Abstract
This research investigates the compressive strength and workability of mortar and concrete, which were mixed with magnetic water and contained granulated blast-furnace slag (GBFS). The test variables included the magnetic strength of water, the content of GBFS in place of cement, and the water-to-binder ratio (W/B). Results show that the compressive strength of mortar samples mixed with magnetic water of 0.8–1.35 T increased 9–19% more than those mixed with tap water. Similarly, the compressive strength of concrete prepared with magnetic water increased 10–23% more than that of the tap water samples. In particular, the best increase in compressive strength of concrete is achieved when the magnetic strength of water is of 0.8 and 1.2 T. It is also found that magnetic water improved the fluidity of mortar, the slump, and the degree of hydration of concrete.
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