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Table 2 Mix proportion of concrete and cylinder test results.

From: Two-Way Flexural Behavior of Donut-Type Voided Slabs

Cylinder test result

Design strength

W/C (%)

S/a (%)

Weight ratio (kg/m3)

Water

Cement

Sand

Coarse aggregate

Admixture

24.2

24

56.6

47.4

193

341

837

985

1.7