Cold filling asphalt mixture and preparation method thereof

A technology of cold patching asphalt and mixture, applied in the field of road engineering materials, which can solve the problems of inapplicable hot patching, poor water stability, and low initial strength, and achieve long service life, stable performance, and high initial strength.

Inactive Publication Date: 2016-11-16
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In my country, hot-mix asphalt mixture is generally used for repairing pits and other diseases. The hot-repair method has the advantages of good repair quality, high durability, and the repaired road surface can withstand heavy-duty traffic. However, the hot-repair method is not suitable for Construction under humid and low temperature environment, and pollute the environment
However, the cold-patch asphalt mixture currently on the market has low initial strength, poor water stability, and short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: A kind of cold-patched asphalt mixture, the composition of the mixture includes cold-patched asphalt liquid and mineral material; the composition of the cold-patched asphalt liquid includes SBS modified additives, diluents, petroleum resins, polymerization inhibitors, and asphalt; The weight percent of each component of the cold patch asphalt liquid in the cold patch asphalt liquid is: 4% of SBS modified additive, 14% of diluent, 4% of petroleum resin, 1.8% of polymerization inhibitor, and the balance is asphalt. The asphalt is No. 90 A grade asphalt.

[0009] The preparation method of a cold-patch asphalt mixture is as follows: according to the composition ratio of the above-mentioned components, the asphalt is heated to 160-170°C, SBS modification additive is added, and a high-speed asphalt shearer is used to stir for 40 minutes; diluent, Petroleum resin and polymerization inhibitor were stirred for 20 minutes, poured into hot asphalt at 160~170°C, and s...

Embodiment 2

[0010] Embodiment 2: A kind of cold-patched asphalt mixture, the composition of the mixture includes cold-patched asphalt liquid and mineral material; the composition of the cold-patched asphalt liquid includes SBS modified additives, diluents, petroleum resins, polymerization inhibitors, and asphalt; The weight percentage of each component of the cold-patched asphalt liquid is: 6% of SBS modified additive, 12% of diluent, 3.5% of petroleum resin, 2% of polymerization inhibitor, and the balance is asphalt. The asphalt is No. 90 A grade asphalt.

[0011] The preparation method of a cold-patch asphalt mixture is as follows: according to the composition ratio of the above-mentioned components, the asphalt is heated to 160-170°C, SBS modification additive is added, and a high-speed asphalt shearer is used to stir for 40 minutes; diluent, After stirring petroleum resin and polymerization inhibitor for 20 minutes, pour it into hot asphalt at 160~170°C, and stir for another 20 minute...

Embodiment 3

[0012] Embodiment 3: A kind of cold-patched asphalt mixture, the composition of the mixture includes cold-patched asphalt liquid and mineral material; the composition of the cold-patched asphalt liquid includes SBS modified additives, diluents, petroleum resins, polymerization inhibitors, and asphalt; The weight percentage of each component of the cold patch asphalt liquid in the cold patch asphalt liquid is: 5% of SBS modified additive, 15% of diluent, 3% of petroleum resin, 1.5% of polymerization inhibitor, and the balance is asphalt. The asphalt is No. 90 A grade asphalt.

[0013] The preparation method of a cold-patch asphalt mixture is as follows: according to the composition ratio of the above-mentioned components, the asphalt is heated to 160-170°C, SBS modification additive is added, and a high-speed asphalt shearer is used to stir for 40 minutes; diluent, After stirring the petroleum resin and polymerization inhibitor for 20 minutes, pour it into hot asphalt at 160~17...

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PUM

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Abstract

The invention provides a cold filling asphalt mixture, which is characterized by being prepared from 4 to 6 percent of SBS modifying agents, 12 to 15 percent of diluters, 3 to 4 percent of petroleum resin, 1.5 to 2 percent of polymerization inhibitors and the balance No.90 grade asphalt. The asphalt is heated to 160 to 170 DEG C; the SBS modifying agents are added; a high-speed asphalt shearing instrument is used for stirring for 40 minutes; the diluters, the resin and the polymerization inhibitors are stirred for 20 minutes; then, the mixture is poured into hot asphalt being 160 to 170 DEG C; the stirring is performed for 20 minutes; the mixture is put into a 160-DEG C constant temperature box for developing for at least 0.5h; the mineral aggregates are put into a baking oven being 105 DEG C + / - 5 DEG C for at least 4h to 6h to be dried to the constant weight; under the condition of the best asphalt consumption, the mixture is stirred according to a hot stirring asphalt mixture stirring method; the total mixing time is 3 minutes; the mixture is cooled through being put in an environment at the room temperature; after the stirring, the mixture is stored by using a packaging bag.

Description

technical field [0001] The invention belongs to the field of road engineering materials, and in particular relates to a cold-patch asphalt mixture and a preparation method thereof. Background technique [0002] In my country, hot-mix asphalt mixture is generally used for repairing pits and other diseases. The hot-repair method has the advantages of good repair quality, high durability, and the repaired road surface can withstand heavy-duty traffic. However, the hot-repair method is not suitable for Construction under humid, low temperature environment, and pollute the environment. However, the cold-patch asphalt mixture currently on the market has low initial strength, poor water stability, and short service life. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention proposes a cold-patch asphalt mixture and a preparation method thereof. [0004] The technical solution adopted in the present invention is: a cold-patched...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B111/72
CPCC04B26/26C04B2111/0075C04B2111/72C04B24/2676C04B2103/0068C04B2103/008C04B14/00
Inventor 孙兆辉吴永付马尚王铁滨王森霍继辉王芝松张硕李青
Owner SHENYANG JIANZHU UNIVERSITY
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