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Utilization of municipal solid waste...

Rachakornkij, Manaskorn.

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Utilization of municipal solid waste incinerator fly ash in cement mortars.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Utilization of municipal solid waste incinerator fly ash in cement mortars./
Author:	Rachakornkij, Manaskorn.
Description:	255 p.
Notes:	Adviser: Methi Wecharatana.
Contained By:	Dissertation Abstracts International61-01B.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9959671
ISBN:	0599631724

Utilization of municipal solid waste incinerator fly ash in cement mortars.
Rachakornkij, Manaskorn.

Utilization of municipal solid waste incinerator fly ash in cement mortars. - 255 p.

Adviser: Methi Wecharatana.

Thesis (Ph.D.)--New Jersey Institute of Technology, 2000.

Disposal of municipal solid waste has become a major problem in many countries around the world. With the benefits of substantial weight and volume reduction and potential energy recovery, incineration has become a promising municipal solid waste (MSW) management option. Despite the fact that incineration reduces volume and mass of the wastes by as much as 80%, there are still residues to be properly managed. This research is aimed at evaluating the potential of different types of MSWI fly ash from an incineration facility to be used in cement mortars by using existing standard test methods for cement and coal fly ash.

ISBN: 0599631724Subjects--Topical Terms:

783781
Engineering, Civil.

Utilization of municipal solid waste incinerator fly ash in cement mortars.
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020 $a 0599631724
035 $a (UnM)AAI9959671
035 $a AAI9959671
040 $a UnM $c UnM
100 1 $a Rachakornkij, Manaskorn. $3 1256780
245 1 0 $a Utilization of municipal solid waste incinerator fly ash in cement mortars.
300 $a 255 p.
500 $a Adviser: Methi Wecharatana.
500 $a Source: Dissertation Abstracts International, Volume: 61-01, Section: B, page: 0420.
502 $a Thesis (Ph.D.)--New Jersey Institute of Technology, 2000.
520 $a Disposal of municipal solid waste has become a major problem in many countries around the world. With the benefits of substantial weight and volume reduction and potential energy recovery, incineration has become a promising municipal solid waste (MSW) management option. Despite the fact that incineration reduces volume and mass of the wastes by as much as 80%, there are still residues to be properly managed. This research is aimed at evaluating the potential of different types of MSWI fly ash from an incineration facility to be used in cement mortars by using existing standard test methods for cement and coal fly ash.
520 $a Two types of MSWI fly ash samples: chemically treated and untreated fly ashes, were used. The treated fly ash was used to replace fine aggregates while the finer untreated fly ash was used to directly replace cement in mortars. Fractionation by air classification was introduced to separate the raw untreated fly ash into fine and coarse fractions to improve usability. MSWI fly ash, in its raw and fractionated forms, has been characterized with a view to utilizing the material to replace part of portland cement in mortars. Characterization involved chemical and physical analyses, observation under Environmental Scanning Electron Microscope (ESEM), and X-ray fluorescence (XRF) and X-ray Diffraction (XRD) analyses.
520 $a Results showed that both raw and fractionated fly ashes significantly enhanced compressive strengths of mortar specimens. Attempts were also made to specify the sources of the additional strength by microstructural examination as well as XRD analyses of the hydration products of MSWI fly ash-cement mortar pastes. A new chemical phase was identified exclusively in the MSWI fly ash-cement paste. High absorption capacity of the fly ashes and the formation of C 3A.CaCl2.10H2O were responsible for the superior strength properties. Toxicity Characteristic Leaching Procedure (TCLP) tests were performed on these specimens to assess the likelihood of heavy metals being released into the environment. The benefits of using MSWI fly ash in mortar are twofold; namely, the cost savings stemming from reduction in the cement used, and the ecological advantage of ensuring a final destination for the ash.
590 $a School code: 0152.
650 4 $a Engineering, Civil. $3 783781
650 4 $a Engineering, Environmental. $3 783782
650 4 $a Engineering, Sanitary and Municipal. $3 1018731
650 4 $a Environmental Sciences. $3 676987
690 $a 0543
690 $a 0554
690 $a 0768
690 $a 0775
710 2 0 $a New Jersey Institute of Technology. $3 1028843
773 0 $t Dissertation Abstracts International $g 61-01B.
790 $a 0152
790 1 0 $a Wecharatana, Methi, $e advisor
791 $a Ph.D.
792 $a 2000
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9959671