Road Cooling Material Combining Heat Reflection and Thermal Resistance

A reflective material and combined technology, applied in the direction of climate change adaptation, can solve problems such as strong solar radiation absorption capacity, achieve the effects of lowering working temperature, reducing rutting damage, and alleviating the urban heat island effect

Active Publication Date: 2021-03-23
重庆奥思德仪器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Asphalt pavement has become the main form of road paving at home and abroad because of its good driving comfort, low noise, short construction period, and low cost. However, a significant shortcoming of asphalt concrete pavement is its strong ability to absorb solar radiation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In the heat reflection and thermal resistance combined road cooling material of this embodiment, the raw materials include the following components by weight: 30 parts of porous asphalt, 10 parts of color filler, 35 parts of aggregate, 5 parts of porous fly ash microbeads, 3 parts of light calcium carbonate, 2 parts of talcum powder, 5 parts of organic bentonite, 1 part of pure acrylic emulsion, 1 part of silicon acrylic emulsion, 1 part of styrene acrylic emulsion, 5 parts of polyvinyl alcohol, 1 part of water glass, lauryl alcohol ester 1 part, 1 part of ethylenediamine methylene phosphoric acid, 1 part of sodium dodecylbenzenesulfonate, 5 parts of polyvinyl chloride resin, 1 part of dispersant;

[0018] Mix asphalt with ash content < 0.01%, 150°C < softening point < 300°C, and small molecule aromatics in a ratio of 1:2, and then pass through a 100°C high-temperature extrusion granulator and cutter to obtain a particle size of 0.1mm, length 1mm asphalt particles; then...

Embodiment 2

[0028] The heat reflection and thermal resistance road cooling material of this embodiment, the raw materials include the following components by weight: 40 parts of porous asphalt, 20 parts of color filler, 45 parts of aggregate, 10 parts of porous fly ash microbeads, light 8 parts of calcium carbonate, 6 parts of talcum powder, 15 parts of organic bentonite, 10 parts of pure acrylic emulsion, 10 parts of silicon acrylic emulsion, 10 parts of styrene acrylic emulsion, 15 parts of polyvinyl alcohol, 5 parts of water glass, 5 parts of lauryl alcohol ester Parts, 5 parts of ethylenediamine methylene phosphoric acid, 5 parts of sodium dodecylbenzenesulfonate, 10 parts of polyvinyl chloride resin, 3 parts of dispersant;

[0029] Mix asphalt with ash content < 0.01%, 150°C < softening point < 300°C, and small molecule aromatics at a ratio of 2:1, and then pass through a 200°C high-temperature extrusion pelletizer and cutter to obtain a particle size of 3mm and a length of 4mm aspha...

Embodiment 3

[0039] The heat reflection and thermal resistance combined road cooling material of this embodiment, the raw materials include the following components by weight: 30 parts of porous asphalt, 20 parts of color filler, 35 parts of aggregate, 10 parts of porous fly ash microbeads, light 3 parts of calcium carbonate, 6 parts of talcum powder, 5 parts of organic bentonite, 10 parts of pure acrylic emulsion, 1 part of silicon acrylic emulsion, 10 parts of styrene acrylic emulsion, 5 parts of polyvinyl alcohol, 5 parts of water glass, 1 lauryl alcohol ester part, 5 parts of ethylenediamine methylene phosphoric acid, 1 part of sodium dodecylbenzene sulfonate, 10 parts of polyvinyl chloride resin, 1 part of dispersant; Described porous fly ash microbead is obtained by following method: Mix the dried fly ash and concentrated sulfuric acid according to the molar ratio of concentrated sulfuric acid to the metal oxide in the fly ash is 0.2, then bake at 280°C for 80 minutes, and then dissol...

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PUM

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Abstract

The invention discloses a heat-reflection-and-heat-resistance-combined road cooling material. The heat-reflection-and-heat-resistance-combined road cooling material is prepared from porous asphalt, color fillings, aggregate, porous fly ash microspheres, light calcium carbonate, talcum powder, organic bentonite, pure acrylic emulsion, silicone acrylic emulsion and the like; a preparing method of the porous fly ash microspheres includes the following steps that dried fly ash and concentrated sulphuric acid are mixed according to the molar ratio of the concentrated sulphuric acid to metal oxide in the fly ash of 0.2-1.6, then the mixture is roasted for 80 min to 120 min at the temperature of 180 DEG C to 280 DEG C, soluble salt in the mixture is dissolved out with the water bath method, and solid-liquid separation is carried out, wherein the water-bath temperature is 45 DEG C to 80 DEG C, and water-bath time is 0.5 h to 1.0 h; the over-high pavement temperature is 'actively' reduced withheat reflection and heat resistance technological means, the working temperature of a pavement structure is reduced, the temperature reduction amplitude can be 15 DEG C to 20 DEG C, the heat storage capacity of a road body can also be reduced, rutting damage of an asphalt concrete pavement is reduced accordingly, the thermal physics characteristic of urban paving is improved, and the increasingly-serious urban heat island effect can be effectively relieved.

Description

technical field [0001] The invention relates to a pavement material, in particular to a pavement cooling material which combines heat reflection and heat resistance for pavement. Background technique [0002] The urban heat island effect has become a serious environmental problem. Its harm is not only manifested in the hot summer weather that it will cause, but also in the health of citizens, air pollution from furniture, natural disasters in local areas, abnormal climate and phenology, and aggravated energy crisis. Asphalt pavement has become the main form of road paving at home and abroad because of its good driving comfort, low noise, short construction period, and low cost. However, a significant disadvantage of asphalt concrete pavement is its strong ability to absorb solar radiation. The newly built asphalt concrete pavement has an absorption rate of solar radiation energy of up to 0.95. Under the load of the wheels in use, the asphalt covering the stone material is w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/32
CPCC04B26/32C04B2111/0075C04B14/022C04B14/305C04B14/303C04B18/085C04B14/28C04B14/042C04B14/104C04B24/2641C04B24/2676C04B24/2623C04B12/04C04B24/08C04B24/003C04B24/20C04B24/2682C04B24/2611C04B24/124C04B14/041Y02A30/60
Inventor 曾文郭琪李艳琼王中长
Owner 重庆奥思德仪器设备有限公司
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