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Snow-melting and ice-breaking magnetic iron ore bituminous concrete surface layer and construction method thereof

An asphalt concrete and magnetite technology, applied in the field of pavement, can solve the problems of high cost of equipment and raw materials, impact on pavement performance, unsuitable for large-scale construction, etc., achieving a wide range of use, improved safety and environmental protection, excellent The effect of road performance

Inactive Publication Date: 2010-06-23
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Thermal snow melting and ice breaking technology at home and abroad mainly face three problems that are difficult to solve. First, although it is technically feasible, the actual operability is poor. The main reason is that the construction is difficult and not suitable for large-scale construction. Second, the cost of various equipment and raw materials required for snow melting is high; third, the thermal efficiency of various thermal snow melting methods is generally low, the energy waste is serious, and the cost of snow melting is very high
Therefore, there are very few practical applications at home and abroad

Method used

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  • Snow-melting and ice-breaking magnetic iron ore bituminous concrete surface layer and construction method thereof
  • Snow-melting and ice-breaking magnetic iron ore bituminous concrete surface layer and construction method thereof
  • Snow-melting and ice-breaking magnetic iron ore bituminous concrete surface layer and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Taking the total mass of ordinary aggregate and magnetite aggregate as 100kg as an example, the raw materials and their mass ratios for paving the surface layer of magnetite asphalt concrete with a thickness of 2 to 6 cm are as follows:

[0049] Magnetite aggregate 75kg

[0050] Ordinary aggregate 25kg

[0051] Mineral powder 2.6kg

[0052] Bitumen 3.8kg

[0053] The above-mentioned ordinary aggregate is limestone with a particle size of 0.075-2.36mm; the magnetite aggregate is magnetite with a magnet content of 67% and a particle size of 2.36-13.2mm; Calcium carbonate is a mineral powder with a particle size of less than 0.075mm as the main component; the asphalt is SBS I-D grade modified asphalt, and other types of polymer modified asphalt can also be used.

[0054] The construction method of above-mentioned magnetite asphalt concrete surface layer is:

[0055] 1. The original road surface treatment

[0056]Check and confirm the quality of the asphalt concrete in...

Embodiment 2

[0066] Taking the total mass of ordinary aggregate and magnetite aggregate as 100kg as an example, the raw materials and their mass ratios for paving the 2-6cm thick magnetite asphalt concrete surface layer are as follows:

[0067] Magnetite aggregate 67kg

[0068] Ordinary aggregate 33kg

[0069] Mineral powder 2kg

[0070] Bitumen 2kg

[0071] The above-mentioned common aggregate is limestone with a particle size of 0.075 to 16 mm; the magnetite aggregate is magnetite with a magnetite content of 20% and a particle size of 0.075 to 16 mm;

[0072] Its construction method is identical with embodiment 1.

Embodiment 3

[0074] Taking the total mass of ordinary aggregate and magnetite aggregate as 100kg as an example, the raw materials and their mass ratios for paving the 2-6cm thick magnetite asphalt concrete surface layer are as follows:

[0075] Magnetite aggregate 41kg

[0076] Ordinary aggregate 59kg

[0077] Mineral powder 6kg

[0078] Bitumen 6kg

[0079] The above-mentioned common aggregate is limestone with a particle size of 0.075 to 16 mm; the magnetite aggregate is magnetite with a magnetite content of 70% and a particle size of 0.075 to 16 mm;

[0080] Its construction method method is identical with embodiment 1.

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Abstract

The invention relates to a snow-melting and ice-breaking magnetic iron ore bituminous concrete surface layer which comprises the following components by weight part: 100 of aggregate, 2-6 of mineral powder and 2-6 of asphalt, wherein the aggregate is formed by proportioning the following components by weight part: 10-75 of magnetic iron ore aggregate and 25-90 of common aggregate. The construction method comprises the following steps of prior pavement treatment, tack coat oil application, mixing and pavement, compaction and quality test to pave the magnetic iron ore bituminous concrete surface layer with a thickness of 2-6 cm. Through test, the magnetic iron ore bituminous concrete surface layer indicates that various road performance indexes of a structure layer completely conform to the standard requirements issued by the Ministry of Communications, and the microwave heat radiation capacity of the structure layer is strong. The magnetic iron ore bituminous concrete surface layer has the advantages of good road property, simple and convenient construction, low cost, safety, environment protection and the like and can be widely applied to bridges, airport roads, municipal roads, expressways and the like and quickly emit heat to melt sown and break ice under the microwave action.

Description

technical field [0001] The invention belongs to the technical field of pavements such as urban roads, airport roads and highways, and in particular relates to an asphalt concrete surface layer with the function of melting snow and breaking ice. Background technique [0002] The quality of the road surface is an important factor affecting road traffic. Most areas in northern my country and some mountainous areas in the south belong to winter snow-covered areas, and some areas have snow-covered periods of 3 to 4 months. Snow can bring benefits to people, and it can also bring some disasters to people. Snowy and snow-covered areas affect the smooth flow and safety of transportation. In ice and snow weather, the adhesion ability of the road surface is greatly reduced, which is extremely unfavorable to the driving dynamics and safety of the vehicle. According to analysis: Ice and snow often make the brakes of cars fail, the direction is out of control, traffic accidents occur ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35C04B26/26E01C11/24E01C23/06
CPCC04B26/26C04B41/009C04B41/52Y02W30/91C04B14/048C04B14/14C04B14/28C04B14/308C04B20/0076C04B18/12C04B41/4539C04B41/478C04B41/4507C04B28/00
Inventor 沙爱民郭德栋胡力群张成裴建中
Owner CHANGAN UNIV
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