Asphalt concrete road surface construction method

A technology of asphalt concrete and construction method, which is applied to cohesive pavement paved on site, roads, roads, etc., which can solve the problems of limiting the speed of urban vehicles, bumpy urban vehicles, uneven road surface, etc., and achieve improved stability , uniform distribution, and the effect of improving the bonding strength

Inactive Publication Date: 2019-08-13
广东隆建工程有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the stable operation of urban vehicles, it is usually necessary to keep the road surface relatively flat. If the road surface is uneven, it is easy to cause bumps in urban vehicles and severely limit the speed of urban vehicles.
[0004] Although the pave...

Method used

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  • Asphalt concrete road surface construction method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A kind of bituminous concrete pavement construction method, with reference to figure 1 , including the following steps:

[0062] S1. Excavation of foundation pit, details are as follows:

[0063] Excavate the foundation pit according to the direction of the road in the design drawing.

[0064] S2. Compact the bottom of the foundation pit, as follows:

[0065] The bottom of the foundation pit is compacted by a road roller, and then a waterproof asphalt membrane is laid on the bottom of the foundation pit.

[0066] S3. Fill the base material, as follows:

[0067] Put natural rock block into foundation pit, natural rock block adopts granite, and the maximum size of natural rock block is length 50cm, width 50cm, height 50cm, and adjacent natural rock block is close to.

[0068] S4. Pouring the road surface, specifically as follows:

[0069]Pour asphalt concrete to form the pavement layer, and the top height of the pavement layer is 5cm higher than the top height of the...

Embodiment 2

[0074] A preparation method of asphalt concrete, specifically as follows:

[0075] a. Add 15kg of Portland cement and 20kg of water into the stirring tank at a speed of 30r / min, and stir for 5min to form cement slurry;

[0076] b. Add 100kg of asphalt into the cement slurry, rotate at a speed of 45r / min, and stir for 5min to form an asphalt slurry;

[0077] c. Add 30kg of sand, 40kg of stone, 5kg of acrylic acid emulsion, 2kg of casein and 0.5kg of fatty alcohol polyoxyethylene ether into the asphalt slurry, and stir for 8 minutes at a speed of 35r / min to form asphalt concrete.

Embodiment 3

[0079] A preparation method of asphalt concrete, specifically as follows:

[0080] a. Add 17kg of Portland cement and 23kg of water into the stirring tank at a speed of 30r / min and stir for 5min to form cement slurry;

[0081] b. Add 100kg of asphalt into the cement slurry, rotate at a speed of 45r / min, and stir for 5min to form an asphalt slurry;

[0082] c. Add 35kg of sand, 45kg of stone, 5.5kg of acrylic acid emulsion, 2.5kg of casein, and 0.7kg of fatty alcohol polyoxyethylene ether into the asphalt slurry, and stir for 8 minutes at a speed of 35r / min to form asphalt concrete.

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Abstract

The invention relates to the technical field of road surfaces, and provides an asphalt concrete road surface construction method to aim at the problem that a structure is prone to damage after long-time using. According to the technical scheme, the asphalt concrete road surface construction method includes the following steps that S1, a foundation pit is excavated; S2, the bottom of the foundationpit is compacted; S3, substrate filling is carried out; S4, the road surface is poured, specifically, asphalt concrete is poured on a substrate to form a road surface layer; and S5, the road surfacelayer is compacted. The asphalt concrete is prepared from the following components in percentage by mass: 100 parts of asphalt, 15 to 20 parts of silicate cement, 20 to 25 parts of water, 30 to 40 parts of sand, 40 to 50 parts of stone, 5 to 6 parts of acrylic emulsion, 2 to 3 parts of casein, and 0.5 to 1 part of fatty alcohol polyethenoxy ether. The casein is added into the asphalt concrete andused for combining with calcium ions in the silicate cement to form a cross-linking network between molecules, thus molecular movement is further obstructed, so that compression resistance strength ofthe asphalt concrete is improved, and structural stability of the asphalt concrete is improved.

Description

technical field [0001] The invention relates to the technical field of road surfaces, in particular to an asphalt concrete road surface construction method. Background technique [0002] Pavement is the surface in direct contact with urban vehicles and is mainly used to carry the weight of vehicles. [0003] In order to ensure the stable operation of urban vehicles, it is usually necessary to keep the road surface relatively flat. If the road surface is uneven, it is easy to cause bumps in the urban vehicles and severely limit the running speed of the urban vehicles. [0004] Although the pavement will be flattened during construction, after a long period of use, due to the long-term extrusion of its structure, it is prone to structural damage, resulting in depressions on the pavement, which in turn makes the pavement uneven. Therefore, there is still room for improvement. Contents of the invention [0005] In view of the deficiencies in the prior art, the purpose of the ...

Claims

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Application Information

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IPC IPC(8): E01C7/26C08L95/00C08L89/00C08L33/04C08K13/04C08K3/36C08K3/34C08K3/26C08K7/14C04B28/04
CPCC04B28/04C04B2111/0075C08K2003/265C08L95/00C08L2205/035E01C7/26C08L89/00C08L33/04C08K3/36C08K3/34C08K3/26C08K13/04C08K7/14C04B24/36C04B14/02C04B14/06C04B24/14C04B24/24C04B24/32
Inventor 苏保龙林梓聪胡绵雄
Owner 广东隆建工程有限公司
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