A kind of construction method of cement stabilized base expansion joint and cement stabilized base

A technology of cement stabilization and construction method, which is applied in the field of expansion joint construction of cement-stabilized base and cement-stabilized base. The effect of years of service

Active Publication Date: 2022-02-01
新疆路桥建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the construction process of the expansion joints of the existing cement stabilized base, there are: (1) construction machinery needs to be started and stopped many times, which affects the continuity of paving operations; (2) leads to long construction period and high construction cost; (3) road surface The service life is not long, and the post-maintenance cost is high; (4) The problem of arching damage of the cement-stabilized base is still serious, which affects the driving comfort

Method used

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  • A kind of construction method of cement stabilized base expansion joint and cement stabilized base
  • A kind of construction method of cement stabilized base expansion joint and cement stabilized base

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment provides a cement-stabilized base expansion joint construction method, please refer to figure 1 , which includes the following steps:

[0046] (1) Construction preparation

[0047] Before the expansion joint construction, the unconfined compressive strength of the cement-stabilized base must meet the design requirement of 3MPa, and the surface pollutants should be cleaned to remove debris.

[0048] (2) Measurement positioning

[0049] Keep the distance between two adjacent expansion joints at about 80m, and confirm the position of the expansion joints on the water-stabilized base on site. The expansion joint should be perpendicular to the direction of the route, and the cutting surface should be vertically downward.

[0050] (3) Expansion seam cutting

[0051] Place the cutting machine in place according to the reference line of measurement and positioning, and center and level it. Start the cutting machine, after the saw blade is running normally, ...

Embodiment 2

[0059] This embodiment provides a cement-stabilized base expansion joint construction method, please refer to figure 1 , which includes the following steps:

[0060] (1) Construction preparation

[0061] Before the expansion joint construction, the unconfined compressive strength of the cement-stabilized base must meet the design requirement of 3MPa, and the surface pollutants should be cleaned to remove debris.

[0062] (2) Measurement positioning

[0063] Keep the distance between two adjacent expansion joints at about 100m, and confirm the location of the expansion joints on the water-stabilized base on site. The expansion joint should be perpendicular to the direction of the route, and the cutting surface should be vertically downward.

[0064] (3) Expansion seam cutting

[0065] Place the cutting machine in place according to the reference line of measurement and positioning, and center and level it. Start the cutting machine, after the saw blade is running normally,...

Embodiment 3

[0073] This embodiment provides a construction method for cement-stabilized base expansion joints, the specific steps of which are roughly the same as those in Example 1, the difference being that: before paving the gravel seal on the cement-stabilized base, no anti-cracking is carried out at the expansion joints Operation of base cloth.

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Abstract

The invention discloses a cement-stabilized base expansion joint construction method and a cement-stabilized base, which relate to the technical field of building construction. The cement-stabilized base expansion joint construction method includes: cutting the cement-stabilized base to form at least one expansion joint, filling each expansion joint with an expansion joint plate, and pouring the gap between the expansion joint plate and the expansion joint forming. The cement stabilized base includes a cement stabilized base body and expansion joints arranged on the cement stabilized base body, and the expansion joints are filled with expansion joint plates and pouring fillers. The construction method provided by the invention avoids the repeated starting and stopping of the construction machinery, makes the paving operation continue, shortens the construction period, and saves the construction cost; compared with the prior art, it can further inhibit the arching damage of the cement stable base, prolong the Service life, increase driving comfort.

Description

technical field [0001] The invention relates to the technical field of building construction, and in particular to a construction method for expansion joints of a cement-stabilized base and a cement-stabilized base. Background technique [0002] Cement-stabilized base expansion joints are designed to prevent and eliminate the accumulated expansion and deformation of the base plate, and are one of the important measures to prevent expansion and uplift of the base plate in hot weather. The expansion joints of the cement-stabilized base are generally filled with asphalt binder or fine-grained fracture-graded asphalt mixture, and the expansion joints are generally set when the cement-stabilized base is paved. [0003] In the construction process of the expansion joints of the existing cement stabilized base, there are: (1) construction machinery needs to be started and stopped many times, which affects the continuity of paving operations; (2) leads to long construction period an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/00E01C3/04E01C11/02
CPCE01C3/00E01C3/04E01C11/02
Inventor 李海燕沙波周嘉陵冯宁阳王振杰刘健刘宏超魏红刚古力再拉·艾买尔江
Owner 新疆路桥建设集团有限公司
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