For a short age of 28 days, when the GGBS content is low (10% and 20%), the compressive strength shows a slight increase, and with a further increase in GGBS content, the compressive strength shows a decreasing trend.
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Mechanical Properties and Chloride Penetration Resistance of Concrete Combined with Ground Granulate Blast Furnace Slag and Macro Synthetic Fiber.
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The sentences
The results also indicated that the splitting tensile strength shows an increasing trend over time.