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StructuralBig Bad Curves?, Pumping Fiber-Reinforced Wet-Mix Shotcrete

Denis Beaupre and Frederic Chapdelaine

Making good pumpable concrete or wet­ mix shotcrete is not always easy, especially when fibers are present Adding fibers to ordinary wet-mix shotcrete sometimes re­ results in nonpalpable or difficult-to-pump concrete. Simply adding superplasticizer 10 fiber-reinforced shotcrete does not always result in a workable mixture.