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Anti-reflection crack asphalt pavement structure and construction method thereof

A technology of asphalt pavement and construction method, applied in the directions of roads, roads, pavement details, etc., can solve problems such as failure to achieve anti-reflection cracks, low tensile strength of singe geotextiles, and inability to solve waterproof problems, and achieve anti-deformation capabilities. Strong, reliable performance, simple construction effect

Inactive Publication Date: 2017-12-12
广东金长成桥梁隧道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned measures have the following defects: one, although the tensile strength of the fiberglass geogrid is high, it is easy to loosen during paving, and cannot achieve the ideal anti-reflection crack effect, and cannot solve the waterproof problem; The tensile strength of the wool geotextile is relatively low, and it is easy to be cracked; 3. When laying the modified asphalt linoleum, it needs to use a flamethrower to melt it and then press it across the joint. The construction is difficult and the tensile strength is low; 4. Pasting anti-cracking stickers can delay the appearance of reflection gaps, but cannot essentially eliminate reflection gaps

Method used

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  • Anti-reflection crack asphalt pavement structure and construction method thereof
  • Anti-reflection crack asphalt pavement structure and construction method thereof

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Experimental program
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Effect test

Embodiment 1

[0036] In this embodiment, the construction method of the anti-reflective crack-resistant asphalt pavement structure includes the following steps:

[0037] Step 1: Use a small slotting machine to slot along the surface of the road base layer, and form a slot with a width of 0.5 cm-1 cm and a depth of 0.5 cm-1.5 cm at the opening of the slot. In this embodiment Wherein, the width of the slot is 0.8 cm and the depth is 1.0 cm; the surface of the road base layer and the gaps on the surface of the road base layer are cleaned by means of compressed air blowing or high-pressure vacuum cleaner absorption, etc., and the road is cleaned manually or mechanically The surface of the base layer, to ensure that the inner wall of the gap is dry and clean, and the surface of the road base layer is free of pollution and debris;

[0038] Step 2: Fill the gap with filler to form a layer of asphalt filling material that fills the gap. The gap should be uniform and full so that the filler fills the gap...

Embodiment 2

[0044] In this embodiment, the construction method of the anti-reflective crack-resistant asphalt pavement structure includes the following steps:

[0045] Step 1: Use a small slotting machine to slot along the surface of the road base layer, and form a slot with a width of 0.5 cm-1 cm and a depth of 0.5 cm-1.5 cm at the opening of the slot. In this embodiment Wherein, the slot has a width of 1 cm and a depth of 1.5 cm; the surface of the road base layer and the gaps on the surface of the road base layer are cleaned by means of compressed air blowing or high-pressure vacuum cleaner absorption, etc., and the road is cleaned manually or mechanically The surface of the base layer, to ensure that the inner wall of the gap is dry and clean, and the surface of the road base layer is free of pollution and debris;

[0046] Step 2: Fill the gap with filler to form a layer of asphalt filling material that fills the gap. The gap should be uniform and full so that the filler fills the gap and ...

Embodiment 3

[0051] In this embodiment, the construction method of the anti-reflective crack-resistant asphalt pavement structure includes the following steps:

[0052] Step 1: Use a small slotting machine to slot along the surface of the road base layer, and form a slot with a width of 0.5 cm-1 cm and a depth of 0.5 cm-1.5 cm at the opening of the slot. In this embodiment Wherein, the slot has a width of 0.5 cm and a depth of 0.5 cm; the surface of the road base layer and the gaps on the surface of the road base layer are cleaned by means of compressed air blowing or high-pressure vacuum cleaner absorption, etc., and the road is cleaned manually or mechanically The surface of the base layer, to ensure that the inner wall of the gap is dry and clean, and the surface of the road base layer is free of pollution and debris;

[0053] Step 2: Fill the gap with filler to form a layer of asphalt filling material that fills the gap. The gap should be uniform and full so that the filler fills the gap an...

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Abstract

The invention discloses an anti-reflection crack asphalt pavement structure and a construction method thereof. The anti-reflection crack asphalt pavement structure is paved on the surface of a roadbase with cracks. The anti-reflection crack asphalt pavement structure comprises a T-shaped reinforcing part and an asphalt joint sealing material layer filling the cracks. The T-shaped reinforcing part comprises a transverse plate piece and a vertical plate piece arranged in the middle along the width direction of the lower surface of the transverse plate piece; the vertical plate piece of the T-shaped reinforcing part is embedded into and fixed in the asphalt joint sealing material layer and the lower surface of the transverse plate piece is adhered and fixed to the surface of each roadbase on each side of the crack; the asphalt pavement structure also comprises an asphalt coating and an asphalt concrete surface layer covering the asphalt coating. The asphalt coating coats the surface of a combination formed by adhering the roadbase and the T-shaped reinforcing piece. The structure disclosed by the invention has the advantages of good stability and high anti-reflection crack ability and the service life of the pavement can be prolonged effectively.

Description

Technical field [0001] The invention relates to the technical field of road design and construction, in particular to an anti-reflective crack-resistant asphalt pavement structure and a construction method thereof. Background technique [0002] Cement concrete pavement, as a main structural form of advanced pavement, has the advantages of high strength, good stability and long service life. Due to the rapid increase in traffic, most of the cement concrete pavements built in the early days showed varying degrees of disease. When the diseased pavement cannot meet the use requirements, it needs to be renovated, asphalt concrete surface layer or new cement concrete pavement added. [0003] It is technically feasible to implement white-to-black asphalt concrete layer on the old cement concrete pavement, but there are problems such as reflection gaps and structural durability. Reflective cracks are a common disease phenomenon in asphalt pavements, which are caused by the inherent trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/02
Inventor 王金辉莫广亮王潇潇李亚平何义龙刘允盛葛银辉莫叶兵宋学斌阳鹰飞周强伟谭湛溪陈凤多温伟权李浩莫叶勇谭业琪
Owner 广东金长成桥梁隧道科技有限公司
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