Design of Structural Concrete with Bone China Fine Aggregate Using Statistical Approach

Table 4

Indicators (traditional and robust) of compressive strength (MPA) for each mix and age.

Mix with age	Arithmetic mean	Median	Trimmed mean	Standard deviation
B0-7d	14.20	14.20	14.20	1.40
B20-7d	14.97	14.90	14.96	1.80
B40-7d	15.49	15.37	15.49	1.65
B60-7d	15.73	15.89	15.73	0.86
B80-7d	14.53	14.59	14.53	0.70
B100-7d	14.34	14.02	14.34	0.94
B0-28d	22.00	22.70	22.00	1.95
B20-28d	23.12	24.46	23.12	2.36
B40-28d	23.70	24.00	23.70	1.08
B60-28d	24.20	23.70	24.20	1.04
B80-28d	22.32	21.56	22.32	1.63
B100-28d	21.90	21.50	21.90	0.78
B100-28d	21.90	21.50	21.90	0.78