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Storage asphalt pavement pit slot repairing material and preparation method thereof

A technology for patching materials and asphalt pavements, which is applied in the field of highway engineering construction materials, can solve problems such as low water stability, low asphalt content, and poor early strength, and achieve good storage, few influencing factors, and enhanced strength and compactness Effect

Active Publication Date: 2018-12-21
辽宁省交通科学研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a storable asphalt pavement pothole repair material and its preparation method for the defects of low asphalt content, easy hardening, poor early strength, low water stability and poor durability of existing asphalt pavement pothole repair materials

Method used

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  • Storage asphalt pavement pit slot repairing material and preparation method thereof
  • Storage asphalt pavement pit slot repairing material and preparation method thereof
  • Storage asphalt pavement pit slot repairing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of storage type asphalt pavement pothole repair material, described repair material is made up of the mixed material of pothole repair stock solution and aggregate, filler, and the percentage of the standard sieve sieve hole of described aggregate is shown in Table 2, according to pothole repair The relationship between the stock solution and the mixed material of the aggregate and the filler shows that the amount of the repair stock solution is 34g.

[0043] Table 2

[0044] Standard sieve hole W(mm)

9.5

4.75

2.36

1.18

0.6

0.3

0.15

0.075

Synthetic gradation (%)

99.7

46.0

17.6

13.9

7.7

5.7

4.9

4.2

[0045] The weights of the composition of the repair stock solution raw materials are respectively: 88g of 70# matrix asphalt, 2.5g of furfural oil, 4g of SBS modifier, 4g of polyamide products with long chain alkyl, 5g of petroleum resin, and -20# of diesel oil. The addition amount is 35% of the bas...

Embodiment 2

[0057] A kind of storage type asphalt pavement pothole repair material, described repair material is made up of the mixed material of pothole repair stock solution and aggregate, filler, and the percentage ratio of the standard sieve sieve hole of described aggregate is shown in Table 3, according to aggregate pit The relationship between the groove repair stock solution and the mixed material of aggregate and filler shows that the dosage of the repair stock solution is 38.0g.

[0058] table 3

[0059] Standard sieve hole W(mm)

9.5

4.75

2.36

1.18

0.6

0.3

0.15

0.075

Synthetic gradation (%)

98.1

54.3

24.3

19.7

15.4

11.6

7.5

4.8

[0060] The weight that described mending stoste raw material forms is respectively: 70# matrix asphalt 85g, furfural extracts oil 3g part, SBS modifier 5g, polyamide product 2.7g of long-chain alkyl, strengthening agent (petroleum resin: coumarone The mass ratio of resin is 2:1) 2g, a...

Embodiment 3

[0072] A kind of storage type asphalt pavement pothole repair material, described repair material is made up of the mixed material of pothole repair stock solution and aggregate, filler, and the percentage of the standard sieve sieve hole of described aggregate is as table 4, according to aggregate pit The relationship between the groove repair stock solution and the mixed material of aggregate and filler shows that the dosage of the repair stock solution is 35.9g.

[0073] Table 4

[0074] Standard sieve hole W(mm)

13.2

9.5

4.75

2.36

1.18

0.6

0.3

0.15

0.075

Synthetic gradation (%)

93.5

82.1

43.2

20.5

13.5

9.8

9.3

6.5

3.5

[0075] The weight that described mending stoste raw material forms is respectively: 70# matrix asphalt 75g, furfural extracts oil 2g part, SBS modifier 2g, the polyamide product 7g of long-chain alkyl, strengthening agent (terpene resin: coumarone The mass ratio of resin is 1:1) 4g,...

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Abstract

The invention discloses a storage asphalt pavement pit slot repairing material and a preparation method thereof, and belongs to the technical field of road engineering building materials. The storageasphalt pavement pit slot repairing material is a gap-graded asphalt mixture which is prepared from a pit slot repairing stock solution and a mixed material of aggregate and filler. The preparation method comprises the following steps: 1) adding a compatibilizer and a tackifier into molten asphalt, performing high-speed shearing after heating and heat preservation, adding a reinforcing agent in the shearing process, and adding a diluent after cooling to obtain the asphalt pit slot repairing stock solution; 2) adding the pit slot repairing stock solution into the mixed material for stirring toobtain the storage asphalt pavement pit slot repairing material. By adopting the method, the produced storage asphalt pavement pit slot repairing material has high storage performance, construction ata low temperature becomes feasible, the construction requirements in winter of northern regions are met, the lowest construction temperature can be up to -30 DEG C, the requirements on the staff andequipment is low, and influence factors are less.

Description

technical field [0001] The invention belongs to the technical field of highway engineering construction materials, and in particular relates to a storage type asphalt pavement pothole repair material and a preparation method thereof. Background technique [0002] With the construction and development of high-grade highways, the demand for modern highway traffic is not limited to all-weather traffic, and higher requirements are put forward in terms of ensuring vehicle safety, smooth driving, and road surface performance. As the most widely used pavement type at present, asphalt pavement plays an important role in it. [0003] As a seamless continuous pavement, asphalt pavement has gradually become the main structure type of highway pavement because of its sufficient mechanical strength, adaptability to various driving loads, stable driving, comfortable driving, low noise and easy maintenance. However, under the repeated coupling action of traffic load, temperature, humidity,...

Claims

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Application Information

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IPC IPC(8): C04B26/26
CPCC04B26/26C04B2201/50C04B2111/0075C04B24/30C04B24/2688C04B24/287C04B24/08C04B24/24C04B14/28C04B14/02
Inventor 任俊达刘楠朱建平刘婧一吴耀东高明李洪斌周健楠
Owner 辽宁省交通科学研究院有限责任公司
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