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Table 2 Mix design ratios and slump flow spread of the tested mortar.

From: Development of a 3D Printer for Concrete Structures: Laboratory Testing of Cementitious Materials

Mix designCement (g)Water (g)Sand (g)Sand sizeW/CSlump flow spread (mm)
2-1600189300I0.315195
2-21000315400I0.315200
2-3600189200II0.315195
2-42000630800II0.315198