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Indoor performance test method for applying gravel polymer porous material to sponge city

A sponge city and porous material technology, applied in the direction of suspension and porous material analysis, analysis materials, preparation of test samples, etc., to achieve the effect of easy realization and uniform internal pores

Active Publication Date: 2022-02-01
NANJING COMM INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of insufficient application in the prior art, to provide an indoor performance test method for the application of porous gravel high polymer materials in sponge cities, to conduct comprehensive evaluation through water permeability and scouring degree, and then based on the experimental test results Stability, parameters for selecting the optimal group of gravel polymer samples for further research and application in the construction of permeable pavements in sponge cities

Method used

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  • Indoor performance test method for applying gravel polymer porous material to sponge city
  • Indoor performance test method for applying gravel polymer porous material to sponge city
  • Indoor performance test method for applying gravel polymer porous material to sponge city

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as figure 1 Shown, a kind of gravel polymer porous material is applied to the indoor performance test method of sponge city, comprises the following steps:

[0058] Step 1: The laboratory prepares m groups of gravel polymer samples of different specifications, and each group prepares n gravel polymer samples. The parameters of gravel polymer samples in different groups are different, and the parameters of gravel polymer samples in the same group are completely consistent;

[0059] Step 2: Carry out a water permeability test on each gravel polymer sample, and calculate the water permeability index;

[0060] Step 3: Carry out the scouring test on each gravel polymer sample separately, and calculate the scouring degree index;

[0061] Step 4: Based on the comprehensive score C of the water permeability index and scour degree index of each group of gravel polymer samples, and the stability S of each group, the parameters of the best gravel polymer sample group are se...

Embodiment 2

[0093] The difference between embodiment 2 and embodiment 1 is only: after pouring into the trial mold, the step of inserting and tamping in layers is added.

[0094] Specifically, after step 1.3 is poured into the test mold, layered inserting and pounding can make the mixture denser and the internal pores uniform. Because, during the mixing process of the crushed stone polymer porous material, due to the strong viscosity of the adhesive, when the polymer is wrapped on the surface of the crushed stone particles, there is also a certain degree of stickiness between the particles when they are embedded in each other. Therefore, the mixed After the material is poured into the test mold, it cannot be compacted by its own weight alone; if no measures are taken to deal with it, there will be a large number of holes in the formed test piece, resulting in relatively large defects in the composite material itself.

Embodiment 3

[0096] The difference between embodiment 3 and embodiment 1 is that an experimental equipment for scour test is provided.

[0097] Specifically, such as image 3 As shown, the experimental equipment for the scouring test includes: a water pump 1, the water pump 1 is connected to the water inlet pipe 2, and the other end of the water inlet pipe 2 is connected to the scouring pipe 6, and the bottom of the scouring pipe 6 is provided with a water supply for high accumulation of gravel. The hole where the object sample extends into, the hole is provided with a connection part that is threadedly connected with the sample placement pipe 7, the height of the gravel polymer sample is less than the sum of the heights of the sample placement pipe 7 and the flushing pipe 6, the The water inlet pipe 2 is provided with a flow valve 3 and an ultrasonic flowmeter 5, and the other end of the flushing pipe 6 is connected with the outlet pipe 8, and the outlet pipe 8 is provided with a pressure...

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Abstract

The invention provides an indoor performance test method for applying a gravel polymer porous material to a sponge city. The method comprises the following steps: 1, preparing m groups of gravel polymer samples with different specifications in a laboratory, preparing n gravel polymer samples in each group, and determining that the parameters of the gravel polymer samples in different groups are different, and parameters of the gravel polymer samples in the same group are completely consistent; 2, carrying out water permeability testing on each gravel polymer sample, and calculating water permeability indexes; 3, carrying out a scouring property test on each gravel polymer sample, and calculating a scouring degree index; and 4, based on the comprehensive score C of the water permeability index and the scouring degree index of each group of macadam polymer samples and the stability S of each group, selecting parameters of the group of the optimal macadam polymer samples to be preferentially applied to permeable pavement construction of the sponge city. The water permeability and the scouring degree are comprehensively evaluated, and based on the stability of an experimental test result, the parameters of the optimal group of the gravel high polymer sample are selected to be preferentially applied to further research and application of permeable pavement construction of a sponge city.

Description

technical field [0001] The invention relates to the field of road slope protection, in particular to an indoor performance test method for applying a gravel polymer porous material to a sponge city. Background technique [0002] As one of the important facilities for road slope protection, face protection is the main application field of various new technologies, new materials, new processes and new structures in line engineering. With the large-scale construction of engineering construction, people have higher and higher functional requirements for face protection, not only to meet engineering requirements such as strength, stability, safety and durability, but also to fully consider the interaction of biology, the environment and people and function. Therefore, the development of new green surface protection has become an inevitable trend in the development of my country's transportation construction. The construction of ecological green surface protection makes the slope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N15/08G01N3/56
CPCG01N1/28G01N15/0806G01N3/567
Inventor 张健胡晨晨张文斌祁顺彬陈晋中
Owner NANJING COMM INST OF TECH
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