Application of Fly Ash and Slag Generated by Incineration of Municipal Solid Waste in Concrete

Table 2

Fly ash, slag, and concrete leaching toxicity at different pH values (mg·L⁻¹).

	pH	Cu	Zn	Cr	Cd	Pb
Fly ash	3	2.101	5.99	3.781	4.963	5.105
	5	1.473	5.02	2.201	2.393	1.323
	7	0.412	0.459	0.576	1.213	0.714
Slag	3	0.316	6.33	1.212	0.305	3.135
	5	0.103	6.16	0.694	0.103	1.516
	7	0.025	0.791	0.037	0.042	0.91
B20C30	3	0.125	3.554	1.013	0.197	1.016
	5	0.034	1.254	0.701	0.089	0.12
	7	0.002	0.01	0.007	0.004	0.04
Standard values		50	50	1.5	0.3	3