Rare earth modified cold repaired maintenance material for asphalt pavement, and preparation method

A rare earth modification and asphalt pavement technology, applied in the field of rare earth modified cold repair and maintenance materials for asphalt pavement, can solve the problems of driving safety impact, deterioration of pavement diseases, increase maintenance cost, etc., to ensure national defense security, good mechanical properties, Avoiding the effect of foreign constraints

A rare earth modification and asphalt pavement technology, applied in the field of rare earth modified cold repair and maintenance materials for asphalt pavement, can solve the problems of driving safety impact, deterioration of pavement diseases, increase maintenance cost, etc., to ensure national defense security, good mechanical properties, Avoiding the effect of foreign constraints

CN101092295AInactive Publication Date: 2007-12-26当阳市公路管理段 +1
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A rare earth modified cold repair material for asphalt pavement, which is made of the following mass ratios:

[0048] Rare earth cold patch mixture: 6.2%

[0049] Graded stone: 93.8%

[0050] The proportioning of described rare earth cold patching mixed solution is:

[0051] Bitumen: 80.1%

[0052] Rare Earths: 2.2%

[0053] Waste Kerosene: 14.1%

[0054] Vegetable oil waste: 3.6%

[0055] A preparation method of a rare earth modified cold repair material for asphalt pavement is as follows:

[0056] A. Screen the stones according to LB-10, LB-13, LB-16, and LB-19 gradations to meet the requirements of different asphalt surface thicknesses, and keep the stones dry. The grading range of cold-patch asphalt mixture is shown in Table 1

[0057] B. Heat the road asphalt to 130°C or 133°C or 136°C or 138°C or 140°C.

[0058] C. Mix asphalt, rare earth, waste kerosene, and vegetable oil leftovers from oil factories to prepare a cold patch asphalt mixture.

[0059] D. Tak...

Embodiment 2

[0070] A kind of asphalt pavement rare earth modified cold-patch maintenance material, it is made of following raw material mass ratio:

[0071] Rare earth cold patch mixture: 6.6%

[0072] Graded stone: 93.4%.

[0073] The ratio of the rare earth cold-replenishing mixed solution is:

[0074] Bitumen: 83%

[0075] Rare Earths: 2.3%

[0076] Waste kerosene: 10.6%

[0077] Vegetable oil waste: 4.1%

[0078] The preparation steps are the same as in Example 1.

Embodiment 3

[0080] A kind of asphalt pavement rare earth modified cold-patch maintenance material, it is made of the following raw material mass ratio:

[0081] Rare earth cold patch mixture: 5.6%

[0082] Graded stone: 94.4%.

[0083] The ratio of the rare earth cold-replenishing mixed solution is:

[0084] Bitumen: 79.8%

[0085] Rare Earths: 2.4%

[0086] Waste Kerosene: 13.9%

[0087] Vegetable oil scraps: 3.9%

[0088] The preparation steps are the same as in Example 1.

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Abstract

This invention discloses rare earth-modified cold patching maintainance material for asphalt pavement, and its preparation method. The rare earth-modified cold patching maintainance material is composed of asphalt, rare earth, waste kerosene, grease trash and graded stone chips. The preparation method comprises: drying graded stone chips, mixing with asphalt cold patching mixed solution, and stirring to obtain rare earth-modified cold patching maintainance material. The method has such advantages as high feasibility and easy operation. The rare earth-modified cold patching maintainance material has such advantages as long storage time, good properties, low cost, no pollution, and high economic, environmental and social benefits. The rare earth-modified cold patching maintainance material can be used to repair asphalt pavement in snow and rain.

Description

technical field [0001] The invention relates to a rare earth modified cold patch maintenance material for asphalt pavement, and also relates to a preparation method of the cold patch material. The new cold patch material is convenient and suitable for repairing various road surface layers. Background technique [0002] Rare earths are lanthanide elements in the periodic table of chemical elements - lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), etc., are typical metal elements, and their metal activity is second only to alkali metals and alkaline earths Metal elements are more lively than other metal elements. Rare earth elements can form chemically stable oxides, halides, and sulfides, and are widely used in petroleum, chemical, metallurgy, and electronics industries. [0003] With the rapid development of the traffic industry, the problem of road maintenance in winter has become more and more prominent. Road maintenance works from November to April of th...

Claims

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Application Information

Patent Timeline
26 Dec 2007
Publication
CN101092295A
IPC
C04B26/26; C04B14/02; C04B22/04; C04B24/08
Inventors
吴开权; 胡兆德