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Repairing and transforming method of old cement concrete pavement

A technology of concrete pavement and old cement, which is applied to the coagulation pavement, roads, roads and other directions of on-site paving, can solve problems such as reflection cracks, and achieve the effect of improving performance, low cost and obvious effect.

Inactive Publication Date: 2013-06-05
SHENZHEN MUNICIPAL DESIGN & RES INST +1
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method for repairing and transforming old cement concrete pavement, which can treat the joints and cracks of old cement concrete pavement, so as to solve the reflection cracks that are easy to occur when paving asphalt pavement on old cement concrete pavement problems, so that the pavement can resist uneven deformation caused by temperature stress, which can prolong the service life of asphalt pavement

Method used

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  • Repairing and transforming method of old cement concrete pavement
  • Repairing and transforming method of old cement concrete pavement

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Embodiment Construction

[0021] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0022] see in conjunction figure 1 , figure 2 Shown is Embodiment 1 of the old cement concrete pavement repairing method of the present invention.

[0023] Such as figure 1 As shown, the repairing method of the old cement concrete pavement in the present embodiment comprises:

[0024] Step S10, milling the old cement concrete pavement, and performing joint expansion and seam cleaning operations on the joints on the old cement concrete pavement;

[0025] Step S20, filling the seam tightly and flatly;

[0026] Step S30, spreading modified asphalt material and gravel material synchronously, and rolling them on the old cement concrete pavement to form a stress absorbing layer;

[0027] Step S40, paving asphalt pavement on the stress absorbing layer.

[0028] During specific implementation, the implementation process of step S10 is as follows, as fig...

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Abstract

The invention discloses a repairing and transforming method of an old cement concrete pavement. The repairing and transforming method comprises the following steps: milling and digging the old cement concrete pavement, and expanding and cleaning seams in the old cement concrete pavement; compactly and flatly filling the joint seams; synchronously paving and spreading modified asphalt and road metal; grinding the modified asphalt and the road metal on the old cement concrete pavement so as to form a stress absorbing layer; and paving an asphalt pavement on the stress absorbing layer. By utilizing the repairing and transforming method of the old cement concrete pavement, the joint seams and cracks in the old cement concrete pavement can be treated, so that the problem that reflection cracks is easy to occur when the asphalt pavement is paved on the old cement concrete pavement is solved, the pavement can resist the inhomogeneous deformation caused by temperature stress, and the service life of the paved asphalt pavement is prolonged.

Description

technical field [0001] The invention relates to the field of pavement restoration, in particular to a method for repairing and transforming old cement concrete pavements. Background technique [0002] The roads in southern cities were dominated by cement pavement in the early days. With the increase of service life, the traffic volume increased sharply, the cement pavement appeared plate breaks, and the road surface roughness decreased greatly, which seriously affected the driving comfort and generated relatively large driving noise. Compared with asphalt pavement, repair of cement concrete pavement is more difficult, and there are mainly two major repair measures that can be adopted: adding asphalt concrete surface, adding new cement concrete surface and renovation. [0003] However, asphalt overlay on old cement concrete pavement is prone to reflective cracks, resulting in shortened service life of the overlay. In order to slow down the reflective cracks produced by the a...

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Application Information

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IPC IPC(8): E01C7/32E01C11/06
Inventor 徐波郑南翔刘敬华丛卓红朱秀兰曹淑学王元苏轼鲲
Owner SHENZHEN MUNICIPAL DESIGN & RES INST
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