Flexural Behavior of Corroded Reinforced Recycled Aggregate Concrete Beams

Table 3

Mix proportions of concrete.

Specimen	Water/binder ratio	Unit weight (kg/m^3)							(MPa)	(N/mm^2)
		Cement	Coal fly ash	Slag	Sand	Gravel	RCA	Water
RCB-0	0.52	227	75	75	910	910	0	195	36.1	3.18 × 10^4
RCB-33	0.52	227	75	75	910	610	300	195	36.4	3.05 × 10^4
RCB-66	0.52	227	75	75	910	310	600	195	37.4	3.05 × 10^4
RCB-100	0.52	227	75	75	910	0	910	195	36.6	2.38 × 10^4
HRCB-0	0.39	435	52	52	758	928	0	210	63.9	3.72 × 10^4
HRCB-33	0.39	435	52	52	758	623	305	210	57.1	3.30 × 10^4
HRCB-66	0.39	435	52	52	758	315	613	210	57.9	3.02 × 10^4
HRCB-100	0.39	435	52	52	758	0	928	210	56.6	2.96 × 10^4

denotes the compressive strength of concrete cubes; denotes the elasticity modulus of concrete.