 20cm graded crushed stone and 20cm cement concrete crushed stone are paved according to the technical plan. The water-cement ratio of cement concrete is 0.56, and the sand rate is 33%; the mixing ratio of water, cement, sand and gravel is 1:1.69:3.44:0.56. Carry out maintenance after paving.

[0014] Before placing and laying the 5mm graphene film, the debris on the pavement base should be removed so that the diameter of dust, sharp protrusions and large particles cannot exceed 5mm. A 5mm graphene film has a length of 15m and a width of 10m. When laying, lay 5mm graphene film continuously according to the construction...

Embodiment 2

[0017] Embodiment 2: The thickness of the upper layer AC-13 fine-grained asphalt concrete of the pavement of the first-class highway is 5cm, the thickness of the middle surface layer AC-20 medium-grained asphalt concrete is 7cm, the thickness of the base cement gravel is 19cm, and the cushion layer is gravel The thickness is 38cm. A 5mm graphene film is laid between the base layer and the middle layer. A 38cm gravel cushion and a 19cm cement gravel base are paved according to the technical plan. A certain amount of gravel (generally not more than 50%) is added to the cement gravel soil. The compaction degree of the subbase is 95.9, and the water content is 4.1. The compaction degree of the base is 94.9, and the water content is 4.3.

[0018] When placing and laying 5mm graphene film, the sundries on the pavement base should be removed, so that the diameter of dust, sharp protrusions and large particles should not exceed 5mm. A 5mm graphene film has a length of 15m and a widt...

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Abstract

The invention is related to a pavement construction technology in the direction of bridge engineering in the field of highway engineering, and discloses a road surface pavement construction method according to graphene thin film reinforcing principle. Under a large traffic load, an asphalt road surface is suffered from structural damage, which causes reduction of service life of the asphalt road surface. The method includes the steps of: 1) according to national regulation standards, performing pavement from the upper embankment of earth base to a base course of a pavement surface layer; 2) paving the graphene thin film; 3) performing waterproof property and rebound deflection test; and 4) paving kerbs. The construction method can reinforce the asphalt road surface, increase the allowable load of the asphalt road surface and prevent cracking due to premature fatigue in the asphalt road surface, increases waterproofing effect of below the middle surface course in asphalt concrete, reduces the probability of invasion in the asphalt concrete pavement due to rainwater, and prolongs the service life of the asphalt concrete pavement.

Description

technical field [0001] The patent of the invention belongs to the technical field of road surface construction in the direction of highway engineering and bridge engineering, and relates to a road pavement construction method using the principle of graphene film reinforcement. Background technique [0002] Asphalt pavement is a widely used pavement in road construction. Although it is widely used in construction, asphalt materials have poor temperature stability, are prone to brittle cracks in winter, and are easy to soften in summer; the compacted mixture has a large void ratio, poor water resistance, and is prone to water damage. After the asphalt pavement is built, some cracks will appear after a period of use. The initial cracks have basically no effect on the performance of asphalt pavement. However, with the rapid development of the transportation industry in recent years, the traffic volume has continued to increase, the vehicle load has gradually increased, and with...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/24
CPCE01C7/32E01C11/24
Inventor 卞贵建董春晖荣文涛
Owner SHANDONG TRANSPORT VOCATIONAL COLLEGE
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