Experiment on Size Effect and Fractal Characteristics of Waste Brick and Concrete Recycled Aggregate

Table 1

95% guarantee rate representative value of crushing strength of single particle.

Aggregate type	Particle size (mm)	Maximum value (MPa)	Minimum value (MPa)	Average value (MPa)	Standard deviation (%)	Coefficient of variation (%)	95% representative value of single-particle strength
Recycled brick	9.5–16	3.93	1.81	2.916	86	29	1.49
	16–19	2.6	1.61	2.168	39	18	1.51
	19–26.5	2.48	1.62	1.772	37	21	1.15
	26.5–31.5	2.21	0.88	1.371	54	40	0.46
Recycled aggregate particles of concrete	9.5–16	4.88	2.94	3.998	79	19	2.69
	16–19	4.13	2.51	3.319	66	20	2.23
	19–26.5	3.98	1.97	2.832	82	29	1.47
	26.5–31.5	3.51	1.51	2.507	81	32	1.16