Management and Characterization of MSWI Residues

Title: Management and Characterization of MSWI Residues
Author(s): Sorlini
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 422 - 429
Total Pages: 8
Nb references: 17
Language: English

Abstract: The aim of this study was to assess the feasibility of concrete production using slags and
exhausted sand from municipal solid wastes incineration plants. These solid residues were
produced from a fluidized bed incineration plant treating refuse derived fuel (RDF) from
municipal solid wastes.
The two raw wastes (slag and sand) were characterized in order to study their chemical
composition and their leaching behaviour according to the 16 days leaching test (Ministerial
Decree 05/02/08). The results show that both in slag and in sand there are high concentrations
of copper, lead, chromium and zinc; therefore copper, cadmium, chromium, arsenic and
selenium in the leachate are higher than the maximum law concentration.
The two wastes were reused as a "recycled aggregate" for cement mixtures production, in
substitution of natural aggregate (with dosage of 200, 400 and 600 kg/m 3 ). These concrete
mixtures, after curing (7, 28 and 60 days), were characterized with conventional physical-mechanical
compression tests. The mechanical characteristics were very low for concrete with
300 kg/m 3 of 32.5R Portland cement that is classified as not structural concrete according to
UNI EN 206-1/2001; otherwise, the mechanical characteristics were improved in concrete
containing 300 kg/m 3 of 42.5R Portland cement and 400 kg(waste)/m 3 (concrete), that was
classified as ordinary concrete (class C16/20), with mechanical compressive strength higher
than 20 MPa after 28 days of curing.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.047