2152 Figure 2 presents an example of an early strength gain curve for the ICS mix versus the baseline mix, highlighting the much steeper initial strength ramp-up of the ICS approach. Figure 2 – (ex., panels 1 & 2) Early compressive strength gain of the ICS shotcrete mix compared to the baseline traditional mix (strength measured via penetrometer and core tests). The ICS mix achieved approximately 1 MPa in 1 hour (dotted line indicates re-entry threshold), we show results from several panels development with ICS shotcrete mix. Panel 1
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