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Municipal road construction method

A construction method and technology for municipal roads, applied to roads, roads, on-site coagulation pavements, etc., can solve problems such as high-temperature rutting resistance, low-temperature cracking resistance, and water damage of asphalt pavements, and improve Road performance and durability, the effect of increasing the amount of asphalt, good high temperature stability and low temperature crack resistance

Inactive Publication Date: 2020-01-03
四川齐峰建设工程有限公司
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Problems solved by technology

[0004] The above existing technical solutions have the following defects: due to the limitation of the amount added, there is a limit to the effect of modifier modified asphalt on improving the performance of asphalt pavement, which can only improve the deformation of the road surface to a certain extent, and cannot be effectively solved. High temperature rutting resistance, low temperature cracking resistance and water damage of asphalt pavement

Method used

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  • Municipal road construction method

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Embodiment

[0035] Such as figure 1 As shown, a municipal road is paved with cement stabilized macadam subbase 1, cement stabilized macadam base 2, AC-25 asphalt underlayer 3, AC-20C asphalt middle surface 4 and fiber network composite reinforcement from bottom to top. Type 5 high elastic modulus bitumen upper layer. At the same time, before paving the AC-20C asphalt middle surface layer 4, spray the high-viscosity emulsified asphalt adhesive layer 6 on the AC-25 asphalt lower layer 3 to strengthen the AC-25 asphalt lower layer 3 and the AC-20C asphalt middle surface layer 4 Bonding between them; before paving the fiber network composite reinforced high elastic modulus asphalt upper layer 5, spray high-viscosity emulsified asphalt adhesive layer 6 on the AC-20C asphalt middle surface layer 4 to strengthen the AC-20C asphalt middle surface Bond between layer 4 and fiber network composite reinforced high elastic modulus asphalt upper layer 5.

[0036] This embodiment also discloses a muni...

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Abstract

The invention relates to a municipal road construction method. The method comprises the following steps that 1, construction preparation is carried out, and a cement stabilized macadam subbase courseis paved; 2, the cement stabilized macadam subbase course is paved with a cement stabilized macadam base; 3, the cement stabilized macadam base is paved with an AC-25 asphalt lower face layer througha paving machine; 4, the AC-25 asphalt lower face layer is paved with an AC-20 C asphalt middle face layer; and 5, the AC-20 C asphalt middle face layer is paved with a fiber network composite enhanced high modulus asphalt upper face layer through the paving machine, and three-dimensional flocculent granular mineral basalt fibers are added to the fiber network composite enhanced high modulus asphalt upper face layer, so that construction is finished. The method has the effect of effectively improving asphalt strength and toughness.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a municipal road construction method. Background technique [0002] With the continuous increase of road traffic volume, transport vehicles tend to be larger and heavier, and the asphalt concrete pavement cracks, water damage, and rutting appear prematurely, resulting in its service life generally not reaching the design level. [0003] In the existing technology, in order to improve the service performance and durability of the asphalt concrete pavement, the method of adding a modifier to the asphalt mixture is generally adopted at present. [0004] The above existing technical solutions have the following defects: due to the limitation of the amount added, there is a limit to the effect of modifier modified asphalt on improving the performance of asphalt pavement, which can only improve the deformation of the road surface to a certain extent, and cannot be effectively ...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C7/35
CPCE01C7/32E01C7/35
Inventor 吴小燕曹瓦常青平尹红邹进
Owner 四川齐峰建设工程有限公司
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