Results The control group showed normalfracture healing with histological evidence of bony fracture bridging by 28 days and mature bony remodelling at 63 days.
Early tension fracture, middle shear strike slipping or normal overturning occurred during the movement.
断裂的活动具有早期张裂、中晚期剪切走滑与正反转活动的特点。
3
Compared with normal concrete, polypropylene fiber reinforced concrete has advantages in ductility, durability, fracture energy, impact resistance, abrasion, and so on.