Mechanical and Thermal Properties of RCB Masonry Containing Three Rows of Holes

Table 3

Mixture proportions of RCB (kg/m³).

Group	Replacement ratio of RFA (%)	Sand ratio (%)	Strength grading of cement	Water	Cement	RCA	RFA	NFA
R1	100	45	PC32.5	150	375	866	709	0
R2	40	50	PC32.5	150	375	788	315	472
R3	0	55	PC32.5	150	375	709	0	866
R4	100	45	PC42.5	150	375	866	709	0
R5	40	50	PC42.5	150	375	788	315	472
R6	0	55	PC42.5	150	375	709	0	866

RFA: recycled fine aggregates, RCA: recycled coarse aggregates, NFA: natural fine aggregates, and sand ratio: (RFA + NFA)/(RCA + RFA + NFA).