Size Effect on Recycled Concrete Strength and Its Prediction Model Using Standard Neutrosophic Number

Table 5

Mean values and standard deviations of compressive strengths.

Side length of cube specimen (mm)	Compressive strength () (MPa)				Standard deviation ()	Coefficient of variation
	Block 1	Block 2	Block 3	Mean value
70	32.250	52.189	55.415	46.618	10.244	0.220
100	34.618	32.401	33.509	33.510	0.905	0.027
150	36.580	28.586	30.449	31.871	3.415	0.107
200	36.443	24.047	27.491	29.327	5.224	0.178