Warm asphalt mixture and preparation method thereof
A technology of warm mix asphalt and mixture, applied in the direction of climate change adaptation, etc., can solve the problem of affecting the high temperature stability or low temperature cracking resistance of asphalt mixture, not giving the viscosity of the asphalt at 135 ℃ of the matrix asphalt, reducing the asphalt mixture. It can improve the low temperature cracking resistance, improve the softening point of asphalt, and improve the elongation of asphalt.
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Embodiment 1
[0042] Put the high molecular weight alkane with carbon number 40, molecular weight 562, and weight 100kg obtained after coal gasification into a closed container, and heat it to 250°C. Keep this temperature and introduce 89 moles of chlorine, and stir for 60 minutes. Obtain the intermediate; weigh 700kg of the four-line extracted oil with an aromatics content of 70%, put it in another airtight container and heat it to 70°C, add 4410g of anhydrous AlCl 3 , stirred for 45min. Then, the above-mentioned intermediate is sprayed into the oil extracted from the four-line extraction in a state of stirring. After all the spraying is carried out, the temperature is kept at 70° C., and the stirring reaction is carried out for 90 minutes to obtain the warm mixing agent used in the present invention. The distribution ratio of each group is shown in Table 1.
[0043] Weigh 7000g of the above-mentioned warm mix agent, add it to Shazhong Crude Oil No. 50 solvent deoiled asphalt with a weigh...
Embodiment 2
[0047] Put the high-molecular alkane obtained by the synthesis reaction after gasification of coal with a carbon number of 90, a molecular weight of 1262, and a weight of 350kg in a closed container, heat it to 370°C, and introduce 116 moles of chlorine while maintaining this temperature, and stir for 100 minutes. Obtain the intermediate; weigh 100kg of catalytic cracking oil slurry with an aromatics content of 63%, put it in another airtight container and heat it to 90°C, add 470g of anhydrous TiCl 4 , stirred for 35min. Then, the above-mentioned intermediate is sprayed into the catalytic cracking oil slurry in the form of mist under stirring, and after all the spraying is carried out, the temperature is kept at 90° C., and the stirring reaction is carried out for 160 minutes to obtain the warm mixing agent used in the present invention. The distribution ratio of each group is shown in Table 1.
[0048] Weigh 500g of the above-mentioned warm mix agent, add it to Liaohe Crude...
Embodiment 3
[0052] Put high-molecular alkane with 100 carbons, 1302 molecular weight and 100kg weight in a closed container, heated to 325°C, and introduce 31 moles of fluorine at this temperature, and stir for 120 minutes. Obtain the intermediate; weigh 350kg of phenolic refined extract oil with an aromatics content of 78%, put it in another airtight container and heat it to 110°C, add 1230g of anhydrous SbCl 3 , stirred for 40min. Then spray the above-mentioned intermediate into the phenol refined extraction oil in the form of mist under stirring. After spraying all the mixture, keep the temperature at 110°C and stir for 135 minutes to obtain the warm mixing agent used in the present invention. The distribution ratio of each group is shown in Table 1.
[0053] Weigh 4000g of the above-mentioned warm mix agent, add it to Tahe Crude Oil No. 70 blended asphalt with a weight of 100kg and a temperature of 150°C, and stir for 50 minutes to obtain the warm mix asphalt (code WB-3) used in the ...
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