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Preparation method of prefabricated pouring type asphalt repairing material

A repairing material and pouring technology, applied in bridge materials, bridge maintenance, tracks, etc., can solve the technical problems of steel bridge deck pavement, difficult to solve, difficult maintenance, long construction period, etc., to improve road and bridge pouring paving. The quality of operation and maintenance services, the effect of improving the high temperature bearing capacity and anti-aging performance of the pavement, and the rapid opening of traffic

Inactive Publication Date: 2020-07-03
JIANGSU SINOROAD ENG TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many technical problems in the maintenance and new construction of steel bridge deck pavement that are difficult to solve
At present, most of the targeted maintenance methods and maintenance materials are in the stage of theoretical research, especially pouring asphalt pavement, due to its complicated construction process and the need to use special equipment, it is difficult to maintain
For the repair of pouring asphalt pavement pits, since special equipment is required for on-site mixing, the cost is high, the operation is difficult, and the construction period is long, so it is difficult to popularize and apply in actual projects

Method used

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  • Preparation method of prefabricated pouring type asphalt repairing material
  • Preparation method of prefabricated pouring type asphalt repairing material
  • Preparation method of prefabricated pouring type asphalt repairing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like Figure 4 As shown, the prefabricated pouring pit repair structure includes from bottom to top: steel plate 1, thermoplastic resin waterproof bonding layer 2, prefabricated pouring test block 3, seam hot-melt splicing 4, spreading heat radiation-anti-aging nanocomposite Material 5, high-strength crushed stone 6.

[0035] Its preparation method is as follows:

[0036] Step 1. Use the special mixer DF-8 to mix the oil-rich castable asphalt mixture for 70 minutes; then pour the mixture into a spherical stainless steel mold to prefabricate the castable test block; after cooling, demould at room temperature and store in sealed storage in the box, such as figure 2 shown.

[0037] Among them, calculated in parts by mass, the oil-rich castable asphalt mixture adopts GA-10 gradation, and the asphalt ratio is 15%; the castable cement is blended with 65 parts of 30# hard straight asphalt and 35 parts of lake asphalt The mineral materials used are basalt aggregate and lim...

Embodiment 2

[0044] like Figure 4 As shown, the prefabricated pouring pit repair structure includes from bottom to top: steel plate 1, thermoplastic resin waterproof bonding layer 2, prefabricated pouring test block 3, seam hot-melt splicing 4, spreading heat radiation-anti-aging nanocomposite Material 5, high-strength crushed stone 6.

[0045] Its preparation method is as follows:

[0046] Step 1. Use the special mixer DF-8 to mix the oil-rich castable asphalt mixture for 70 minutes; then pour the mixture into a spherical stainless steel mold to prefabricate the castable test block; after cooling, demould at room temperature and store in sealed storage in the box.

[0047] Among them, calculated in parts by mass, the oil-rich castable asphalt mixture is graded with GA-10, and the oil-stone ratio is 20%; the castable cement is blended with 75 parts of 30# hard straight asphalt and 25 parts of lake asphalt The mineral materials used are basalt aggregate and limestone powder, 2# aggregat...

Embodiment 3

[0054] like Figure 4 As shown, the prefabricated pouring pit repair structure includes from bottom to top: steel plate 1, thermoplastic resin waterproof bonding layer 2, prefabricated pouring test block 3, seam hot-melt splicing 4, spreading heat radiation-anti-aging nanocomposite Material 5, high-strength crushed stone 6.

[0055] Its preparation method is as follows:

[0056] Step 1. Use the special mixer DF-8 to mix the oil-rich castable asphalt mixture for 70 minutes; then pour the mixture into a spherical stainless steel mold to prefabricate the castable test block; after cooling, demould at room temperature and store in sealed storage in the box.

[0057] Among them, calculated in parts by mass, the oil-rich castable asphalt mixture is graded with GA-10, and the oil-stone ratio is 20%; the castable cement is blended with 75 parts of 30# hard straight asphalt and 25 parts of lake asphalt The mineral materials used are basalt aggregate and limestone powder, 2# aggregat...

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Abstract

The invention discloses a preparation method of a prefabricated pouring type asphalt repairing material. The method comprises the following steps: preparing an oil-rich pouring type asphalt mixture, prefabricating a standard test block on a backfield, demolding and storing at normal temperature, heating and remelting by microwaves on site, coating with a thermoplastic resin waterproof bonding layer, backfilling and repairing an original paving pit slot, hot-melting and splicing joints, spreading a thermal radiation-anti-aging nano-composite material, pressing in high-strength gravels and the like. According to the method, a pouring type asphalt mixing backfield prefabrication-field heating remelting technology is adopted, and high bonding strength, excellent water stability and fatigue cracking resistance are achieved, so that the problems that the extremely-high temperature of the surface of a steel bridge deck pavement reaches 70 DEG C or above, and ruts and displacement occur shorttime after operation are solved; and on-site rapid maintenance and rapid traffic opening are achieved, large-scale mixing construction equipment is not needed, and the pavement maintenance convenienceunder domestic large traffic flow is greatly improved.

Description

technical field [0001] The invention relates to the technical field of road and bridge pavement, in particular to a preparation method of a prefabricated pouring asphalt repair material. Background technique [0002] There are many technical problems in the maintenance and new construction of steel bridge deck pavement that are difficult to solve. At present, most of the targeted maintenance methods and maintenance materials are in the stage of theoretical research, especially pouring asphalt pavement, which is difficult to maintain due to its complicated construction process and the need to use special equipment. For the repair of pouring asphalt pavement pits, since special equipment is required for on-site mixing, the cost is high, the operation is difficult, and the construction period is long, so it is difficult to popularize and apply in actual projects. [0003] Using traditional pouring asphalt mixture for pothole repair, under high temperature and heavy load condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/18E01D19/12E01D22/00E01B37/00C04B26/26C04B41/69E01D101/30C04B111/72
CPCC04B26/26C04B41/5122C04B41/69C04B2111/0075C04B2111/72E01B37/00E01C7/187E01D19/125E01D22/00E01D2101/30C04B14/14C04B14/28C04B24/123C04B41/5116C04B41/5041C04B41/5049C04B41/5037C04B41/5027C04B41/4578C04B41/4545
Inventor 周伟张辉李娣孔燕罗瑞林孙呈齐赵梦龙陈支东
Owner JIANGSU SINOROAD ENG TECH RES INST CO LTD