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Preparation method of reactive normal-temperature asphalt mixture

A technology of normal temperature asphalt and mixture, which is used in chemical processing of tar asphalt/petroleum asphalt/natural asphalt, roads, coagulation pavement paved on site, etc. Curing time, improving pavement strength, and the effect of tight and firm voids

Pending Publication Date: 2022-07-29
河南捷通道路养护技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a reaction-type normal temperature asphalt mixture preparation method, which solves the problem that the initial strength of the repaired road surface cannot be improved in a short time

Method used

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Examples

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Effect test

Embodiment 1

[0025] The embodiment of the present invention provides a method for preparing a reaction-type normal temperature asphalt mixture, which includes the following technical steps: S1. Take imidazoline and unsaturated fatty acid in a molar ratio of 0.5:2.5, and heat the unsaturated fatty acid to 75-80° C., at 80° C. Add imidazoline in batches under the stirring condition of ~100 rev / min, continue to stir for 20 minutes after adding, then stop heating and continue to stir and cool to room temperature to obtain emulsifier, imidazoline is lauryl hydroxyethyl imidazoline, unsaturated The fatty acid is selected from at least one of myristic acid, palmitic acid, trans-oleic acid, ricinoleic acid, oleic acid, linoleic acid, soybean oil, peanut oil, rapeseed oil, cottonseed oil, and linseed oil, wherein, The purity of lauryl hydroxyethyl imidazoline is greater than or equal to 99%, and the unsaturated fatty acid is greater than or equal to 99%. S2. The calcium bentonite and cement are batc...

Embodiment 2

[0027] The embodiment of the present invention provides a method for preparing a reaction-type normal temperature asphalt mixture, which includes the following technical steps: S1. Take imidazoline and unsaturated fatty acid in a molar ratio of 0.5:2.5, and heat the unsaturated fatty acid to 75-80° C., at 80° C. Add imidazoline in batches under stirring conditions of ~100 rev / min, continue stirring for 20 minutes after adding, then stop heating and continue stirring and cooling to room temperature to obtain emulsifier, imidazoline is 1-hydroxyethyl-2-oleyl In the imidazoline, the unsaturated fatty acid is selected from myristic acid, palmitic acid, trans-oleic acid, ricinoleic acid, oleic acid, linoleic acid, soybean oil, peanut oil, rapeseed oil, cottonseed oil, and linseed oil. At least one, the purity of 1-hydroxyethyl-2-oleylimidazoline is greater than or equal to 99%, and the unsaturated fatty acid is greater than or equal to 99%. S2. Calcium bentonite and cement are batch...

Embodiment 3

[0029]The embodiment of the present invention provides a method for preparing a reaction-type normal temperature asphalt mixture, which includes the following technical steps: S1. Take imidazoline and unsaturated fatty acid in a molar ratio of 0.5:2.5, and heat the unsaturated fatty acid to 75-80° C., at 80° C. Add imidazoline in batches under the stirring condition of ~100 rev / min, continue to stir for 20 minutes after adding, then stop heating and continue to stir and cool to room temperature to obtain emulsifier, imidazoline is lauryl hydroxyethyl imidazoline, unsaturated The fatty acid is selected from at least one of myristic acid, palmitic acid, trans-oleic acid, ricinoleic acid, oleic acid, linoleic acid, soybean oil, peanut oil, rapeseed oil, cottonseed oil, linseed oil, lauryl The purity of hydroxyethyl imidazoline is greater than or equal to 99%, and the unsaturated fatty acid is greater than or equal to 99%. S2. Calcium bentonite and cement are batched according to t...

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Abstract

The invention provides a preparation method of a reactive normal-temperature asphalt mixture, and relates to asphalt preparation. The preparation method of the reactive normal-temperature asphalt mixture comprises the following steps: S1, taking imidazoline and unsaturated fatty acid according to a molar ratio of 0.5: 2.5, and heating the unsaturated fatty acid to 75-80 DEG C; a proper amount of emulsifier is doped into asphalt, so that the viscosity of the asphalt is reduced, and the adhesive force of the asphalt and aggregate is increased, so that the cold patch asphalt mixture can be constructed at normal temperature; water is added to promote the chemical reactant to react with effective components in the emulsifier, the initial strength of a repaired pavement can be improved in a short time, meanwhile, due to volume expansion of a reaction product, gaps in a mixture are effectively filled, the gaps in the mixture are compact and firm, the pavement strength is improved, and due to the fact that the reaction is an exothermic reaction, the pavement strength is improved. The water evaporation is accelerated, the pavement curing time is shortened, and the construction progress is accelerated.

Description

technical field [0001] The invention relates to the technical field of asphalt preparation, in particular to a preparation method of a reaction type normal temperature asphalt mixture. Background technique [0002] The use of cold patch asphalt mixture for pothole repair is a major advance in road maintenance technology. In China, the awareness of cold patch technology began after material suppliers entered the Chinese market and vigorously promoted their cold patch technology products. Compared with ordinary hot mix, cold patch asphalt mixture is a kind of high-tech road repair material. Its excellent bonding performance and loose construction performance are its distinctive features different from ordinary repair materials. It can be used all-weather and is suitable for any Repair various types of road surfaces in weather and environment, such as asphalt concrete roads, airport runways, parking lots, bridge expansion joints, etc. As an efficient and convenient road repai...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B24/12C04B24/08C10C3/02E01C7/18E01C11/00
CPCC04B26/26C04B24/08C04B24/128C10C3/026E01C7/187E01C11/005C04B2201/50C04B2111/0075C04B22/08C04B14/28C04B14/14C04B14/26C04B14/06C04B14/048C04B14/04
Inventor 鲁培行马先梅刘贵江
Owner 河南捷通道路养护技术有限公司
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