为了研究不同碳纤维掺量对于粉煤灰陶粒混凝土立方体抗压龄期强度的影响,设计了碳纤维掺量分别为0%、0.5%、0.8%、1.0%四组试块,通过对不同龄期(7 d、14 d、21d、28 d)试件的强度回归分析得出碳纤维掺量对于粉煤灰陶粒混凝土抗压强度的影响以及各龄期相对抗压强度和龄期的关系。在工程实践中,可以通过7 d早期强度较为准确地预测28d抗压强度。 In order to study the effect of different carbon fiber content on the compressive strength of fly-ash ceramsite concrete cubes, four test blocks with carbon fiber content of 0%, 0.5%, 0.8% and 1.0% were designed. (7 d, 14 d, 21 d, 28 d), the influence of carbon fiber content on the compressive strength of fly-ash ceramsite concrete and the relationship between relative compressive strength and age were obtained. In engineering practice, the 28d compressive strength can be predicted more accurately by the early strength of 7 days.