Permeable pavement with semi-rigid permeable cushion and construction method thereof

A technology of permeable pavement and construction method, which is applied to the condensable pavement, roads, roads and other directions paved on site, can solve the problems of inconvenience of driving and pedestrians, inclination and dislocation of permeable pavement, achieve good anti-scour performance and avoid erosion and loss , the effect of good durability

Inactive Publication Date: 2019-05-24
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dispersed fine aggregate forms a slurry and flows into the gap of the graded crushed stone foundation cushion. Over time, a void phenomenon is formed under the permeable concrete or permeable bricks, and the permeable road surface is tilted, dislocated and muddy, which brings inconvenience to driving and pedestrians. ; Even, permeable bricks or permeable concrete fracture and damage under load, can not continue to use

Method used

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  • Permeable pavement with semi-rigid permeable cushion and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A construction method for a permeable pavement containing a semi-rigid permeable cushion, combining figure 1 shown, including the following steps:

[0035] 1) Construction of graded crushed stone foundation cushion: according to the construction requirements of ordinary permeable concrete pavement, pave graded crushed stone foundation cushion 2 on road bed 1;

[0036] 2) Preparation of curing agent: in parts by mass, weigh 100 parts of cement, 0.5 part of attapulgite, 0.5 part of polyacrylamide, and 100 parts of water, and mix them uniformly to obtain a liquid curing agent;

[0037] 3) Preparation of permeable mortar: Spray the liquid curing agent prepared in step 2) into the medium sand after sieving the particles with a particle size less than 1 mm, and spray the liquid curing agent prepared in step 2), and stir until the sand is evenly and fully contacted with the curing agent to obtain water permeability Mortar; Wherein, the consumption of liquid curing agent is 1 / ...

Embodiment 2

[0042] A construction method for a permeable pavement containing a semi-rigid permeable cushion, combining figure 1 shown, including the following steps:

[0043] 1) Construction of graded crushed stone foundation cushion: according to the construction requirements of ordinary permeable concrete pavement, pave graded crushed stone foundation cushion 2 on road bed 1;

[0044] 2) Preparation of curing agent: by mass parts, weigh 100 parts of cement, nano-SiO 2 1.5 parts, 0.8 parts of polyacrylamide, 100 parts of water, mix well to obtain a liquid curing agent;

[0045]3) Preparation of permeable mortar: Spray the liquid curing agent prepared in step 2) into the medium sand after sieving the particles with a particle size less than 1 mm, and spray the liquid curing agent prepared in step 2), and stir until the sand is evenly and fully contacted with the curing agent to obtain water permeability Mortar; Wherein, the consumption of liquid curing agent is 1 / 8 of sand quality;

[...

Embodiment 3

[0049] A construction method for a permeable pavement containing a semi-rigid permeable cushion, combining figure 1 shown, including the following steps:

[0050] 1) Construction of graded crushed stone foundation cushion: according to the construction requirements of ordinary permeable concrete pavement, pave graded crushed stone foundation cushion 2 on road bed 1;

[0051] 2) Preparation of curing agent: by mass parts, weigh 100 parts of cement, nano-CaCO 3 1 part, 1 part of hydroxypropyl methylcellulose, 100 parts of water, mix well to obtain a liquid curing agent;

[0052] 3) Preparation of permeable mortar: Spray the liquid curing agent prepared in step 2) into the coarse sand after the particles with a particle size of less than 1mm have been sieved, and spray the liquid curing agent prepared in step 2), and stir until the sand is evenly and fully contacted with the curing agent to obtain water permeability Mortar; Wherein, the consumption of liquid curing agent is 1 / 4...

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Abstract

The invention discloses a permeable pavement with a semi-rigid permeable cushion. The permeable pavement with the semi-rigid permeable cushion comprises a graded gravel foundation cushion paved on a road bed, a semi-rigid permeable mortar cushion located above the graded gravel foundation cushion, and a rigid permeable pavement structure layer located above the semi-rigid permeable mortar cushion.The construction method of the permeable pavement with the semi-rigid permeable cushion includes the steps of construction of the graded gravel foundation cushion, preparation of curing agents, preparation of permeable mortar, construction of the semi-rigid permeable mortar cushion, and construction of the permeable pavement structure layer. With the construction method thereof to cure a sand cushion to form a continuous and porous semi-rigid whole, the permeable pavement with the semi-rigid permeable cushion has the advantages of having good anti-erosion performance and durability, avoidingerosion and loss of the sand cushion, preventing permeable bricks or permeable concrete from penetrating rainwater, allowing the sand of the underlying sand cushion to be washed into the graded gravelfoundation cushion to avoid voids under the permeable bricks or the permeable concrete, and preventing inclination, dislocation and mud on a surface layer.

Description

technical field [0001] The invention relates to a permeable pavement with a semi-rigid permeable cushion and a construction method thereof, belonging to the field of road construction. Background technique [0002] With the development and construction of urbanization in our country, the number of concrete pavement is also increasing. While bringing convenience to travel, it also brings a series of problems. For example, poor ground drainage in rainy days often leads to serious water accumulation on the road, causing urban Waterlogging seriously affects pedestrian travel and vehicle traffic; surface water cannot replenish groundwater well, leading to a drop in groundwater level and affecting the growth of surface plants; the urban surface is wrapped by impermeable pavement, which easily produces a "heat island effect". [0003] As the country and localities are vigorously promoting the construction of "sponge cities" and low-impact development of rainwater systems from top t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32E01C19/28E01C11/22C04B28/00
Inventor 姬永生石博文陈豪高芙蓉周样梅严久鑫徐之山陈鑫冰郭煜诚时方鸣刘本琳肖理坤吴守荣刘翔宇徐圣楠张莉张领雷刘丽丽
Owner CHINA UNIV OF MINING & TECH
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