Within the range of S/B from 0.8 to 1.4, the enhancement effect of the S/B ratio on the early strength (7-day) showed a decreasing trend, while the improvement in the later strength (28-day) was most significant when S/B was between 1.0 and 1.2.
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Development of a High-Performance Composite Mortar for Ultra-High-Strength Preplaced Aggregate Concrete-Filled Steel Tubes (PACFSTs).
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