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Coral sand-doped AC-13 normal-temperature asphalt mixture and preparation method thereof

A technology of normal temperature asphalt and mixture, applied in the field of asphalt pavement materials, can solve problems such as high strength, and achieve the effect of saving costs

Pending Publication Date: 2021-11-23
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the fact that the existing room temperature asphalt mixture cannot form higher strength in a short time

Method used

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  • Coral sand-doped AC-13 normal-temperature asphalt mixture and preparation method thereof
  • Coral sand-doped AC-13 normal-temperature asphalt mixture and preparation method thereof

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preparation example Construction

[0052] As mentioned above, the second aspect of the present invention provides a kind of preparation method of aforementioned mixture, it is characterized in that, this method comprises:

[0053] (1) heating 66 parts by weight of reactive type normal temperature liquid pitch to 70-100°C;

[0054] (2) The reaction type normal temperature liquid asphalt obtained in step (1) is mixed with the coral sand of 22-98 parts by weight, the coarse aggregate of 820-860 parts by weight and the fine aggregate of 330-400 parts by weight in a mixing pot The first mixing obtains the mixture A;

[0055] (3) The mixture A obtained in step (2) is mixed with the curing agent of 10-15 parts by weight and the ore powder of 55-65 parts by weight in a mixing pot to obtain the normal temperature asphalt mixture;

[0056] The conditions for the first mixing include: the temperature is 15-100°C, the stirring speed is 30-40rpm, and the time is 1-3min;

[0057] The conditions for the second mixing includ...

Embodiment 1

[0067] (1) According to the formula of 20 parts by weight of ricinoleic acid, 8 parts by weight of sodium laurylalanine, 4 parts by weight of low-molecular polyamide, and 25 parts by weight of calcium lignosulfonate, each raw material is weighed and mixed to obtain a reactive type solvent;

[0068] According to the formula of 45 parts by weight of 70# base asphalt, 25 parts by weight of water-based epoxy resin, 40 parts by weight of reactive solvent and 30 parts by weight of n-dodecyl triethoxysilane, the raw materials were weighed and mixed to obtain reactive normal temperature liquid pitch ;

[0069] (2) Take 66 parts by weight of the reaction-type room temperature liquid pitch prepared in step (1), and heat it to 80° C.;

[0070] (3) Add respectively 7.8 parts by weight of coarse coral sand, 15.9 parts by weight of fine coral sand, 850.2 parts by weight of coarse limestone and 392.1 parts by weight of fine limestone in the mixing pot of the reaction type normal temperature...

Embodiment 2

[0074] (1) According to the formula of 20 parts by weight of ricinoleic acid, 8 parts by weight of sodium laurylalanine, 4 parts by weight of low-molecular polyamide, and 25 parts by weight of calcium lignosulfonate, each raw material is weighed and mixed to obtain a reactive type solvent;

[0075] According to the formula of 45 parts by weight of 70# base asphalt, 25 parts by weight of water-based epoxy resin, 40 parts by weight of reactive solvent and 30 parts by weight of n-dodecyl triethoxysilane, the raw materials were weighed and mixed to obtain reactive normal temperature liquid pitch ;

[0076] (2) Take 66 parts by weight of the reaction-type room temperature liquid pitch prepared in step (1), and heat it to 80° C.;

[0077] (3) Add respectively 15.6 parts by weight of coarse coral sand, 31.8 parts by weight of fine coral sand, 842.4 parts by weight of coarse limestone and 376.2 parts by weight of fine limestone in the mixing pot of the reaction type normal temperatur...

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Abstract

The invention relates to the field of asphalt pavement materials, and discloses a coral sand-doped AC-13 normal-temperature asphalt mixture and a preparation method thereof. The mixture contains two or more of the following raw materials which are stored in a mixed manner or independently stored in an effective control amount: reaction type normal-temperature liquid asphalt, coral sand, coarse aggregate, fine aggregate, mineral powder and a curing agent. According to the normal-temperature asphalt mixture prepared by the method, coral sand with different mixing amounts is used for replacing part of fine aggregate, so that the water stability of the asphalt mixture is improved, the use amount of common gravel is saved, the normal-temperature asphalt mixture is suitable for island road engineering construction, and the cost is saved.

Description

technical field [0001] The invention belongs to the field of asphalt pavement materials, and in particular relates to an AC-13 normal-temperature asphalt mixture mixed with coral sand and a preparation method thereof. Background technique [0002] Since most of the islands and reefs are far away from the mainland and the transportation is inconvenient, if ordinary sandstone aggregates are transported from the inland for the construction of islands and reefs, the cost and construction period will inevitably be increased, which will seriously affect the construction of islands and reefs. In addition, military airfield pavements usually need to be rapidly formed and have a certain strength to meet military requirements. However, due to the special geographical location of the islands and reefs, coral sands are in the majority and are easy to obtain materials. Therefore, coral sands can be used as fine aggregates in construction projects to replace some ordinary sand and gravel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B14/28
CPCC04B26/26C04B14/28C04B2111/0075C04B14/104C04B14/202C04B14/10C04B14/042C04B7/02C04B7/32C04B12/02C04B7/12
Inventor 李九苏武宏姗戴聆春姜舜君刘泽洋左思明
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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