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Construction method of soft soil anti-collapse concrete road surface

A technology of concrete pavement and construction method, which is applied to coagulation pavement paved on site, roads, roads, etc., which can solve problems affecting the normal use of roads, reduce the strength of roadbeds and pavements, and shorten the service life of asphalt pavements, so as to improve the resistance The ability to repeatedly deform over a long period of time, the possibility of reduction, and the effect of easy construction

Inactive Publication Date: 2017-02-22
青建集团股份公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

These diseases not only bring various hidden dangers to road traffic, but also reduce the strength of roadbed and road surface, affecting the normal use of roads; at the same time, they also greatly shorten the service life of asphalt pavement, and cause considerable economic losses. , this is a problem that cannot be ignored

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0023] Embodiment one, a kind of soft soil anti-collapse concrete pavement construction method, comprises the following steps:

[0024] (1) Treatment of the soft soil matrix: excavate the silt, replace the slag and fill it, and then roll it layer by layer to make it smooth;

[0025] (2) Preparation of semi-rigid base material: The semi-rigid base material is cement-stabilized gravel with a cement content of 5%, and the mass ratio of cement-stabilized gravel is cement, water, and , crushed stone and stone powder are mixed evenly to obtain;

[0026] (3) Construction of semi-rigid base: spread the cement-stabilized gravel obtained in step (2) on the treated soft soil substrate in step (1), complete paving, rolling and curing;

[0027] (4) Paving and vibrating: for the semi-dry and hard on-site concrete, the maximum thickness of the concrete road slab that can be paved in one paving is 22 ~ 24cm; the maximum thickness of the plastic commercial concrete paving in one paving is 26c...

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Abstract

The invention discloses a construction method of a soft soil anti-collapse concrete road surface. The construction method is characterized by comprising the following steps of: (1) treating a soft soil matrix: excavating sludge, filling slags, and performing layered rolling for levelling; (2) preparing a semi-rigid base course material: wherein the semi-rigid base course material is cement-stabilized macadam with a cement content of 5%, and is obtained by uniformly mixing cement, water, macadam and stone powder in a mass ratio of the cement to the water, to the macadam and to the stone powder being 102 to 120 to (1390-1400) to (650-660); and (3) performing construction of a semi-rigid base course: laying the cement-stabilized macadam obtained in the step (2) on the soft soil matrix treated in the step (1), performing paving, performing rolling and performing curing. The construction method disclosed by the invention aims to solve the technical problem of providing the construction method of the soft soil anti-collapse concrete road surface, which is good in firmness, few in cracks and high in construction speed, and besides, road materials can be saved, so that the paving cost is further reduced.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for soft soil subsidence-proof concrete pavement. Background technique [0002] There are many reasons for concrete pavement cracking: for example: too much water-cement ratio of concrete, insufficient maintenance period of concrete pavement, uneven subsidence of foundation, uneven compaction of subgrade, excessive area of ​​concrete slabs, etc. No matter what the reason is, pavement cracking is caused by stress. Excessive concrete water-cement ratio and insufficient concrete pavement maintenance period will produce shrinkage stress. Uneven foundation settlement and uneven subgrade compaction will produce settlement stress. Assembly produces temperature stress. The main component of concrete pavement to resist cracking is steel bar, but the anti-cracking effect is not obvious in practical engineering. [0003] As the preferred material for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04E01C11/14E01C7/14E01C19/48
CPCE01C3/04E01C7/14E01C11/14E01C19/48
Inventor 王胜朱思远
Owner 青建集团股份公司
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