jismart2024085: Effects of Ground Blast Furnace Slag and Silica Fume on the Workability and Rheological Properties of Seawater-Mixed Cement Paste

Abstract

For Utilizing seawater to produce concrete for engineering construction is one of the potential and effective solutions to alleviate the shortage of freshwater resources in offshore construction. However, the influence of different mineral admixtures on the rheological properties of seawater cement paste remains unclear. This paper investigates the effects of fly ash and silica fume (SF) on the rheological characteristics of seawater cement paste. Initially, the study explores the impact of seawater on the rheological performance of cementitious paste. Subsequently, the influence of different mineral admixtures on the rheological behavior of seawater cement paste is examined by varying the dosages of ground granulated blast furnace slag (GBFS) and SF. The study also considers the time-dependent rheological properties of the paste. The findings provide technical support for the further application of seawater concrete.