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A construction method of long-life permeable induced drainage pavement

A construction method, a technology of permeable and water-inducing, applied in the direction of roads, roads, and on-site condensing pavements, etc., can solve the problems of aggravating the pollution of natural water bodies, affecting the effective use of rainwater, and difficulty in urban groundwater sources, etc. Property damage, strengthening of thermal insulation measures and high temperature construction, the effect of improving shear resistance

Active Publication Date: 2016-03-09
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 rainwater; at the same time, when it rains on impermeable ground, the rainwater is first discharged into the sewer through the drainage slope or surface ditch on the ground. Before entering the sewer, it has to go through a long distance of surface runoff to enter the urban underground drainage system. This process makes relatively clean rainwater dissolve into a large amount of urban surface pollutants. The secondary pollution generated in this runoff process passes through the city. Drainage into the surrounding surface natural waters, thus increasing the pollution of these natural waters

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  • A construction method of long-life permeable induced drainage pavement
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Experimental program
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Effect test

Embodiment 1

[0049] Embodiment 1. A construction method for a long-life permeable induced drainage pavement, comprising the following steps:

[0050]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 amount of combined fiber should be 3.7%;

[0051] ② Base treatment of construction pavement: operate according to the base treatment of conventional construction methods;

[0052] ③A layer of adhesive layer or sealing layer is arranged at the i...

Embodiment 2

[0059] Embodiment 2: The specific construction steps of a long-life permeable induced drainage pavement are as follows:

[0060] 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

[0061] ②Stirring process:

[0062] 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℃ when l...

Embodiment 3

[0070] 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:

[0071]

[0072] 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. .

[0073] 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:

[0074]

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Abstract

The invention discloses a construction method for a long-life permeable inductive drainage pavement. The steps are as follows: ① Prepare a permeable water-inducing pavement filter material: the weight ratio of coarse aggregate, 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, the weight ratio of slaked lime, red mud and combined fiber is 58.5: 35.85: 5.65; the weight ratio of wood fiber and basalt fiber in combined fiber is 1:2 ; ② Base treatment of construction pavement; ③ Set a sticky layer or seal layer with a thickness of 0.1-0.2mm, with a porosity of 30%; Base filter material layer; ⑤ mechanical paving; ⑥ joint treatment; ⑦ pavement maintenance. The invention can significantly improve the adhesion, crack resistance, tensile and water damage resistance, and noise reduction performance of the road surface, increase the rainstorm resistance of the road surface, and reduce the influence of long-term storage of rainwater on the stability of asphalt 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 ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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