Assessing the Effect of GGBFS Content on Mechanical and Durability Properties of High-Strength Mortars

As a large amount of steel is produced for the industrialization and modernization Vietnam, correspondingly quantity slag also released annually. Besides, demand mortar increasing due to urbanization, especially high-strength durability used important constructions structures in aggressive environmental areas. This study aims carry out further research into mortars incorporating ground granulated blast furnace (GGBFS). The control mixture was designed with water-to-binder ratio 0.2, silica fume equal 25% total binder by mass. Four other mixtures were using GGBFS substitute 15, 30, 45, 60% cement engineering properties fresh hardened comprehensively investigated, properties. microstructure these examined scanning electron microscopy. Test results show that replacing 15 or 30% yields an improvement mortar's strength All this excellent qualities high strength, low water absorption, resistance chloride attack. Moreover, presence reduces shrinkage caused drying process. Doi: 10.28991/CEJ-2022-08-05-07 Full Text: PDF