高铁底座板专用修补材料抗冻性能研究

Study on Anti-freeze Property of Special Repair Materials for High-speed Rail Base Plate

高速铁路底座板易受现场施工条件的影响,加之该结构受冻融影响较大,容易发生粉化脱落问题。底座板专用混凝土修补材料,与底座板基座黏结性能良好,但产品的抗冻性能较佳。论述了适用哈大高铁气候特点的底座板专用混凝土修补材料试验技术指标、实验室试验方法及抗冻性能试验方法。

Due to the limit of the construction site conditions,and greatly affected by the freeze-thaw, the high-speed rail base plate is easy to effloresce and drop. The concrete patching material for the base plate is bonded to the base plate but the product has good anti-freeze property. This paper discusses the technical index of material test, the method of laboratory test and frost resistance test of the concrete patching material for the base plate applicable for Ha-Da high-speed rail climate characteristics.