The modifying effects of polyacryamide on flexural fatigue property and flexural toughness of concrete bridge deck overlay is studied by strength test, impact test, flexural fatigue test and so on.

• 通过强度试验,冲击试验和弯曲疲劳试验,研究了聚丙烯酰胺对混凝土桥面铺装层弯曲疲劳特性与韧性的改性效果,建立了聚丙烯酰胺改性混凝土的弯曲疲劳寿命方程。