Durability and Shrinkage Characteristics of Self-Compacting Concretes Containing Recycled Coarse and/or Fine Aggregates

Table 3

Concrete mix proportions (in kg/m³), compressive and splitting tensile strengths of SCCs.

		Volume fraction (%)				w/b	Binder				Coarse aggregate		Fine aggregate		HRWRA	Compressive; strength; (MPa)	Splitting; tensile strength; (MPa)
Mix series	Mix code	Coarse aggregate		Fine aggregate
		NCA	RCA	NFA	RFA		Total	Cement	GGBFS	SF	NCA	RCA	NFA	RFA
Series I	0.3RCA0RFA0SF0	100	0	100	0	0.3	570	427.5	142.5	0	859.8	0.0	765.0	0.0	7.1	77.96	4.25
	0.3RCA0RFA0SF10	100	0	100	0	0.3	570	370.5	142.5	57	851.4	0.0	757.5	0.0	5.9	81.40	4.46
	0.43RCA0RFA0SF0	100	0	100	0	0.43	480	360.0	120.0	0	869.3	0.0	773.4	0.0	5.4	66.63	3.50
	0.43RCA0RFA0SF10	100	0	100	0	0.43	480	312.0	120.0	48	862.3	0.0	767.2	0.0	4.4	72.47	3.75
Series II	0.3RCA100RFA0SF0	0	100	100	0	0.3	570	427.5	142.5	0	0.0	749.2	765.0	0.0	4	68.67	3.50
	0.3RCA100RFA0SF10	0	100	100	0	0.3	570	370.5	142.5	57	0.0	741.9	757.5	0.0	4	70.39	4.13
	0.43RCA100RFA0SF0	0	100	100	0	0.43	480	360.0	120.0	0	0.0	757.5	773.4	0.0	6.1	55.38	2.89
	0.43RCA100RFA0SF10	0	100	100	0	0.43	480	312.0	120.0	48	0.0	751.3	767.2	0.0	5.3	63.89	3.24
Series III	0.3RCA0RFA100SF0	100	0	0	100	0.3	570	427.5	142.5	0	859.8	0.0	0.0	667.0	4	61.97	3.15
	0.3RCA0RFA100SF10	100	0	0	100	0.3	570	370.5	142.5	57	851.4	0.0	0.0	660.5	3.3	64.61	3.59
	0.43RCA0RFA100SF0	100	0	0	100	0.43	480	360.0	120.0	0	869.3	0.0	0.0	674.4	3.1	48.69	2.53
	0.43RCA0RFA100SF10	100	0	0	100	0.43	480	312.0	120.0	48	862.3	0.0	0.0	668.9	5.9	61.04	2.81
Series IV	0.3RCA100RFA100SF0	0	100	0	100	0.3	570	427.5	142.5	0	0.0	749.2	0.0	667.0	4.7	55.76	2.72
	0.3RCA100RFA100SF10	0	100	0	100	0.3	570	370.5	142.5	57	0.0	741.9	0.0	660.5	4.5	57.41	3.16
	0.43RCA100RFA100SF0	0	100	0	100	0.43	480	360.0	120.0	0	0.0	757.5	0.0	674.4	4.1	46.04	2.20
	0.43RCA100RFA100SF10	0	100	0	100	0.43	480	312.0	120.0	48	0.0	751.3	0.0	668.9	3.9	52.92	2.59

GGBFS: ground granulated blast furnace slag.
SF: silica fume.
NCA: natural coarse aggregate.
NFA: natural fine aggregate.
RCA: recycled coarse aggregate.
RFA: recycled fine aggregate.