Cold-coating asphalt, and preparation method and construction method thereof

A construction method and asphalt technology, applied in asphalt coatings, coatings, epoxy resin coatings, etc., can solve the problems of toxicity, impossibility of normal temperature construction, and impossibility of cold coating, etc., so as to simplify the pavement paving process, increase the paving speed and quality effect

Active Publication Date: 2015-03-18
GUANGZHOU THE BOND CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the epoxy asphalt disclosed in this patent is a heterogeneous mixture at room temperature, and it cannot be applied at room temperature, that is, it cannot be cold-coated. It needs to adopt the same construction method as road asphalt, after hot stirring, and hot pressing to pave the road surface
[0006] Another similar technology reported in the literature is epoxy coal tar pitch, which is a mixture of coal tar pitch and epoxy resin, but the product has a strong odor, toxicity, and pollution. Due to environmental protection issues, this material has been gradually eliminated.
At present, the epoxy coal tar pitch product technology is only reported to be used in the application field of waterproof coating, and there is no report on the application of pavement paving materials.

Method used

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  • Cold-coating asphalt, and preparation method and construction method thereof
  • Cold-coating asphalt, and preparation method and construction method thereof
  • Cold-coating asphalt, and preparation method and construction method thereof

Examples

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Effect test

Embodiment 1

[0039] The cold-coated asphalt of this embodiment includes part A and part B. The mass ratio of part A to part B is 2:1. In part A: No. 90 petroleum pitch (Maoming Petrochemical petroleum pitch): 25 parts by weight; bisphenol A 50 parts by weight of epoxy resin (Hongchang Electronic Materials Co., Ltd., GELR-128), 25 parts by weight of naphthenic acid (Jiangxi Dongchuan Chemical Co., Ltd., refined naphthenic acid); Part B: Fatty amine curing agent: 50 parts by weight Copies

[0040] Preparation method: The preparation method of Part A is as follows: heat the reactor to 100~120℃, add the active modifier naphthenic acid and No. 90 petroleum pitch in sequence, stir until the pitch is completely melted, and then add the reactive resin after mixing. Bisphenol A epoxy resin, disperse and stir at high speed until it is evenly mixed. When preparing Part A, various well-known additives such as defoamers, stabilizers and dispersants can be added in appropriate amounts without changing the...

Embodiment 2

[0044] The cold-coated asphalt of this embodiment includes part A and part B. The mass ratio of part A to part B is 2.5:1. In part A: No. 90 petroleum pitch (Maoming Petrochemical petroleum pitch): 30 parts by weight; bisphenol F 40 parts by weight of epoxy resin (Hongchang Electronic Materials Co., Ltd., GELR-128), 30 parts by weight of naphthenic acid (Jiangxi Dongchuan Chemical Co., Ltd., refined naphthenic acid); Part B: aromatic amine curing agent: 40 parts by weight Copies

[0045] Preparation method: The preparation method of Part A is: heating the reactor to 100~120℃, adding the active modifier naphthenic acid and No. 90 petroleum pitch in sequence, stirring until the pitch is completely melted, and then adding the reactive resin after mixing. Bisphenol A epoxy resin, disperse and stir at high speed until it is evenly mixed. When preparing Part A, various well-known additives such as defoamers, stabilizers and dispersants can be added in appropriate amounts without chang...

Embodiment 3

[0049] The cold-coated asphalt of the present invention includes part A and part B, wherein the mass ratio of part A to part B is 1.5:1. In part A: No. 70 petroleum pitch (Maoming Petrochemical petroleum pitch): 10 parts by weight; phenolic epoxy resin 60 parts by weight (Hongchang Electronic Materials Co., Ltd., GELR-128), 30 parts of naphthenic acid (Jiangxi Dongchuan Chemical Co., Ltd., refined naphthenic acid); Part B: alicyclic amine curing agent: 60 parts by weight;

[0050] Preparation method: The preparation method of Part A is as follows: heating the reactor to 100-120°C, adding active modifier and asphalt in sequence and stirring until the asphalt is completely melted and mixed uniformly, then adding the reactive resin, dispersing and stirring at high speed until the mixing is uniform. When preparing component A, various well-known additives such as defoamers, stabilizers and dispersants can be added in appropriate amounts without changing the physical properties of comp...

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Abstract

Disclosed are a cold-coating asphalt paved on an anti-skid wear-resistant road surface, and a preparation method and use thereof. The cold-coating asphalt comprises a part A and a part B. The part A is prepared from the following components in parts by weight: 10-30 parts of asphalt, 10-30 parts of active modifier and 10-60 parts of reactive resin; the part B is a curing agent; and the weight ratio of the part A to the part B is (1-5):1. According to the cold-coating asphalt, the petroleum asphalt, the reactive resin and the active modifier are used as the part A and the part A is prepared into a homogeneous-phase liquid mixture; and the curing agent is proportionally added into the part A to prepare the cold-coating asphalt which does not need hot stirring in construction. The cold-coating asphalt can be used as a new material in place of the conventional hot-stirring asphalt for repairing and reconstructing road surfaces and paving high-strength thin functional road surfaces, such as high-anti-skid road surfaces, wear-resistant anti-greasy-dirt road surfaces, draining road surfaces and the like.

Description

Technical field [0001] The present invention relates to a preparation method and application of modified asphalt, in particular, to a cold-coated asphalt that can be coated and constructed at room temperature for (slip-resistant and wear-resistant) high-performance road paving, and a preparation method thereof and Construction method. Background technique [0002] Traditional pavement materials are mainly cement concrete or asphalt concrete (SMA). Asphalt concrete pavement materials generally use hot-mixed hot-melt asphalt and aggregates, and large construction equipment is used to pave the pavement. Traditional pavement materials and construction methods have many defects, such as surface The layer needs to be relatively thick, the construction is complicated, the small-area construction is difficult to repair, and the quality is unstable. The renovation and transformation need to remove the original pavement materials and re-lay it. [0003] Asphalt is a natural or artificially ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L63/00C08K5/09C04B26/26E01C7/20
CPCC09D5/00C08L95/00C08L2555/28C09D195/00C04B26/26C08L2555/40C08L63/00E01C7/20C09D163/00C08K5/09C08L2555/80E01C7/18E01C11/24
Inventor 叶永前
Owner GUANGZHOU THE BOND CHEM
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