基于振动成型的冷再生粒料性能研究

通过和相同条件静压成型试件的对比,研究了振动成型水泥冷再生粒料的路用性能.发现相同水泥用量和养生条件下,振动成型试件的抗压强度、劈裂强度、抗压回弹模量等力学性能和冻稳定性、抗冲刷路用性能要明显优于静压法成型的试件.实验数据还表明相比于静压成型法,振动成型法采用较小的水泥用量就可以达到相应的性能要求,不但能节省生产中的水泥用量,也有利于再生基层抗裂性能的提高.

Study of properties of cold recycling mixture based on vibration molding

Properties of the vibration molding cement cold recycling mixture are tested using a series of laboratory experiment and are compared with the same properties of statically pressed specimens.It is found that with the same cement content and under the same curing condition,vibration molding specimens have such better mechanical properties as compression strength,splitting tensile strength,resilience modulus as well as better performance like frozen stability and erosion resistance.The study also shows that the same property requirement can be achieved at lower cement content if the vibration molding is employed.The vibration molding method can not only save cement,but also enhance the anti-cracking property of the recycled base.The use of vibration molding should be promoted.