330
H. Asaue et al.
Table 27.1
Mixture proportion of concrete slab
Max. gravel size (mm) Slump (cm) W/C (%) Volume ratio of sand s/a
(%)
Air (%) Unite weight per 1 m 3
concrete (kg/m 3
)
Water: W
Cement: C Sand: S Gravel: G Admixture
20
12
64.3
46.6
4.5
178
277
839
1055
2.27