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Table 2 Mix proportion

From: Pipe flow of pumping wet shotcrete based on lubrication layer

Materials

Design strength (C25–C35)

Name of the series

Group 1

Group 2

Group 3

Cement (kg/m3)

401

430

410

Fly ash class F (kg/m3)

43

48

44

Water (kg/m3)

204

192

186

Sand (kg/m3)

876

889

887

Coase aggregate (kg/m3)

704

680

711

Lignosulfonate-based WRA (%)

0.3

0.25

0.25

Slump (mm)

110 ± 20

110 ± 20

100 ± 20