沥青改性：在沥青中加入3%—15%的SBS可改善沥青的低温屈挠性和高温抗流动性能。
Bitumen modification: The low temperature flexing and anti-flowing property at high temperature of bitumen can be improved by adding 3% to 15% (wt %) SBS.
改善沥青的低温屈挠性可减轻沥青低温下的发硬，发脆，龟裂，提高公路，卷材的使用寿命。
Hardening, embrittling and cracking at low temperature of bitumen can be reduced due to improved flexing so as to extend the service life of road and rolling material.
改善沥青的低温屈挠性可减轻沥青低温下的发硬，发脆，龟裂，提高公路，卷材的使用寿命。
Hardening, embrittling and cracking at low temperature of bitumen can be reduced due to improved flexing so as to extend the service life of road and rolling material.
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