Analysis of the Effect of Substitution Rate on the Mechanical Properties of Recycled Concrete Hollow Block

Table 10

Summary of the test results of flexural strength of recycled blocks with different substitution rates of MU10.

Block	RCB-10-1	RCB-10-2	RCB-10-3	RCB-10-4	RCB-10-5
Average flexural strength (MPa)	2.69	1.87	1.84	1.38	1.21
Standard deviation (MPa)	0.6300	0.1251	0.1385	0.2295	0.0587
Coefficient of variation	0.2342	0.0669	0.0753	0.1663	0.0485
Minimum flexural strength of single block (MPa)	1.73	1.67	1.55	1.1	1.14