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Table 3 Summary of mortar strength development.

From: Tensile Performance, Lap-Splice Length and Behavior of Concretes Confined by Prefabricated C-FRCM System

Mortar Compressive strength (MPa) and COV (%) Flex. strength (MPa) at 28 d Remarks
7 d COV 28 d COV 56 d COV fr COV
HM-RFA-MC-1 55.8 1.86 71.3 3.36 75.6 6.80 5.50 14.6 Tensile test
HM-RFA-MC-2 67.0 2.33 78.6 3.70 85.3 4.08 Splice test
HM-RFA-MC-3 31.1 4.60 51.2 6.41 Column test
HM-RFA-HC-3 44.4 1.20 52.4 3.85 FRCM tube
HM-NFA-MC 55.3 3.02 Filler mortar
  1. Average of three tests; two different recycled fine aggregates were used (RFA1: BSGSSD = 2.52, water absorption = 2.34%—used for HM-RFA-MC-1, -2; RFA2: BSGSSD = 2.50, water absorption = 2.63%—used for HM-RFA-MC-3, -HC).