Construction method of long-service-life pass-through induced drainage pavement

A construction method and water-absorbing technology, applied to roads, roads, on-site paved condensing pavements, etc., can solve problems that affect the effective use of rainwater, difficulty in urban groundwater sources, and aggravate the pollution of natural water bodies. Property loss, strengthening insulation measures and high temperature construction, and improving the effect of shear resistance

Active Publication Date: 2014-06-11
郑州市公路工程公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the construction process of traditional non-permeable pavement, the waterproof and anti-seepage performance of the road surface is one-sidedly emphasized. This pavement completely blocks the natural rainfall from the soil layer and groundwater below the pavement, and the rainfall has to be discharged into rivers, rivers, rivers, etc. through the urban drainage system pipe network In surface water sources such as lakes and seas, this makes it difficult for urban groundwater sources to be replenished in a timely manner, which seriously affects the effective use of rai

Method used

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Experimental program
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Effect test

Embodiment 1

[0047] Embodiment 1. A construction method for a long-life permeable induced drainage pavement, comprising the following steps:

[0048]①Preparation of permeable water-inducing pavement filter material: the multi-void drainage and noise-reducing asphalt mixture composed of coarse aggregate, fine aggregate and modified asphalt mixture is used as the filter material for permeable water-inducing pavement The weight ratio of fine aggregate and modified asphalt mixture is 58.5:35.85:5.65, wherein: the modified asphalt mixture includes slaked lime, red mud and combined fiber, and the weight ratio of slaked lime, red mud and combined fiber is 32.1:64.2: 3.7; The weight ratio of wood fiber and basalt fiber in the combined fiber is 1:2, and the consumption of combined fiber should be 3.7%;

[0049] ② Base treatment of construction pavement: operate according to the base treatment of conventional construction methods;

[0050] ③A layer of adhesive layer or sealing layer is arranged at ...

Embodiment 2

[0057] Embodiment 2: The specific construction steps of a long-life permeable induced drainage pavement are as follows:

[0058] ①Mix ratio design: The production mix ratio of the test road is carried out in the construction site laboratory. Firstly, the raw materials of the hot bin were tested for indicators, and then the Marshall test was carried out according to the relevant steps, and finally the ratio of the coarse and fine aggregates of the hot bin to the modified asphalt mixture was determined to be: 58.5:35.85:5.65

[0059] ②Stirring process:

[0060] Before mixing in the asphalt mixing plant, adjust the gradation and asphalt-stone ratio of the mixing plant so that the gradation tends to the median value of the grading range. The mixer is equipped with air supply equipment, adding fibers, and the heating temperature of the asphalt is controlled at no more than 180°C , The mineral material heating temperature is 190~2lO℃, the asphalt mixture is normally 180~185...

Embodiment 3

[0068] Embodiment 3: Adopting the construction method of the present invention, the degree of compaction of the road surface is detected by the drilling method on the second day after the construction is completed, and the detection results of each section are shown in Table 6.1:

[0069]

[0070] From the results of the compaction test, the paving temperature has a great influence on the compaction effect of the mixture. For these two types of fiber mixtures, the paving temperature should be guaranteed to be around 170°C in the subsequent paving process. .

[0071] Half a year after the paving of the test road was completed and opened to traffic, we investigated the pavement use of the test road, and measured the water seepage coefficient and pendulum value of the test road (structural depth > 0.55mm). The results are shown in Table 6.2:

[0072]

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Abstract

The invention discloses a construction method of a long-service-life pass-through induced drainage pavement. The construction method comprises the following steps: 1, preparing filtering materials of the pass-through water-induced pavement, including coarse aggregate, fine aggregate and modified bituminous mixture according to the weight ratio of 58.5 to 35.85 to 5.65, wherein the modified bituminous mixture comprises slaked lime, red mud and conjugate fiber according to the weight ratio of 58.5 to 35.85 to 5.65, and the conjugate fiber comprises wood fiber and basalt fiber according to the weight ratio of 1 to 2; 2, processing a substrate of the construction pavement; 3, arranging an adhesive layer or sealing layer which has the thickness of 0.1-0.2mm and the porosity of 30%; 4, arranging a substrate filtering material layer which is 0.05-0.15mm thick between a soil layer and a gravel layer of the substrate; 5, mechanically paving; 6, treating joints; and 7, maintaining the pavement. The construction method can obviously improve the adhering force, anti-cracking performance, tensile and water-damage resistance performance and noise reducing performance of the pavement, enhance the rainstorm resistance of the pavement, and reduce the influence of long-term rain storage on stability performance of bituminous concrete.

Description

Technical field: [0001] The invention relates to a construction method of asphalt pavement, in particular to a construction method of long-life permeable induced drainage pavement, which allows the rainwater remaining in the drainage surface layer to pass through the connected gaps in the surface layer and technically induces it to flow horizontally Flow and discharge the road surface. Background technique: [0002] At present, in the construction process of traditional non-permeable pavement, the waterproof and anti-seepage performance of the road surface is one-sidedly emphasized. This pavement completely blocks the natural rainfall from the soil layer and groundwater below the pavement, and the rainfall has to be discharged into rivers, rivers, rivers, etc. through the urban drainage system pipe network In surface water sources such as lakes and seas, this makes it difficult for urban groundwater sources to be replenished in a timely manner, which seriously affects the e...

Claims

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Application Information

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IPC IPC(8): E01C7/32
Inventor 刘治龙吕志伟宋书彬陈彦锋张鹏陈冠峰吴歌陈静张晓朋潘刚陈磊吕珩于水敬李冬梅管东胡文娟杨春祥金鑫王春阳贾海峰程杰宋满
Owner 郑州市公路工程公司
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