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Repair type highway pavement asphalt mixture and preparation method thereof
The invention discloses a repair type highway pavement asphalt mixture, and relates to the technical field of asphalt mixtures. The repair type highway pavement asphalt mixture comprises 250 to 300 parts of aggregate, 25 to 30 parts of asphalt, 0.25 to 0.5 part of polyester fibers, 10 to 15 parts of rubber powder, 3 to 8 parts of a tackifier, 3 to 8 parts of an adhesive and 1 to 5 parts of siliconcarbide. The preparation method comprises the following steps: S1, putting the aggregate into a drying barrel, stirring for 2-2.5 hours at the speed of 1500-2000rpm and the temperature of 100-120 DEGC, and drying, S2, putting the dried aggregate, tackifier, adhesive, rubber powder, polyester fibers and silicon carbide into a stirring cylinder, and stirring for 15-30 seconds at the rotating speedof 1500-2000rpm, and S3, heating asphalt to 155-200 DEG C, putting the heated asphalt into the stirring cylinder in the step S2, performing stirring at a rotating speed of 1200-1500rpm for 5-10min, performing uniform stirring, and performing discharging so as to obtain the modified asphalt. The product prepared by the invention has the advantages of effectively relieving rut diseases and reducingthe road maintenance cost.
本发明公开了一种修复型高速路面沥青混合料,涉及沥青混合料技术领域。其技术要点是:该修复型高速路面沥青混合料包括:集料250‑300份;沥青25‑30份;聚酯纤维0.25‑0.5份;橡胶胶粉10‑15份;增粘剂3‑8份;胶黏剂3‑8份;碳化硅1‑5份。其制备方法为:S1,将集料投入烘干桶内,于1500‑2000rpm、100‑120℃下搅拌2‑2.5h,进行烘干;S2,将干燥后的集料、增粘剂、胶黏剂、橡胶胶粉、聚酯纤维和碳化硅投入搅拌缸中,于1500‑2000rpm转速下搅拌15‑30s;S3,将沥青加热至155‑200℃,并投入到S2中的搅拌缸中,于1200‑1500rpm转速下搅拌5‑10min,搅拌均匀后排出即得。本申请制备的产品具有有效减轻车辙病害、降低道路养护成本的优点。
Repair type highway pavement asphalt mixture and preparation method thereof
The invention discloses a repair type highway pavement asphalt mixture, and relates to the technical field of asphalt mixtures. The repair type highway pavement asphalt mixture comprises 250 to 300 parts of aggregate, 25 to 30 parts of asphalt, 0.25 to 0.5 part of polyester fibers, 10 to 15 parts of rubber powder, 3 to 8 parts of a tackifier, 3 to 8 parts of an adhesive and 1 to 5 parts of siliconcarbide. The preparation method comprises the following steps: S1, putting the aggregate into a drying barrel, stirring for 2-2.5 hours at the speed of 1500-2000rpm and the temperature of 100-120 DEGC, and drying, S2, putting the dried aggregate, tackifier, adhesive, rubber powder, polyester fibers and silicon carbide into a stirring cylinder, and stirring for 15-30 seconds at the rotating speedof 1500-2000rpm, and S3, heating asphalt to 155-200 DEG C, putting the heated asphalt into the stirring cylinder in the step S2, performing stirring at a rotating speed of 1200-1500rpm for 5-10min, performing uniform stirring, and performing discharging so as to obtain the modified asphalt. The product prepared by the invention has the advantages of effectively relieving rut diseases and reducingthe road maintenance cost.
本发明公开了一种修复型高速路面沥青混合料,涉及沥青混合料技术领域。其技术要点是:该修复型高速路面沥青混合料包括:集料250‑300份;沥青25‑30份;聚酯纤维0.25‑0.5份;橡胶胶粉10‑15份;增粘剂3‑8份;胶黏剂3‑8份;碳化硅1‑5份。其制备方法为:S1,将集料投入烘干桶内,于1500‑2000rpm、100‑120℃下搅拌2‑2.5h,进行烘干;S2,将干燥后的集料、增粘剂、胶黏剂、橡胶胶粉、聚酯纤维和碳化硅投入搅拌缸中,于1500‑2000rpm转速下搅拌15‑30s;S3,将沥青加热至155‑200℃,并投入到S2中的搅拌缸中,于1200‑1500rpm转速下搅拌5‑10min,搅拌均匀后排出即得。本申请制备的产品具有有效减轻车辙病害、降低道路养护成本的优点。
Repair type highway pavement asphalt mixture and preparation method thereof
一种修复型高速路面沥青混合料及其制备方法
HUANG LONG (Autor:in)
09.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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