粉煤灰混凝土抗压强度非线性计算模型

Pulverized-coal Ash Concrete Nonlinear Compressive Strength Computation Model

随着粉煤灰质量的改善以及混凝土中粉煤灰掺量的提高,现有的粉煤灰混凝土抗压强度公式存在一定的局限性。参考已有的研究成果,研究影响粉煤灰混凝土抗压强度的主要因素,提出基于水泥强度、水胶比、广义砂率的非线性计算公式,并进行了试验验证,表明该公式可用于工程实际。此研究成果的提出,为粉煤灰混凝土的基本力学性能研究奠定了一定的理论基础。

With pulverized-coal ash quality improvement and its content increase in concrete, existing compressive strength formula for pulverized-coal ash concrete shows certain limitations. Based on existing research and study of major factors affecting compressive strength, nonlinear formula based on concrete strength, water-to-glue ratio, and generalized sand content is presented. Validation tests are also performed to indicate its application for engineering practices. This study provides certain theoretical foundation for pulverized-coal ash concrete fundamental mechanic performance research.