Freezing-proof bituminous mixture as well as preparation method and construction method thereof

An asphalt mixture and construction method technology, applied in the engineering field, can solve the problems of finding lines, large maintenance works, road peeling and damage to the environment, corrosion of steel fibers and other problems, so as to achieve sustainable development and ensure smooth roads and driving. Safe and economical effect

Inactive Publication Date: 2014-05-07
JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, salt spraying has brought many negative effects to the concrete pavement structure and the environment, mainly manifested in problems such as steel fiber corrosion, pavement peeling damage, and environmental pollution.
Many countries in the world have caused serious damage to roads and bridges due to the use of snow r

Method used

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  • Freezing-proof bituminous mixture as well as preparation method and construction method thereof
  • Freezing-proof bituminous mixture as well as preparation method and construction method thereof
  • Freezing-proof bituminous mixture as well as preparation method and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Material preparation:

[0029] The asphalt is modified asphalt, and the SBS modified asphalt produced by Jiangsu Baoli Asphalt Co., Ltd. is used in this embodiment.

[0030] Crushed stone aggregate, also known as aggregate. One of the main components of asphalt concrete, it mainly acts as a skeleton and reduces the volume change caused by the shrinkage and swelling of the cementitious material during the setting and hardening process, and is also used as a cheap filler for the cementitious material. There are natural aggregates and artificial aggregates, the former such as gravel, pebbles, pumice, natural sand, etc.; the latter such as cinder, slag, ceramsite, expanded perlite, etc. The stone material used in this example is sieved crushed stone, and the crushed stone aggregate is classified according to the commonly used classification requirements. 9.5 ~ 16mm, the ratio of each file is: 24.50% : 13.00% : 34.00% : 28.50%, when adding it is added at the same time. ...

Embodiment 2

[0041] 1. Material preparation:

[0042] The asphalt is modified asphalt, and the SBS modified asphalt produced by Nantong Tongsha Asphalt Technology Co., Ltd. is used in this embodiment.

[0043] For crushed stone aggregates, the crushed stone aggregates are graded according to the commonly used classification requirements. The grades used in this embodiment are: 0-2.36mm, 2.36-4.75mm, 4.75-9.5mm and 9.5-16mm. The ratio is: 27.00% : 12.00% : 32.50% : 28.50%, and they are added at the same time.

[0044] Limestone slag, mainly composed of calcium carbonate, requires limestone slag processed from limestone.

[0045] Mafilon is a powdery solid similar to ore powder sold by Japan Liangyuan Commercial Co., Ltd.

[0046] Mafilon 6%

[0047] Bitumen 4.94%

[0048] Crushed stone aggregate 89.06%

[0049] 2. Prepare the antifreeze asphalt mixture with the above materials according to the following steps:

[0050] Step 1: After heating the gravel aggregate to 200±5°C, dry mix it ...

Embodiment 3

[0054] 1. Material preparation:

[0055] The asphalt is modified asphalt, and the SBS modified asphalt produced by Nantong Tongsha Asphalt Technology Co., Ltd. is used in this embodiment.

[0056] For crushed stone aggregates, the crushed stone aggregates are graded according to the commonly used classification requirements. The grades used in this embodiment are: 0-2.36mm, 2.36-4.75mm, 4.75-9.5mm and 9.5-16mm. The ratio is: 27.50% : 11.50% : 32.40% : 28.60%, and they are added at the same time.

[0057] Limestone slag, mainly composed of calcium carbonate, requires limestone slag processed from limestone.

[0058] Mafilon is a powdery solid similar to ore powder sold by Japan Liangyuan Commercial Co., Ltd.

[0059] Mafilon 7%

[0060] Bitumen 4.85%

[0061] Crushed stone aggregate 88.15%

[0062] 2. Prepare the antifreeze asphalt mixture with the above materials according to the following steps:

[0063] Step 1: After heating the gravel aggregate to 200±5°C, dry mix it ...

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Abstract

The invention relates to a freezing-proof bituminous mixture as well as a preparation method and a construction method thereof, and belongs to the field of engineering technology. According to the invention, Mafilon is added into a bituminous mixture, so that the problem that bituminous pavement freezes in winter is solved, and the freezing point of the frozen pavement can be lowered to relieve freezing of the pavement in winter. The preparation process of the freezing-proof bituminous mixture is simple and convenient, so that the service performance of the bituminous mixture is ensured, and the effect of reliving the freezing of the pavement is achieved. According to the invention, the freezing temperature of the pavement can be lowered to about -3 DEG C to -5 DEGC; a pavement of a place with large snowfall is more easily subjected to snow removal as compared with a common pavement, and a great quantity of human, material and financial resources are reduced; the mixture contains components for relieving freezing, so that the effect of preventing accidental freezing is achieved; the driving safety of a car on the pavement can be improved in winter, and traffic accidents are reduced; compared with the common method for removing ice through spilling salt and the like, the ice removing method adopting the bituminous mixture has the advantages that nearly no damage to the environment is caused, a pavement method for protecting ecology is realized, and the pollution to the environment is reduced; the cost for the management and maintenance of the pavement in winter is lowered, and the better economical efficiency is achieved.

Description

technical field [0001] The invention relates to an antifreeze asphalt mixture and its preparation and construction method, in particular to the preparation of Mafilon antifreeze asphalt mixture and its construction method, and belongs to the field of engineering technology. Background technique [0002] At present, asphalt pavement is the main pavement type of expressways in my country, and has been widely used in major roads such as airport runways, bridge deck pavement, expressways, and urban roads, and most of the various pavement projects under construction are also made of asphalt pavement. However, most areas of our country have freezing phenomena in winter, and the problem of seriously affecting road smoothness and driving safety has become increasingly prominent. Snow and ice on the roads in winter will cause the airport to be closed and shut down, the expressway to be restricted and interrupted, and even cause serious traffic accidents, causing huge losses to people...

Claims

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Application Information

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IPC IPC(8): C04B26/26E01C7/26C04B14/02
Inventor 王捷李华潘芳
Owner JIANGSU EASTTRANS INTELLIGENT CONTROL TECH GRP CO LTD
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