ECONOMICAL EPOXY RESIN MATERIAL FOR EPOXY ASPHALT WITH LOW-TEMPERATURE RESISTANCE AND HIGH FLEXIBILITY AS WELL AS PREPARATION METHOD THEREOF

Abstract

The present disclosure discloses an economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility as well as a preparation method thereof. The material comprises 60 parts of an epoxy resin main agent, 0.4 parts to 1.6 parts of a modifying gent, 31 parts to 36.5 parts of an active curing agent, 0.5 parts to 1.5 parts of a titanate coupling agent, and 1.6 parts to 6.4 parts of a reversible deformation additive.

Claims

1. An economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility, wherein the material comprises following components by a mass fraction: a Component A: 60 parts of an epoxy resin main agent; a Component B: 0.4 parts to 1.6 parts of a modifying agent, 31 parts to 36.5 parts of an active curing agent, 0.5 parts to 1.5 parts of a titanate coupling agent, and 1.6 parts to 6.4 parts of a reversible deformation additive.

2. The economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility according to claim 1, wherein the epoxy resin main agent is selected from any one or a mixture of diphenol propane glycidyl ether resin and diphenol methane glycidyl ether resin.

3. The economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility according to claim 1, wherein the modifying agent is selected from any one or a mixture of more than two from 1,8-diamino-p-montane, 1-piperazine ethylamine, 4,4-diaminodicyclohexylmethane, and 1,3-bis (aminomethyl) cyclohexane.

4. The economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility according to claim 1, wherein the active curing agent is selected from any one or a mixture of more than two from coco alkyl primary amine, 1-amino-9-octadecene, oleyl amine polyoxyethylene ether and lauroyl glutamic acid.

5. The economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility according to claim 1, wherein the titanate coupling agent is selected from any one or a mixture of more than two from isopropyl triisostearoyl titanate, isopropyl trilauryl titanate, isopropyl tris (dodecylbenzenesulfonyl) titanate and isopropyl isostearoyl diacryloyl titanate.

6. The economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility according to claim 1, wherein the reversible deformation additive is selected from any one or a mixture of more than two from acrylonitrile-butadiene rubber, fluorine rubber, liquid acrylate rubber and liquid phenolic resin.

7. A method for preparing the economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility according to claim 1, comprising following steps: (1) mixing the active curing agent, the modifying agent, the titanate coupling agent and the reversible deformation additive, preheating the mixture to 60 C., and stirring and mixing the mixture to obtain the component B; and (2) mixing the component B obtained in Step (1) with the component A and stirring the mixture for 5 minutes at a temperature of 605 C. to obtain the epoxy resin material.

8. The method for preparing the economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility according to claim 7, wherein in Step (1), a stirring temperature for preparing the component B is 805 C., and a stirring time is 3 hours.

9. A use of the epoxy resin material according to claim 1 in preparing an epoxy asphalt for paving highway pavement, concrete bridge pavement and steel bridge pavement.

10. The use according to claim 9, comprising following steps: S1: evenly mixing Components A and B in the epoxy resin material; S2: taking 100 parts of the epoxy resin material obtained by mixing in Step S1 and adding the epoxy resin material into 100 parts of a matrix asphalt, and stirring the mixture at a temperature of 16010 C. for 5 minutes to obtain the epoxy asphalt; S3: mixing the epoxy asphalt obtained in Step S2 with an aggregate and a mineral powder, and stirring the mixture for 1 minute to 2 minutes at a temperature of 17010 C. to obtain an epoxy asphalt mixture; wherein a mass percent of the epoxy asphalt is 4% to 6%, and a mass percent of the aggregate and the mineral powder is 94% to 96%; and S4: spreading the epoxy asphalt mixture obtained in Step S3 on the pavement or the deck, rolling the epoxy asphalt mixture into shape, and curing the shaped epoxy asphalt mixture at a temperature of 5 C. to 50 C. for 36 hours to 96 hours.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and/or other advantages of the present disclosure will become further apparent from the following detailed description of the present disclosure in conjunction with the accompanying drawings and the embodiments.

[0040] FIG. 1 illustrates fluorescence microscopy images (10) of an epoxy asphalt prepared by using an epoxy resin material of the present disclosure before and after curing.

[0041] FIG. 2 illustrates Brookfield viscosity curves for an epoxy asphalt in Example 1 at 160 C. and 180 C.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0042] The present disclosure will be better understood from the following examples.

Example 1

[0043] The material composition is as follows.

[0044] Asphalt: 100 parts of 70# road petroleum asphalt.

[0045] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0046] Component B: 0.4 parts of modifying agent (1-piperazine ethylamine, Jining Sanshi Biotechnology Co., Ltd.), 36.5 parts of active curing agent (1-amino-9-octadecene, Condicechem HuBei), 1.5 parts of titanate coupling agent (isopropyl triisostearoyl titanate, Shandong Linchuang Biotechnology), and 1.6 parts of reversible deformation additive (acrylonitrile-butadiene rubber, in HuBei ChengFeng Chemical Co., Ltd.).

[0047] A method for preparing an epoxy asphalt of Example 1 includes the following steps. A modifying agent, an active curing agent, a titanate coupling agent and a reversible deformation additive that are preheated to 60 C. are added into a flask, and stirred for 3 hours at 80 C. to synthesize a component B; the synthesized component B is mixed with the component A and stirred at the temperature of 605 C. for 5 minutes to obtain an epoxy resin system. The prepared epoxy resin system is added into 70# road petroleum asphalt and stirred for 5 minutes at the temperature of 1605 C. to obtain the epoxy asphalt.

[0048] FIG. 1 illustrates fluorescent microscopic images of an epoxy asphalt prepared from an epoxy resin material of Example 1 before and after curing. It can be seen from FIG. 1 that, before curing, the components of the epoxy asphalt are subjected to sufficient high-speed shearing and stirring to maintain the dispersion among the particles so that the asphalt appears as a continuous phase under fluorescent irradiation, and the epoxy resin appears as dispersed particles; after the curing reaction, the epoxy resin is converted into a continuous phase and forms a stable and compact cross-linked network structure, as a disperse phase, the asphalt is embedded with the epoxy resin in spherical particles, the area of the fluorescent part in the image is calculated using threshold segmentation method, and the proportion of epoxy resin area is 60.89%. It is verified that the three-dimensional network formed by epoxy resin curing and crosslinking at this time is dense and stable, and epoxy asphalt has more stable mechanical properties.

[0049] FIG. 2 illustrates Brookfield viscosity curves for an epoxy asphalt in Example 1 at 160 C. and 180 C. As illustrated in FIG. 1, the viscosity of the epoxy asphalt in Example 1 is permanently lower than 1000 mPa.Math.s within 150 minutes, which satisfies the requirement for the specification: the time for the viscosity to reach 1000 mPa.Math.s is more than 50 minutes. This epoxy asphalt is proved to have a long retention time, be convenient for mixing and paving the epoxy asphalt and aggregate, and satisfy the construction requirements.

Example 2

[0050] The material composition is as follows.

[0051] Asphalt: 100 parts of 70# road petroleum asphalt.

[0052] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0053] Component B: 0.8 parts of modifying agent (1-piperazineethylamine, Jining Sanshi Biotechnology Co., Ltd.), 34.8 parts of active curing agent (1-amino-9-octadecene, Condicechem HuBei), 1.2 parts of titanate coupling agent (isopropyl triisostearoyl titanate, Shandong Linchuang Biotechnology), and 3.2 parts of reversible deformation additive (acrylonitrile-butadiene rubber, HuBei ChengFeng Chemical Co., Ltd.).

[0054] The preparation method of epoxy asphalt in Example 2 is the same as in Example 1.

Example 3

[0055] The material composition is as follows.

[0056] Asphalt: 100 parts of 70# road petroleum asphalt.

[0057] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0058] Component B: 1.2 parts of modifying agent (1-piperazine ethylamine, Jining Sanshi Biotechnology Co., Ltd.), 33.2 parts of active curing agent (1-amino-9-octadecene, Condicechem HuBei), 0.8 parts of titanate coupling agent (isopropyl triisostearoyl titanate, Shandong Linchuang Biotechnology), and 4.8 parts of reversible deformation additive (acrylonitrile-butadiene rubber, HuBei ChengFeng Chemical Co., Ltd.).

[0059] The preparation method of epoxy asphalt in Example 3 is the same as in Example 1.

Example 4

[0060] The material composition is as follows.

[0061] Asphalt: 100 parts of 70# road petroleum asphalt.

[0062] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0063] Component B: 1.6 parts of modifying agent (1-piperazine ethylamine, Jining Sanshi Biotechnology Co., Ltd.), 31.5 parts of active curing agent (1-amino-9-octadecene in Condicechem HuBei), 0.5 parts of titanate coupling agent (isopropyl triisostearoyl titanate, Shandong Linchuang Biotechnology), and 6.4 parts of reversible deformation additive (acrylonitrile-butadiene rubber, HuBei ChengFeng Chemical Co., Ltd.).

[0064] The preparation method of epoxy asphalt in Example 4 is the same as in Example 1.

Comparative Example 1

[0065] The material composition is as follows.

[0066] Asphalt: 100 parts of 70# road petroleum asphalt.

[0067] Component A: 50 parts of China-made diphenol propane glycidyl ether resin.

[0068] Component B: 50 parts of polyamine curing agent (Polyethylene Polyamine, Shandong Xuguang Chemical Co., Ltd.).

[0069] A method for preparing an epoxy asphalt of Comparative Example 1 includes the following steps. The component A and the component B preheated to 60 C. are mixed with each other and stirred for 5 minutes at the temperature of 605 C. to obtain an epoxy resin system; the prepared epoxy resin system is added into 70# road petroleum asphalt and stirred for 5minutes at the temperature of 1605 C. to obtain the epoxy asphalt.

Comparative Example 2

[0070] The material composition is as follows.

[0071] Asphalt: 100 parts of 70# road petroleum asphalt.

[0072] Component A: 40 parts of China-made diphenol propane glycidyl ether resin.

[0073] Component B: 30 parts of polyether amine D230 curing agent and 30 parts of m-xylylenediamine curing agent.

[0074] A method for preparing an epoxy asphalt in Comparative Example 2 includes the following steps. The 70# road petroleum asphalt, the polyether amine D230 curing agent and the m-xylylenediamine curing agent are uniformly stirred through a colloid mill, then the component A is added, uniformly mixed, and cured at the temperature of 60 C. for 12 hours to obtain the epoxy asphalt.

Comparative Example 3

[0075] The material composition is as follows.

[0076] Asphalt: 100 parts of 70# road petroleum asphalt.

[0077] Component A: 61 parts of Japanese epoxy resin KD-HDP.

[0078] Component B: 39 parts of epoxy resin curing agent matched with KD-HDP.

[0079] A method for preparing an epoxy asphalt of Comparative Example 3 includes the following steps. The component A and the component B preheated to 60 C. are mixed with each other and stirred for 5 minutes at the temperature of 605 C. to obtain an epoxy resin system; the prepared epoxy resin system is added into 70# road petroleum asphalt and stirred for 5minutes at the temperature of 1605 C. to obtain the epoxy asphalt.

Comparative Example 4

[0080] The material composition is as follows.

[0081] Component A: 100 parts of American epoxy asphalt.

[0082] Component B: 416 parts of American epoxy asphalt.

[0083] A method for preparing an epoxy asphalt of Comparative Example 4 includes the following steps. The component A preheated to 90 C. is mixed with the component B preheated to 130 C., and stirred for 5 minutes at the temperature of 805 C. to obtain the epoxy asphalt.

[0084] Examples 1 to 4 are epoxy asphalts prepared by adopting the epoxy resin materials of the present disclosure; Comparative Examples 1 and 2 are epoxy asphalt prepared by using China-made epoxy resin and a common curing agent; Comparative Example 3 is an epoxy asphalt prepared using a high property Japanese epoxy resin and a mating curing agent; Comparative Example 4 is an American two-part epoxy asphalt. For the convenience of discussion, in the following description, the epoxy asphalts in Examples 1 to 4 are referred to as the epoxy asphalt of the present disclosure, the epoxy asphalt in Comparative Example 1 is referred to as the commonly-used China-made epoxy asphalt-1, the epoxy asphalt in Comparative Example 2 is referred to as the commonly-used China-made epoxy asphalt-2, the epoxy asphalt in Comparative Example 3 is referred to as the Japanese epoxy asphalt, and the epoxy asphalt in Comparative Example 4 is referred to as the American epoxy asphalt. The tensile strength and elongation at break at 10 C. and 23 C. of Examples 1 to 4 and Comparative Examples 1 to 4 are shown in Table 1.

TABLE-US-00001 TABLE 1 Summary Table of Tensile Property Results for Examples and Comparative Examples Tensile 10 C. 23 C. property Tensile Elongation Tensile Elongation test strength/MPa at break/% strength/MPa at break/% Example 1 7.73 43.58 5.15 182.74 Example 2 9.32 39.03 5.87 162.68 Example 3 9.18 41.67 6.12 134.57 Example 4 8.57 48.14 5.91 159.78 Comparative 6.51 14.58 4.53 79.64 Example 1 Comparative 11.54 15.75 9.89 90.52 Example 2 Comparative 9.14 31.48 7.21 193.32 Example 3 Comparative 5.28 53.28 3.57 220.75 Example 4

[0085] The cost of each epoxy asphalt is converted, and the results are shown in Tables 2 to 9.

TABLE-US-00002 TABLE 2 Cost Table for Epoxy Asphalt in Example 1 Example 1 Unit price Part Cost (1t) Species (yuan/t) (t) (yuan) Asphalt SK-70# road petroleum 3650 0.5 1825 asphalt Ether resin Phoenix diphenol propane 26500 0.3 7950 glycidyl ether resin Modifying 1-piperazine ethylamine, 35000 0.002 70 agent Jining Sanshi Biotechnology Co., Ltd. Active 1-amino-9-octadecene, 25000 0.1825 4562.5 curing agent Condicechem HuBei Titanate Titanate coupling agent, 24000 0.0075 180 coupling Shandong Linchuang agent Biotechnology Reversible Acrylonitrile-butadiene 10000 0.008 80 deformation rubber, in HuBei additive ChengFeng Chemical Co., Total (yuan) Ltd. 14667.5

TABLE-US-00003 TABLE 3 Cost Table for Epoxy Asphalt in Example 2 Example 2 Unit price Parts Cost (1t) Species (yuan/t) (t) (yuan) Asphalt SK-70# road petroleum 3650 0.5 1825 asphalt Ether resin Phoenix 1-piperazine 26500 0.3 7950 ethylamine, Jining Sanshi Biotechnology Co., Ltd. Modifying 1-piperazine ethylamine, 35000 0.004 140 agent Jining Sanshi Biotechnology Co., Ltd. Active 1-amino-9-octadecene, 25000 0.174 4350 curing agent Condicechem HuBei Titanate Titanate coupling agent, 24000 0.006 144 coupling Shandong Linchuang agent Biotechnology Reversible Acrylonitrile-butadiene 10000 0.016 160 deformation rubber, in HuBei ChengFeng additive Chemical Co., Ltd. Total (yuan) 14569

TABLE-US-00004 TABLE 4 Cost Table for Epoxy Asphalt in Example 3 Example 3 Unit price Part Cost (1t) Species (yuan/t) (t) (yuan) Asphalt 70# road petroleum asphalt 3650 0.5 1825 Ether resin Phoenix diphenol propane 26500 0.3 7950 glycidyl ether resin Modifying 1-piperazine ethylamine, 35000 0.006 210 agent Jining Sanshi Biotechnology Co., Ltd. Active 1-amino-9-octadecene, 25000 0.166 4150 curing agent Condicechem HuBei Titanate Titanate coupling agent, 24000 0.004 96 coupling Shandong Linchuang agent Biotechnology Reversible Acrylonitrile-butadiene 10000 0.024 240 deformation rubber, in HuBei ChengFeng additive Chemical Co., Ltd. Total (yuan) 14471

TABLE-US-00005 TABLE 5 Cost Table for Epoxy Asphalt in Example 4 Example 4 Unit price Part Cost (1t) Species (yuan/t) (t) (yuan) Asphalt SK-70# road petroleum 3650 0.5 1825 asphalt Ether resin Phoenix diphenol propane 26500 0.3 7950 glycidyl ether resin Modifying 1-piperazine ethylamine, 35000 0.008 280 agent Jining Sanshi Biotechnology Co., Ltd. Active 1-amino-9-octadecene, 25000 0.1575 3937.5 curing agent Condicechem HuBei Titanate Titanate coupling agent, 24000 0.0025 60 coupling Shandong Linchuang agent Biotechnology Reversible Acrylonitrile-butadiene 10000 0.032 320 deformation rubber, in HuBei additive ChengFeng Chemical Co., Ltd. Total (yuan) 14372.5

TABLE-US-00006 TABLE 6 Cost Table for Epoxy Asphalt in Comparative Example 1 Comparative Unit price Part Cost Example 1 (1t) Species (yuan/t) (t) (yuan) Asphalt SK-70# road petroleum 3650 0.5 1825 asphalt Ether resin Phoenix diphenol propane 26500 0.25 6625 glycidyl ether resin Polyamine Polyethylene Polyamine, 18000 0.25 4500 curing agent Shandong Xuguang Chemical Co., Ltd. Total (yuan) 12950

TABLE-US-00007 TABLE 7 Cost Table for Epoxy Asphalt in Comparative Example 2 Comparative Unit price Part Cost Example 2 (1t) Species (yuan/t) (t) (yuan) Asphalt SK-70# road petroleum 3650 0.5 1825 asphalt Ether resin Phoenix diphenol 26500 0.20 5300 propane glycidyl ether resin Polyether Polyether amine D230, 30000 0.15 4500 amine D230 Shandong Xincheng Chemical Co. Ltd. m- m-xylylenediamine 80000 0.15 12000 xylylenediamine Shandong Duoju Chemical Co. Ltd. Total (yuan) 23625

TABLE-US-00008 TABLE 8 Cost Table for Epoxy Asphalt in Comparative Example 3 Comparative Unit price Part Cost Example 3 (1t) Species (yuan/t) (t) (yuan) Asphalt SK-70# road petroleum 3650 0.5 1825 asphalt Ether resin Japanese epoxy resin KD- 135000 0.5 67500 HDP Active curing Epoxy resin curing agent agent matched with KD-HDP Total (yuan) 69325

TABLE-US-00009 TABLE 9 Cost Table for Epoxy Asphalt in Comparative Example 4 Comparative Unit price Part Cost Example 4 (1t) Species (yuan/t) (t) (yuan) American epoxy American Chemical 71500 1 71500 asphalt A Corporation American epoxy asphalt B Total (yuan) 71500

Comparative Example 5

[0086] In order to verify that the modifying agent, the active curing agent, the titanate coupling agent and the reversible deformation additive in the epoxy resin material for epoxy asphalt have a synergistic effect, the above synergistic effect is illustrated by experimental groups 5-1, 5-2, 5-3, 5-5, 5-6, 5-7 and 5-8, respectively, and the components are as follows.

[0087] Experimental Group 5-1.

[0088] Asphalt: 100 parts of 70# road petroleum asphalt.

[0089] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0090] Component B: 40 parts of active curing agent (1-amino-9-octadecene, Condicechem HuBei).

[0091] Experimental Group 5-2.

[0092] Asphalt: 100 parts of 70# road petroleum asphalt.

[0093] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0094] Component B: 40 parts of modifying agent (1-piperazine ethylamine, Dining Sanshi Biotechnology Co., Ltd.).

[0095] Experimental Group 5-3.

[0096] Asphalt: 100 parts of 70# road petroleum asphalt.

[0097] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0098] Component B: 40 parts of Titanate coupling agent (isopropyl triisostearoyl titanate, Shandong Linchuang Biotechnology).

[0099] Experimental Group 5-4.

[0100] Asphalt: 100 parts of 70# road petroleum asphalt.

[0101] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0102] Component B: 40 parts of reversible deformation additive (acrylonitrile-butadiene rubber, in HuBei ChengFeng Chemical Co., Ltd.).

[0103] Experimental Group 5-5.

[0104] Asphalt: 100 parts of 70# road petroleum asphalt.

[0105] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0106] Component B: 0.9 parts of modifying agent (1-piperazine ethylamine, Dining Sanshi Biotechnology Co., Ltd.), and 39.1 parts of active curing agent (1-amino-9-octadecene, Condicechem HuBei).

[0107] Experimental Group 5-6.

[0108] Asphalt: 100 parts of 70# road petroleum asphalt.

[0109] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0110] Component B: 38.7 parts of active curing agent (1-amino-9-octadecene, Condicechem HuBei), and 1.3 parts of Titanate coupling agent (isopropyl triisostearoyl titanate, Shandong Linchuang Biotechnology).

[0111] Experimental Group 5-7.

[0112] Asphalt: 100 parts of 70# road petroleum asphalt.

[0113] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0114] Component B: 36.6 parts of active curing agent (1-amino-9-octadecene, Condicechem HuBei) and 3.4 parts of reversible deformation additive (acrylonitrile-butadiene rubber, in HuBei ChengFeng Chemical Co., Ltd.).

[0115] Experimental Group 5-8.

[0116] Asphalt: 100 parts of 70# road petroleum asphalt.

[0117] Component A: 60 parts of China-made diphenol propane glycidyl ether resin.

[0118] Component B: 0.8 parts of modifying agent (1-piperazine ethylamine, Dining Sanshi Biotechnology Co., Ltd.), 34.8 part of active curing agent (1-amino-9-octadecene, Condicechem HuBei), 1.2 parts of Titanate coupling agent (isopropyl triisostearoyl titanate, Shandong Linchuang Biotechnology), and 3.2 parts of reversible deformation additive (acrylonitrile-butadiene rubber, in HuBei ChengFeng Chemical Co., Ltd.).

[0119] The epoxy asphalt prepared by the above components is epoxy asphalt 5-1, epoxy asphalt epoxy asphalt 5-3, epoxy asphalt 5-4, epoxy asphalt 5-5, epoxy asphalt 5-6, epoxy asphalt 5-7 and epoxy asphalt 5-8, respectively, and the property data are as shown in Table 10.

TABLE-US-00010 TABLE 10 Property Data Table of Experimental Groups 5-1 to 5-8 Elongation Tensile Time of at break/% strength/MPa viscosity to reach Category (10 C.) (10 C.) 1000 mPa .Math. s/min Experimental 20.12 6.21 35 Group 5-1 Experimental 15.52 5.38 40 Group 5-2 Experimental Group 5-3 Experimental Group 5-4 Experimental 25 7.35 38 Group 5-5 Experimental 19.75 6.53 120 Group 5-6 Experimental 35.73 8.23 38 Group 5-7 Experimental 39.03 9.32 160 Group 5-8

[0120] The following conclusions can be drawn by combining the above data.

[0121] (1) Compared with the tensile property of the epoxy asphalts in Comparative Examples 1 to 4 at the temperature of 10 C. and the tensile property at the temperature of 23 C., the tensile properties of the epoxy asphalt in Examples 1 to 4 generally show that the tensile strength is slightly enhanced, but the elongation at break is greatly reduced, which also reflects the phenomenon of poor low-temperature flexibility of the epoxy asphalt.

[0122] (2) The tensile strength and elongation at break of the epoxy asphalt of the present disclosure in Examples 1 to 4 at the normal temperature and the low temperature are far better than the commonly used China-made epoxy asphalt-1 in Comparative example 1, and are far higher than the requirements of Technical Specification for Design and Construction of Highway Steel Bridge Deck Pavement (JTGT 3364-02-2019) that the tensile strength is not lower than 2.0 MPa and the elongation at break is not lower than 100%.

[0123] (3) Although the commonly used China-made epoxy asphalt-2 in Comparative Example 2 has a higher tensile strength at the normal temperature and the low temperature than the epoxy asphalt of the present disclosure, the commonly used China-made epoxy asphalt-2 has a poorer elongation at break, does not satisfy the specification requirements, and particularly shows an extremely poor low-temperature flexibility at the temperature of 10 C.

[0124] (4) The tensile strengths of the epoxy asphalt in Examples 1 to 4 are similar to that of the Japanese epoxy asphalt in Comparative Example 3 at 23 C., and the elongation at break is slightly lower than that of the Japanese epoxy asphalt; however, the lowest elongation at break in the epoxy asphalt of the present disclosure under a low-temperature condition (10 C.) is 39.03% in Example 2, but still higher than 31.48% in Japanese epoxy asphalt, and all satisfy the specification requirements, and show a more excellent low-temperature flexibility;

[0125] (5) Although the elongation at break of the American epoxy asphalt is slightly larger than that of the epoxy asphalt of the present disclosure at the normal temperature (23 C.) and the low temperature (10 C.), the preparation process of the American epoxy asphalt adopts a warm mixing process, the tensile strength is much lower than that of the epoxy asphalt of the present disclosure, the price is the most expensive, and the cost pert of the epoxy asphalt of the present disclosure is saved by approximately 80 percent compared with that of the American epoxy asphalt on average.

[0126] (6) Tables 2 to 9 show the economic costs (neglecting labor costs) of the epoxy asphalts of the present disclosure in Examples 1 to 4 and the China-made epoxy asphalt-1, the China-made epoxy asphalt-2, the Japanese epoxy asphalt and the American epoxy asphalt in Comparative Examples 1 to 4. It can be seen that the low-temperature property of the epoxy asphalt is better than that of the Japanese epoxy asphalt, and the cost per t is saved by approximately 79 percent on average; the low-temperature flexibility of the epoxy asphalt in the present disclosure is slightly lower than that of American epoxy asphalt, but the cost per t is saved by approximately 80 percent compared with that of the American epoxy asphalt on average; the normal temperature and low-temperature property of the epoxy asphalt of the present disclosure are obviously better than that of Chinese epoxy asphalt-1 and Chinese epoxy asphalt-2, the economic cost is similar to that of Chinese epoxy asphalt-1, and the cost per t is saved by approximately 39 percent compared with China-made epoxy asphalt-2 on average. The epoxy asphalt of the present disclosure shows an excellent economy on the basis of an excellent property.

[0127] (7) Experimental Groups 5-1 to 5-8 are examples characterizing the synergistic effect of the components of the present disclosure and the property data, as shown in Table 10. It can be analyzed from Table 10 that: when the component B only adopts an active curing agent, the prepared epoxy asphalt 5-1 has a relatively poor low-temperature property, the time for the viscosity to reach 1000 mPa.Math.s is too short, and the epoxy asphalt is not suitable for construction; when the component B only adopts the modifying agent, the prepared epoxy asphalt 5-1 has poorer low-temperature property, and the elongation at break at 10 C. is only 15.51%; when the component B only adopts titanate coupling agent or reversible additive, the curing reaction cannot be completed; when the component B adopts the combination of the active curing agent with the modifying agent, and the combination of the titanate coupling agent and the reversible change additive, respectively, the property of the prepared epoxy asphalt is improved in some aspects, but the epoxy asphalt still has defects; when the component B adopts all of the four materials, the prepared epoxy asphalt 5-8 has excellent low-temperature property, flexibility and viscosity property.

[0128] It can be seen from the above conclusions that the epoxy asphalt prepared by the epoxy resin material of the present disclosure has the advantages of low cost, simple composition and preparation process, long construction retention time and contribution to field construction, and the prepared epoxy asphalt has an excellent tensile property, particularly has a significantly improved flexibility in a low-temperature environment, has an excellent road property, and has a great significance for promoting the development of the traffic field, reducing the production cost and improving the economic benefit.

[0129] The present disclosure provides an idea and method of an economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility as well as a preparation method thereof. There are a plurality of methods and ways for achieving the technical solutions, and the above descriptions are only preferred embodiments of the present disclosure. It should be noted that, for those skilled in the art, a plurality of improvements and modifications can be made without departing from the principles of the present disclosure, and these improvements and modifications should be regarded as the protection scope of the present disclosure. All of the components not specified in this embodiment can be implemented by the prior art.