Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ultrathin overlay asphalt concrete and preparation method thereof
The invention relates to the technical field of asphalt concrete preparation, and particularly discloses ultrathin overlay asphalt concrete and a preparation method thereof. The ultra-thin overlay asphalt concrete is prepared from a viscous aggregate and weather-resistant asphalt, the viscous aggregate is prepared from a mineral aggregate and a silane coupling agent, the weight ratio of the mineral aggregate to the silane coupling agent is (49-99): 1, and the weather-resistant asphalt is prepared from the following raw materials in parts by weight: 350-400 parts of asphalt, 20-40 parts of an aliphatic amide curing agent, 80-95 parts of hybrid fibers, and 50-200 parts of epoxy resin; the preparation method comprises the following steps: firstly, preparing the viscous aggregate; mixing the asphalt, the aliphatic amide curing agent, the mixed fiber and the epoxy resin to prepare the weather-resistant asphalt; and mixing the weather-proof asphalt with the viscous aggregate to obtain the ultrathin overlay asphalt concrete. According to the invention, the mixed fibers and aliphatic amides are adopted, so that the prepared asphalt concrete has relatively good low-temperature crack resistance and construction workability; in addition, the preparation method disclosed by the invention is beneficial to improving the construction efficiency.
本申请涉及沥青混凝土制备技术的领域，具体公开了一种超薄罩面沥青混凝土及其制备方法。超薄罩面沥青混凝土由粘性集料和耐候沥青制成，所述粘性集料由矿料和硅烷偶联剂制成，所述矿料和硅烷偶联剂的重量比为(49‑99):1，所述耐候沥青由包括如下重量份的原料制成：沥青350‑400份，脂肪族酰胺类固化剂20‑40份，杂化纤维80‑95份，环氧树脂50‑200份；其制备方法为：先制得粘性集料；再将沥青、脂肪族酰胺类固化剂、杂化纤维和环氧树脂混合制得耐候沥青；然后将耐候沥青与粘性集料混合制得超薄罩面沥青混凝土。本申请采用杂化纤维和脂肪族酰胺类，制备的沥青混凝土获得了较好的低温抗裂性能和施工和易性；另外，本申请的制备方法有助于提高施工效率。
Ultrathin overlay asphalt concrete and preparation method thereof
The invention relates to the technical field of asphalt concrete preparation, and particularly discloses ultrathin overlay asphalt concrete and a preparation method thereof. The ultra-thin overlay asphalt concrete is prepared from a viscous aggregate and weather-resistant asphalt, the viscous aggregate is prepared from a mineral aggregate and a silane coupling agent, the weight ratio of the mineral aggregate to the silane coupling agent is (49-99): 1, and the weather-resistant asphalt is prepared from the following raw materials in parts by weight: 350-400 parts of asphalt, 20-40 parts of an aliphatic amide curing agent, 80-95 parts of hybrid fibers, and 50-200 parts of epoxy resin; the preparation method comprises the following steps: firstly, preparing the viscous aggregate; mixing the asphalt, the aliphatic amide curing agent, the mixed fiber and the epoxy resin to prepare the weather-resistant asphalt; and mixing the weather-proof asphalt with the viscous aggregate to obtain the ultrathin overlay asphalt concrete. According to the invention, the mixed fibers and aliphatic amides are adopted, so that the prepared asphalt concrete has relatively good low-temperature crack resistance and construction workability; in addition, the preparation method disclosed by the invention is beneficial to improving the construction efficiency.
本申请涉及沥青混凝土制备技术的领域，具体公开了一种超薄罩面沥青混凝土及其制备方法。超薄罩面沥青混凝土由粘性集料和耐候沥青制成，所述粘性集料由矿料和硅烷偶联剂制成，所述矿料和硅烷偶联剂的重量比为(49‑99):1，所述耐候沥青由包括如下重量份的原料制成：沥青350‑400份，脂肪族酰胺类固化剂20‑40份，杂化纤维80‑95份，环氧树脂50‑200份；其制备方法为：先制得粘性集料；再将沥青、脂肪族酰胺类固化剂、杂化纤维和环氧树脂混合制得耐候沥青；然后将耐候沥青与粘性集料混合制得超薄罩面沥青混凝土。本申请采用杂化纤维和脂肪族酰胺类，制备的沥青混凝土获得了较好的低温抗裂性能和施工和易性；另外，本申请的制备方法有助于提高施工效率。
Ultrathin overlay asphalt concrete and preparation method thereof
一种超薄罩面沥青混凝土及其制备方法
LI XUEWU (Autor:in) / FENG XUDONG (Autor:in)
01.06.2021
Patent
Elektronische Ressource
Chinesisch
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