Construction method for synchronously paving smooth and rough asphalt pavements

A technology of asphalt pavement and construction method, which is applied to cohesive pavement paved on site, roads, roads, etc., which can solve the problems that cannot meet the engineering quality requirements of smooth and rough asphalt pavement, the overall flatness of the road surface is difficult to control, and the work efficiency is low. , to avoid waiting time, save construction period and improve work efficiency

Active Publication Date: 2018-09-11
中交一公局第五工程有限公司 +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing ordinary asphalt paving technology in China is the construction technology of the same kind of mixture. For the construction of sprinkling pre-wrapped gravel on the surface, it cannot meet the engineering quality requirements of smooth and rough asphalt pavement. Difficult to control, difficult construction, low work efficiency

Method used

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  • Construction method for synchronously paving smooth and rough asphalt pavements
  • Construction method for synchronously paving smooth and rough asphalt pavements
  • Construction method for synchronously paving smooth and rough asphalt pavements

Examples

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Effect test

Embodiment 1

[0086] The rough and smooth concrete pavement of the test field project is located on the third special road on the west side of the T5NVH and comfort runway. The road is 600m long and the clear road width is 4m. The specific process is as follows:

[0087] (1) Construction preparation:

[0088] (1.1) Mix design:

[0089] According to the design requirements, the asphalt micro-base uses BBTM asphalt concrete, which is a discontinuously graded asphalt mixture, and its mixture properties are between asphalt mastic macadam mixture and permeable asphalt concrete. After repeated tests in the early stage, the BBTM8B asphalt concrete mix ratio that meets the requirements was designed, and it was used for on-site construction after passing the verification.

[0090] (1.2) Mixing pre-coated gravel:

[0091] Requirements for pre-wrapped gravel: maximum asphalt 25mm, polishing value > 65, Los Angeles wear < 10%, 70# asphalt content 1.5% ± 0.3%. The pre-coated gravel is 18-25mm gravel...

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Abstract

The invention discloses a construction method for synchronously paving smooth and rough asphalt pavements. The construction method comprises the following steps: performing construction preparation; mixing pre-coated gravel; transporting materials; paving a micro-base layer; positioning a pre-coated gravel spreading controller in place; evenly spreading the pre-coated gravel; shifting the gravel spreading controller; repeating synchronous paving; performing synchronous rolling; closing the traffic; and detecting smooth and rough asphalt layers. The technology can complete the spreading of thepre-coated gravel in a short time so as to greatly improve the working efficiency, and simultaneously can improve the bonding integrality of the pre-coated gravel and the asphalt layers so as to effectively ensure the overall engineering quality of the road.

Description

technical field [0001] The invention relates to the technical field of building and civil engineering construction, in particular to a construction method for synchronously paving smooth and rough asphalt pavement. Background technique [0002] As there are more and more test sites in various forms in China, the types of special asphalt roads are becoming more and more complete, and the requirements for various indicators are also getting higher and higher. Smooth and rough asphalt roads are a key internal noise test track in NVH test roads. At present, the existing ordinary asphalt paving technology in China is the construction technology of the same kind of mixture. For the construction of sprinkling pre-wrapped gravel on the surface, it cannot meet the engineering quality requirements of smooth and rough asphalt pavement. It is difficult to control, the construction is difficult, and the work efficiency is low. Contents of the invention [0003] Aiming at the above-men...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18
CPCE01C7/18
Inventor 高建清任伟涛徐彬超赵毅石志旺张永利刘平于胜利王丽军方明亮赵明鑫王亚旭邓亚杰张永恒
Owner 中交一公局第五工程有限公司
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