粉煤灰已是现代混凝土体系中一种不可或缺的矿物掺合料之一。其在混凝土中的掺量也在逐渐提高。但当人们提到大掺量粉煤灰混凝土,特别是较低强度等级的大掺量粉煤灰混凝土时,总是对其强度、结构耐久性等提出怀疑。本文就通过试配探讨50%粉煤灰大掺量的混凝土在强度、碳化深度、电通量等方面是否能够达到使用的基本要求,验证该种混凝土用于工程结构的可行性。 Fly ash is one of the indispensable mineral admixtures in modern concrete systems. Its content in concrete is also gradually increased. But when it comes to high-volume fly ash concrete, especially low-intensity high-volume fly ash concrete, it is always skeptical about its strength, structural durability and so on. In this paper, through the trial to explore 50% fly ash high content of concrete in the strength, carbonation depth, electric flux and other aspects of the basic requirements can be used to verify the feasibility of the concrete used in engineering structures.