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Table 4 The mixture proportions of the CRFA-LWC.

From: Utilization of Completely Recycled Fine Aggregate for Preparation of Lightweight Concrete Partition Panels

No.

C/C

Target concrete density (kg/m3)

SF (%)

The content of the concrete materials (kg/m3)

Cement

Water

Water reducer

Air-entraining agent

CRFA

AR18-1

1.8

1550

65

503

161

12.1

3.82

906

AR18-2

1.8

1650

65

536

171

12.9

2.95

964

AR18-3

1.8

1750

65

568

181

13.6

2.04

1023

AR22-1

2.2

1550

85

445

157

11.6

3.56

980

AR22-2

2.2

1650

85

474

167

12.3

2.75

1043

AR22-3

2.2

1750

85

503

177

13.1

2.11

1106

AR24-1

2.4

1550

100

421

159

11.8

3.58

1011

AR24-2

2.4

1650

100

448

169

12.5

2.33

1076

  1. C/C CRFA-to-cement ratio, SF saturation factor of the CRFA, CRFA completely recycled fine aggregate.