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Environment-friendly odorless asphalt mixture and preparation method thereof

An asphalt mixture, an environmentally friendly technology, applied in the field of concrete asphalt, can solve the problems of poor crack resistance, limited use of asphalt concrete materials, general crack resistance, etc., and achieve the effect of stable low temperature

Active Publication Date: 2022-06-03
HUNAN ROAD & BRIDGE CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing deodorizing asphalt adopts deodorizing agent and cement and other raw materials to improve the deodorizing effect of the product, but the crack resistance of the product is average. It is used in high temperature and low temperature environments, and the crack resistance is poor, which limits the use of asphalt concrete materials.

Method used

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  • Environment-friendly odorless asphalt mixture and preparation method thereof

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preparation example Construction

[0023] The preparation method of the fiber modifier of the present embodiment is:

S101: Mix 5-10 parts of silane coupling agent, 1-5 parts of sodium phenolsulfonate and 10-20 parts of water, then add 2-6 parts of chitosan and 1-3 parts of sodium alginate, continue to mix thoroughly , obtain silane coupling agent modification liquid;

S102: adding 10-20 parts of aluminum silicate fibers to 45-55 parts of silane coupling agent modification solution to prepare a fiber coupling agent compound solution;

S103: mixing 5-10 parts of carbon nanotubes and 1-5 parts of graphene, and then adding 10-20 parts of an aqueous hydrochloric acid solution with a mass fraction of 5-9% to prepare a modified solution;

S104: The modification liquid and the fiber coupling agent compound liquid are stirred and reacted according to the weight ratio of 1: (5~9) and mixed, the reaction is completed, washed with water and dried to obtain the fiber modification agent.

[0024] The silane coupling agent...

Embodiment 1

The present invention of this embodiment provides an environment-friendly odor-free asphalt mixture, comprising the following raw materials in parts by weight:

10 parts of asphalt, 30 parts of cement, 5 parts of limestone mineral powder, 4 parts of fiber modifier, 2 parts of stearic acid modified magnesium oxide body, 1 part of deodorant, and 3 parts of ceramic fine powder.

[0031] The particle size of the limestone ore powder in this embodiment is 2mm; the particle size of the ceramic micropowder is 20um; and the deodorant is 3-ethylhexylaldehyde.

[0032] The preparation method of the fiber modifier of the present embodiment is:

S101: Mix 5 parts of silane coupling agent, 1 part of sodium phenolsulfonate and 10 parts of water, then add 2 parts of chitosan and 1 part of sodium alginate, and continue to mix thoroughly to obtain a modified liquid of silane coupling agent;

S102: adding 10 parts of aluminum silicate fibers to 45 parts of silane coupling agent modification sol...

Embodiment 2

The present invention of this embodiment provides an environment-friendly odor-free asphalt mixture, comprising the following raw materials in parts by weight:

20 parts of asphalt, 45 parts of cement, 10 parts of limestone mineral powder, 9 parts of fiber modifier, 5 parts of stearic acid modified magnesium oxide body, 3 parts of deodorant, and 6 parts of ceramic fine powder.

[0040] The particle size of the limestone ore powder in this embodiment is 2.5mm; the particle size of the ceramic micropowder is 30um; the deodorant is 3-ethylhexylaldehyde.

[0041] The preparation method of the fiber modifier of the present embodiment is:

S101: Mix 0 parts of silane coupling agent, 5 parts of sodium phenolsulfonate and 20 parts of water, then add 6 parts of chitosan and 3 parts of sodium alginate, and continue to mix thoroughly to obtain a modified liquid of silane coupling agent;

S102: adding 20 parts of aluminum silicate fibers to 55 parts of silane coupling agent modification s...

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Abstract

The environment-friendly odorless asphalt mixture is prepared from the following raw materials in parts by weight: 10 to 20 parts of asphalt, 30 to 45 parts of cement, 5 to 10 parts of limestone mineral powder, 4 to 9 parts of fiber modifier, 2 to 5 parts of stearic acid modified magnesium oxide body, 1 to 3 parts of odorless agent and 3 to 6 parts of ceramic micro powder. According to the asphalt mixture, the asphalt and the cement are matched to serve as a base body, the limestone mineral powder and the ceramic micro powder serve as mineral aggregate additives, the performance of a product is enhanced, and the fiber modifier and the stearic acid improved magnesium oxide have a synergistic effect and jointly enhance the anti-cracking performance of the asphalt; by adding stearic acid to improve magnesium oxide, the reinforcing effect is achieved, and the low-temperature and high-temperature crack resistance of the product can be stabilized.

Description

technical field [0001] The invention relates to the technical field of concrete asphalt, in particular to an environment-friendly odor-free asphalt mixture and a preparation method thereof. Background technique [0002] Asphalt concrete, commonly known as asphalt concrete, is artificially selected with a certain gradation of mineral materials, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strict control conditions the resulting mixture. According to the different types of aggregates used, they can be divided into crushed stone, gravel, sandy, and slag, and crushed stone is the most common. According to the maximum particle size of the mixture, it can be divided into coarse grains (below 35~40 mm), medium grains (below 20~25 mm), fine grains (below 10~15 mm), sand grains (below 5~7 mm), etc. There are several types of asphalt; the process of heating asphalt for paving roads, repair...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/42C04B24/16C04B24/36C04B14/28C04B18/02
CPCC04B28/00C04B40/0039C04B24/36C04B14/28C04B18/023C04B2201/50C04B2111/00017C04B24/008C04B24/42C04B24/16C04B24/38C04B14/4656C04B14/386C04B14/024C04B22/122C04B22/066C04B24/026C04B24/085C04B24/02C04B24/06Y02W30/91
Inventor 戴勇刘曙光陈冠肖俊杰何淋李赫
Owner HUNAN ROAD & BRIDGE CONSTR GROUP
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