流态粉煤灰施工技术在台背回填中的应用

Application of Fluid Fly Ash Construction Technique in Subgrade Backfilling

介绍了流态粉煤灰在台背回填施工中优越的应用特性,并结合石家庄市环城公路工程台背回填及流态粉煤灰施工的应用,详细阐述了流态粉煤灰施工配合比的设计过程及施工过程的控制措施。在分析施工成果的基础上,对其强度指标进行了调整,并对其使用范围的推广提出了相关建议.对提高台背回填质量及对新材料的推广具有一定的指导意义。

The advanced features of fluid fly ash indicated in subgrade backfilling are introduced. The design pro-cess of mix proportion and control measure for construction process are expounded in terms of the backfilling construction with fly ash for city ring road of Shijiazhuang.The strength index is tuned based on the analysis of construction result, and advices for widening its range are given, which is helpful for improving the quality of backfilling and popularizing new materials.