Study on Process Parameters and Control Technology of One-Step Shaping for Thin Layer Paving of Polymer Concrete
In order to make thin layer paving one-step shaping during polymer concrete pavement construction, the relationship model between vibration parameters, structure parameters and the degree of compaction is established in this paper. Based on the resonance theory, this model is integrated with a mathematical model to study the dynamic properties and the interaction mechanism between vibration mechanism and paving material during compaction. The model represents the structure parameters, vibration parameters, driving speed, degree of compaction and the interaction between them. Combining real engineering with adequate quality control technology, the pavement is finished by only one step paving. The results show that, when the vibrating frequency is greater than the optimal vibration frequency and driving speed the driving speed is less than the speed threshold as well as between 2.5~3m/min, the initial compaction degree of the paving is more than 96%. Thereby improving construction efficiency and guaranteeing the construction quality. Thus, the optimal range about vibrating frequency and speed can serve as a valuable reference for one-step shaping of thin layer paving and the dynamic model can also be used to study the compaction process of pavements during the construction.