ABSTRACT
The long-term accumulation of coal gangue not only occupies a large amount of land but also causes great pollution to the surrounding environment. Therefore, its resource utilization has become a pressing matter. To address this issue, early strength agents have been widely used in the maintenance engineering of concrete pavement, which has positive implications for rapid construction and fast traffic. This paper proposes a test design of coal gangue concrete and then compares it with the coal gangue concrete without adding an early strength agent under the same conditions to study the strength of coal gangue concrete and obtain the influences of early strength agent, the coarse aggregate substitution rate of coal gangue, and water-cement ratio on the strength of coal gangue concrete. The results of this study have positive implications for guiding engineering construction.
