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Anti-cracking basalt fiber asphalt mixture and preparation method thereof
The invention relates to the technical field of asphalt, and discloses an anti-cracking basalt fiber asphalt mixture and a preparation method thereof. The anti-cracking basalt fiber asphalt mixture comprises the following components in percentage by mass: 4.2-4.6% of SBS modified asphalt, 0.26-0.43% of modified basalt fiber and the balance of mineral aggregate, wherein the mineral aggregate is composed of aggregate and mineral powder, and the mineral powder accounts for 1.5-3.0% of the mass of the mineral aggregate. The preparation method comprises the following steps: heating SBS modified asphalt to 165-175 DEG C to a molten state to obtain molten SBS modified asphalt, drying mineral aggregate in an oven to constant weight, adding the dried mineral aggregate and modified basalt fiber intothe molten SBS modified asphalt, and stirring and mixing at 160-170 DEG C for 2-5 minutes to obtain the SBS modified asphalt. The modified basalt fibers are doped into the SBS modified asphalt mixture, so that the SBS modified asphalt mixture has good bonding performance with the SBS modified asphalt, and the cracking resistance of the asphalt mixture is improved.
本发明涉及沥青技术领域，公开了一种抗开裂玄武岩纤维沥青混合料及其制备方法。包括按质量百分比计的下述组分：SBS改性沥青4.2‑4.6%，改性玄武岩纤维0.26‑0.43%，余量为矿料；所述矿料由集料和矿粉组成，所述矿粉占矿料质量的1.5‑3.0%；将SBS改性沥青加热至165‑175℃至熔融状态得到熔融态的SBS改性沥青，然后将矿料置于烘箱中烘干至恒重，将烘干后的矿料和改性玄武岩纤维加入熔融态的SBS改性沥青在160‑170℃下进行搅拌混合2‑5min，即得。本发明在SBS改性沥青混合料中掺入改性玄武岩纤维与SBS改性沥青之间具有较好粘结性能，从而提高沥青混合料的抗开裂性能。
Anti-cracking basalt fiber asphalt mixture and preparation method thereof
The invention relates to the technical field of asphalt, and discloses an anti-cracking basalt fiber asphalt mixture and a preparation method thereof. The anti-cracking basalt fiber asphalt mixture comprises the following components in percentage by mass: 4.2-4.6% of SBS modified asphalt, 0.26-0.43% of modified basalt fiber and the balance of mineral aggregate, wherein the mineral aggregate is composed of aggregate and mineral powder, and the mineral powder accounts for 1.5-3.0% of the mass of the mineral aggregate. The preparation method comprises the following steps: heating SBS modified asphalt to 165-175 DEG C to a molten state to obtain molten SBS modified asphalt, drying mineral aggregate in an oven to constant weight, adding the dried mineral aggregate and modified basalt fiber intothe molten SBS modified asphalt, and stirring and mixing at 160-170 DEG C for 2-5 minutes to obtain the SBS modified asphalt. The modified basalt fibers are doped into the SBS modified asphalt mixture, so that the SBS modified asphalt mixture has good bonding performance with the SBS modified asphalt, and the cracking resistance of the asphalt mixture is improved.
本发明涉及沥青技术领域，公开了一种抗开裂玄武岩纤维沥青混合料及其制备方法。包括按质量百分比计的下述组分：SBS改性沥青4.2‑4.6%，改性玄武岩纤维0.26‑0.43%，余量为矿料；所述矿料由集料和矿粉组成，所述矿粉占矿料质量的1.5‑3.0%；将SBS改性沥青加热至165‑175℃至熔融状态得到熔融态的SBS改性沥青，然后将矿料置于烘箱中烘干至恒重，将烘干后的矿料和改性玄武岩纤维加入熔融态的SBS改性沥青在160‑170℃下进行搅拌混合2‑5min，即得。本发明在SBS改性沥青混合料中掺入改性玄武岩纤维与SBS改性沥青之间具有较好粘结性能，从而提高沥青混合料的抗开裂性能。
Anti-cracking basalt fiber asphalt mixture and preparation method thereof
一种抗开裂玄武岩纤维沥青混合料及其制备方法
HU MINGHUA (author)
2020-11-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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