Durable asphalt pavement and construction method thereof

An asphalt pavement and durability technology, applied in the field of durable asphalt pavement and its construction, can solve the problems of low resistance to vertical loads and stable loads, poor pavement durability, and large porosity, so as to reduce intrusion and improve Durability, the effect of improving stability

Active Publication Date: 2020-12-18
中电建路桥集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the porosity of the pavement material is designed to be 18-25%, it has good drainage performance. The drainage asphalt pavement adopts large-pore open-graded large-particle-size asphalt mixture, which is a new pavement form to achieve this goal. However, due to the overall structure The large porosity leads to a relatively low ability of the overall pavement to resist vertical loads and stable loads, and it is easily affected by the air and ultraviolet rays of the sun to accelerate the aging of asphalt, resulting in poor pavement durability

Method used

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  • Durable asphalt pavement and construction method thereof
  • Durable asphalt pavement and construction method thereof
  • Durable asphalt pavement and construction method thereof

Examples

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Effect test

Embodiment

[0057] The construction method of durable asphalt pavement comprises the following steps:

[0058] S1, making the prefabricated panel unit 4 and tenons;

[0059] Pouring lean concrete into the mold, rolling the lean concrete and roughening the surface, leaving it for curing, demoulding after curing, and continuing curing after demoulding to obtain the base layer 40;

[0060] Install a mold on the upper surface of the base layer 40, spray asphalt binder on the upper surface of the inner base layer 40 in the mold, then spread the graded large particle size asphalt mixture, roll and stand to obtain the top layer 41, and complete the production of the prefabricated panel unit 4 ;

[0061] Pour cement concrete into the mold to obtain health;

[0062] S2. Excavating side slopes on both sides of the soil foundation 1 along the width direction;

[0063] S3. Pave the soil foundation 1 according to the current technical standards to achieve a stable foundation. The paving of the soil...

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Abstract

The invention discloses a durable asphalt pavement. The durable asphalt pavement comprises a soil base, a cushion layer, a fabricated concrete slab layer, a reinforced layer and a surface layer whichare sequentially arranged from bottom to top, wherein the fabricated concrete slab layer is formed by splicing a plurality of prefabricated slab units in the longitudinal direction of a road; each prefabricated slab unit comprises a drainage concrete base layer and a top layer which is arranged above the base layer and is bonded through a bonding agent; the reinforced layer is arranged on the topsurface of the fabricated concrete and comprises a plurality of net supporting units extending in the length direction of the road; the surface layer comprises a drainage part and a waterproof part except the drainage part; and a protection slope is arranged on the outer side face of a stone plate, and a plurality of flow guide holes are formed in the road extending direction at intervals. The invention discloses a construction method of the durable asphalt pavement. The asphalt pavement structure has the beneficial effects that effective drainage is achieved, and meanwhile the overall durability of the asphalt pavement structure is improved.

Description

technical field [0001] The invention relates to the field of road construction. More specifically, the present invention relates to a durable asphalt pavement and its construction method. Background technique [0002] Asphalt pavement refers to various types of pavement paved with asphalt materials added to mineral materials, and is a widely used pavement in existing road construction. Especially with the continuous development and construction of the city, public buildings, housing, road construction, etc. harden the surface environment and destroy the surface water cycle. In order to change the status quo of the water cycle in the city, the construction of a sponge city is currently advocated to strengthen the city's water absorption when it rains , The ability of water storage and seepage. [0003] When the porosity of the pavement material is designed to be 18-25%, it has good drainage performance. The drainage asphalt pavement adopts large-pore open-graded large-parti...

Claims

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Application Information

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IPC IPC(8): E01C1/00E01C3/00E01C11/22
CPCE01C1/002E01C3/00E01C3/006E01C11/225E01C11/222E01C2201/20Y02A30/60
Inventor 王永曲福友李杰
Owner 中电建路桥集团有限公司
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