Compressive strength and heavy metal leaching of concrete containing medical waste incineration ash

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Tarih

2017

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier Sci Ltd

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

This paper provides the results of the study on solidification/stabilization (S/S) of medical waste incineration bottom ash (MWBA). S/S is a process reducing heavy metals leachability of materials, and so as permitting disposal of them in a sanitary landfill. This process can be also described as a recycling facility because the usability of solidified matrix as a building material according to mechanical characteristics. In this study, S/S process was studied at different ratios of ash/cement mixture (0%, 5%, 10%, 15%, 20%, 25%, 30%, 40% and 50%) and two different curing times (7 days and 28 days). The results of the study showed that S/S method can able to prevent the heavy metals leachability of MWBA. The concrete compressive strength decreased with increasing MWBA ratio. The compressive strength was 38 MPa for 100% cement with 0% MWBA ratio. The compressive strength reduced to 11.3 MPa when 50% cement was mixed with 50% MWBA. The data obtained from experimental study was also evaluated statistically. (C) 2017 Elsevier Ltd. All rights reserved.

Açıklama

Anahtar Kelimeler

Bottom ash, Compressive strength, Incineration, Leaching test, Medical waste management, Solidification/stabilization, Bottom Ash, Solidification/Stabilization, Cement, Fly

Kaynak

Construction and Building Materials

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

138

Sayı

Künye