Mechanical and Durability Properties of Concrete Made with Used Foundry Sand as Fine Aggregate

Table 3

Different concrete mixtures and workability.

Mixture	Water	Cement	Sand	Coarse aggregate	Foundry sand (FS)	Slump values (mm)
	(kg/m^3)	(kg/m^3)	(kg/m^3)	(kg/m^3)	(kg/m^3)	Imm. after mixing	After 30 min	After 60 min
Control mixture (CM)	177	402.37	616.52	1152.25	0	115	96	51
FS 10%	177	402.37	554.86	1152.25	61.652	112	91	37
FS 20%	177	402.37	493.26	1152.25	123.304	101	77	24
FS 30%	177	402.37	431.567	1152.25	184.96	92	64	7
FS 40%	177	402.37	369.91	1152.25	246.61	74	39	0
FS 50%	177	402.37	308.26	1152.25	308.26	63	21	0