Preparation method of normal-temperature regenerated anti-crack waste asphalt mixture
A waste asphalt and mixture technology, which is applied in the field of normal temperature regeneration and anti-cracking waste asphalt mixture and its preparation, can solve the problems of increased effective bonding components, reduced pavement anti-skid ability, and reduced anti-rutting ability, so as to improve fusion ability, Effects of improving rheological properties and increasing utilization
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Embodiment 1
[0029] (1) Stir and shear 90Kg of epoxy plasticizer epoxy soybean oil, 2Kg of C5 petroleum resin and 5Kg of modifier maleic anhydride at 100°C for 50min so as to mix them uniformly to obtain polymerized oil; (2) at 90°C Next, the polymer oil prepared by step (1) is quickly mixed and miscible with 90Kg and active toughening agent amino-terminated liquid nitrile rubber 10Kg on a shearing machine to obtain a high-toughness filling polymer oil; (3) the step (2) The obtained high-toughness filling polymer oil was cooled to 35°C, and an aqueous solution of vinyltriethoxysilane with a mass concentration of 10% surfactant was added, stirred and mixed evenly, and cured for 200 minutes to obtain the product room temperature anti-crack regeneration agent.
Embodiment 2
[0031] (1) Stir and shear 85Kg of epoxy plasticizer epoxy soybean oil, 3Kg of C9 petroleum resin and 3Kg of modifier maleic anhydride at 95°C for 60min to mix them uniformly to obtain polymerized oil; (2) at 80°C Next, the polymer oil prepared by step (1) is quickly mixed and miscible with 80Kg and active toughening agent amino-terminated liquid nitrile rubber 20Kg on a shearing machine to obtain a high-toughness filled polymer oil; (3) the step (2) The obtained high-toughness filled polymer oil was cooled to 30°C, and an aqueous solution of vinyltriethoxysilane with a mass concentration of 1% surfactant was added, stirred and mixed evenly, and cured for 300 minutes to obtain the product room temperature anti-crack regeneration agent.
Embodiment 3
[0033] (1) Stir and shear 96Kg of epoxy plasticizer epoxy soybean oil, 1Kg of C5 petroleum resin and 7Kg of modifier maleic anhydride at 105°C for 60min to mix them uniformly to obtain polymerized oil; (2) at 100°C Next, the polymer oil prepared by step (1) is quickly mixed and miscible with 100Kg and active toughening agent amino-terminated liquid nitrile rubber on a shearing machine to obtain a high-toughness filling polymer oil; (3) the step (2) The obtained high-toughness filling polymer oil was cooled to 40°C, and an aqueous solution of vinyltriethoxysilane with a mass concentration of 20% surfactant was added, stirred and mixed evenly, and cured for 30 minutes to obtain the product room temperature anti-crack regeneration agent.
[0034] Select waste asphalt concrete milled from municipal roads. The test proportioning scheme is shown in Table 1. First, add the normal temperature anti-cracking rejuvenator prepared in Example 1 to the recycled waste asphalt mixture and mix ...
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