Road construction method

A road construction and subgrade technology, applied in roads, roads, buildings, etc., can solve problems such as tensile performance impact, safety impact, road surface cracking, etc., and achieve the effects of enhancing temperature resistance, improving safety, and prolonging service life

Inactive Publication Date: 2019-06-07
广州市诚利建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the pavement is susceptible to natural factors such as moisture, ultraviolet rays, and oxygen, and vehicle loads during long-term use, the pavement concrete may also undergo many complex physical and chemical changes, which will affect the tensile properties of the pavement material; In addition, because the pavement still needs to bear a certain tensile stress, the pavement will also shrink. When the shrinkage exceeds the tensile stress that the pavement material can bear, the pavement may crack, which will affect the safety of people. Therefore, , there is room for improvement

Method used

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  • Road construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A road construction method comprising the steps of:

[0061] S1. Excavate roadbed trenches, details are as follows:

[0062] Excavate the road surface according to the design drawings to form roadbed grooves.

[0063] S2. Cleaning and leveling the subgrade groove, details are as follows:

[0064] Level the roadbed groove, compact it with a road roller, and then clean the dust in the roadbed groove.

[0065] S3. Road base laying, details are as follows:

[0066] Pave the lime-soil cushion in the subgrade groove, and the volume ratio of lime-soil to the lime-soil cushion is 3:7. Control the laying thickness of the lime-soil cushion to 30cm. After the paving is completed, it will be manually leveled and compacted with a 20T road roller to form the road base.

[0067] S4. Laying of rubber asphalt, details are as follows:

[0068] Spread rubber asphalt evenly on the lime-soil cushion, and control the paving thickness of rubber asphalt to 30cm.

[0069] In this embodime...

Embodiment 2

[0078] The difference with embodiment 1 is:

[0079] Concrete includes the following components in parts by mass:

[0080] Portland cement 17kg; fine sand 40kg; mineral powder 17kg; gravel 70kg; water 20kg; 9-anthracene carboxylic acid 2.5kg; phenol 1kg; dilute hydrochloric acid 3kg.

[0081] The preparation method of concrete is as follows: add 17kg of Portland cement, 40kg of fine sand, 17kg of mineral powder, 70kg of gravel, and 20kg of water into a 200L stirring tank, stir at a speed of 150r / min, and add 9-anthracene while stirring 2.5kg of formic acid, 1kg of phenol, and 3kg of dilute hydrochloric acid are mixed evenly to form concrete.

Embodiment 3

[0083] The difference with embodiment 1 is:

[0084] Concrete includes the following components in parts by mass:

[0085] Portland cement 20kg; fine sand 35kg; mineral powder 20kg; gravel 73kg; water 10kg; 9-anthracene carboxylic acid 3kg; phenol 1.5kg;

[0086] The preparation method of concrete is as follows: add 20kg of Portland cement, 35kg of fine sand, 20kg of mineral powder, 73kg of gravel, and 10kg of water into a 200L stirring tank, stir at a speed of 150r / min, and add 9-anthracene while stirring 3kg of formic acid, 1.5kg of phenol, and 2kg of dilute hydrochloric acid are mixed evenly to form concrete.

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Abstract

The invention relates to the field of municipal construction and provides a road construction method to solve a problem that a road is easy to crack under an effect of a natural factor. The road construction method comprises the following steps of S1, excavating a subgrade groove; S2, cleaning and flattening the subgrade groove; S3, back-filling a lime-soil cushion in the subgrade groove and compacting the lime-soil cushion to form a subgrade layer; S4, uniformly laying rubber asphalt on the subgrade layer; S5, laying crushed stones in the rubber asphalt and compacting the crushed stones to form a rubber asphalt and crushed stone mixed layer; and S6, pouring concrete to the rubber asphalt and crushed stone mixed layer and curing and molding the concrete to form a concrete pavement layer. By back-filling the subgrade layer in the subgrade groove first and then laying the rubber asphalt and crushed stone mixed layer and the concrete pavement layer, the road construction method is beneficial for enhancing compressive strength, tensile strength and toughness of a pavement; and therefore, the pavement is uneasy to crack when suffering stress; and the road construction method is beneficial for prolonging the service life of the pavement and is also beneficial for enhancing the safety of the pavement.

Description

technical field [0001] The invention relates to the field of municipal construction, more specifically, it relates to a road construction method. Background technique [0002] In a sense, a road is an infrastructure for various trackless vehicles and pedestrians. The quality of the road is related to the safety of people's daily travel. [0003] Because the pavement is susceptible to natural factors such as moisture, ultraviolet rays, and oxygen, and vehicle loads during long-term use, the pavement concrete may also undergo many complex physical and chemical changes, which will affect the tensile properties of the pavement material; In addition, because the pavement still needs to bear a certain tensile stress, the pavement will also shrink. When the shrinkage exceeds the tensile stress that the pavement material can bear, the pavement may crack, which will affect the safety of people. Therefore, , there is still room for improvement. Contents of the invention [0004] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04E01C7/32C04B28/04C04B111/20
Inventor 欧阳锦潮肖燕群张向科陈锦文
Owner 广州市诚利建设工程有限公司
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