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。

youdao

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。

youdao