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Environmentally-friendly metallic permeable pavement material

A metal-textured, water-permeable pavement technology, applied to roads, roads, fibrous fillers, etc., can solve the problems of poor freeze-thaw cycle and noise reduction performance of concrete pavement, poor resistance of asphalt to water damage, and poor bending and tensile resistance. Achieve the effects of good freeze-thaw cycle performance, bright and diverse colors, and stable performance

Active Publication Date: 2020-04-10
HENAN XIAN NEW BUILDING MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Permeable concrete pavement has the disadvantages of concrete pavement: poor bending resistance and easy cracking
However, because permeable pavement materials generally use single-graded or intermittently graded aggregates, the gaps between particles are large, and the pavement peels off after cracking.
In addition, concrete pavements perform poorly in terms of freeze-thaw cycles and noise reduction
Permeable asphalt pavement has high requirements for road materials, and the asphalt itself has poor resistance to water damage, and it is easy to cause spalling under the action of water
In addition, the concrete pavement is generally off-white, the asphalt pavement is generally black, and the colored pavement on the market is generally dyed in the later stage, which is easy to fade

Method used

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  • Environmentally-friendly metallic permeable pavement material
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  • Environmentally-friendly metallic permeable pavement material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of nano-SiO 2 The preparation method of film-coated flaky aluminum pigments comprises the following steps: ①Add 2.7g of pretreated aluminum powder and 67.5mL of absolute ethanol into a 250 mL four-neck flask, and then heat up to 50°C; Add liquid A and liquid B dropwise into the pressure dropping funnel at the same time. After the dropwise addition, raise the temperature to 80°C, react for 3 hours, and then filter and dry to obtain nano-SiO 2 Film-coated flaky aluminum pigments; solution A is 40.5 mL of TEOS ethanol solution (6g of TEOS), solution B is a mixed solution of 40.5 mL of ethanol, ammonia water and water (4.9 mL of ammonia water diluted with absolute ethanol and 10.8 mL of water ), the dropping speed of liquid A and liquid B is 1 drop / second.

Embodiment 2

[0027] A kind of nano-SiO 2 The preparation method of film-coated flaky aluminum pigments comprises the following steps: ①Add 2.7g of pretreated aluminum powder and 67.5mL of absolute ethanol into a 250 mL four-necked flask, and then heat up to 45°C; Add liquid A and liquid B dropwise into the pressure dropping funnel at the same time. After the dropwise addition, raise the temperature to 80°C, react for 4 hours, and then filter and dry to obtain nano-SiO 2 Film-coated flaky aluminum pigment; solution A is 40.5 mL TEOS ethanol solution (TEOS is 7g), solution B is a mixed solution of 40.5 mL ethanol, ammonia water and water (4.9 mL ammonia water diluted with absolute ethanol and 10.8 mL water ), the dropping speed of liquid A and liquid B is 1 drop / second.

Embodiment 3

[0029] A kind of nano-SiO 2 The preparation method of film-coated flaky aluminum pigments comprises the following steps: ①Add 2.7g of pretreated aluminum powder and 67.5mL of absolute ethanol into a 250 mL four-neck flask, and then heat up to 55°C; Add liquid A and liquid B dropwise into the pressure dropping funnel at the same time. After the dropwise addition, raise the temperature to 80°C, react for 3 hours, and then filter and dry to obtain nano-SiO 2 Film-coated flaky aluminum pigments; solution A is 40.5 mL of TEOS ethanol solution (6.5 g of TEOS), solution B is a mixed solution of 40.5 mL of ethanol, ammonia and water (4.9 mL of ammonia diluted with absolute ethanol and 10.8 mL of water), the dropping speeds of liquid A and liquid B are both 1 drop / second.

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Abstract

The invention provides an environmentally-friendly metallic permeable pavement material. A high-molecular polymer is used as a cementing material, so that the flexural-tensile resistance and the waterpower resistance of a pavement are improved, and the freeze-thaw cycle performance is good; the high-molecular polymers is colorless to highlight the original color of gravels, and the color of natural gravels is used as a decorative color to facilitate coloring; a common pigment is changed into a metal pigment coated with silicon dioxide, so that the metal pigment is bright and diverse in color,has metal texture and stable performances, is not prone to fading, is easy to disperse in a cementing material, and has a small dosage and a good effect; the construction process is simple, the construction period is short, and generally, open passage can be achieved 24 h after construction; and the material has the advantages of large continuous porosity, noise reduction capacity, environmental friendliness, no secondary pollution, and easiness in repairing.

Description

technical field [0001] The invention belongs to the technical field of road construction, and in particular relates to an environment-friendly metallic texture permeable pavement material. Background technique [0002] With the development of society, the scale of cities is getting bigger and bigger, and the performance limitations of impervious pavements are becoming more and more obvious. On the one hand, when it rains, we can only rely on the municipal drainage pipe network to drain the water. When the precipitation is large, the drainage load will be increased, which will aggravate urban waterlogging. On the other hand, it blocks the natural ground evaporation circulation system, which is one of the main reasons for the urban heat island effect. In addition, impermeable pavement has many disadvantages such as increased urban noise and traffic hazards caused by stagnant water. In response to the above problems, permeable pavement materials came into being, and with the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/16C04B20/12C04B20/10C04B38/00E01C7/30E01C7/08C09C1/62C09C3/06C04B111/40C04B111/82
CPCC04B26/16C04B38/0041C04B20/1066C04B20/12E01C7/30E01C7/085C09C1/62C09C3/066C04B2201/50C04B2111/82C04B2111/40C04B2111/00284C04B22/04C04B14/02C04B38/0038C04B20/1059
Inventor 司政凯苏向东张梦闫丽伟曹林方江慧时广贺
Owner HENAN XIAN NEW BUILDING MATERIALS