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International Journal of Concrete Structures and Materials

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).
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