滇东北地区C50机制砂混凝土耐久性试验研究

Study on Durability Test of C50 Machine-made Sand Concrete in Northeast Area of Yunnan

依托滇东北某高速公路项目,试验研究了在不同石粉含量、粉煤灰掺量下,C50机制砂混凝土的抗渗性和抗冻性,得到了石粉、粉煤灰对机制砂混凝土耐久性的影响规律,可为高强度机制砂混凝土在工程中的应用提供依据。

Relying on an expressway project in the northeast area of Yunnan, the article studies the seepage resistance and freezing resistance of C50 machine-made sand concrete with the different limestone contentsand fly ash contents, and achieves the influence rules of limestone and fly ash on the durability of machine-made sand concrete, which can be referenced for the application of the high-strength machine-made sand concrete in the projects.