【摘要】 风压对混凝土碳化的影响是客观存在的,它会导致混凝土构件截面耐久性不等.风压作用下,碳酸气在混凝土中的流动为渗透过程,符合达西定律和传质守恒定律,据此在流体力学和传质学的基础上建立了风压加速混凝土碳化的计算模型,并构造算例给出了数值解,为混凝土结构等耐久性设计方法的建立奠定了基础.更多还原

【Abstract】 Wind pressure can accelerate concrete carbonization, which makes the durability of the section of concrete structure different everywhere. The flow of carbonic acid gas in concrete is a process of filter, which follows Darcy鈥檚 Law and conservation law of convection mass. According to the principle of hydromechanics and convection mass, calculating model of concrete carbonization accelerated by wind pressure is founded, and the carbonization depth is calculated in example. The work establishes a foundation for equal durability design of the section of concrete structure.更多还原