PMID: 11606245Oct 19, 2001Paper

Properties of Portland cement--stabilised MSWI fly ashes

Journal of Hazardous Materials
A PolettiniF Testa

Abstract

In the present paper, the properties of Portland cement mixtures containing fly ashes (FA) collected at four different Italian municipal solid waste incineration (MSWI) plants were investigated. In particular, physical/mechanical characteristics (setting time, unconfined compressive strength (UCS) and shrinkage/expansion), as well as the acid neutralisation behaviour of the solidified products were considered. The FA composition, revealing enrichment in heavy metals, chlorides and sulphates, significantly altered the hydration behaviour of Portland cement. Consequently, for some of the investigated FA the maximum allowable content for the mixtures to achieve appreciable mechanical strength was 20 wt.%. Even at low FA dosages setting of cement was strongly delayed. In order to improve the properties of FA/cement mixtures, the use of additives was tested.Moreover, the acid neutralisation capacity (ANC) of the solidified products was evaluated in order to assess the ability of the matrix to resist acidification, and also to provide information on hydration progression, as well as on heavy metal release under different pH conditions. Comparison of the results from the present work with previous studies carried out on spiked mixture...Continue Reading

Citations

Mar 8, 2003·Waste Management·T SabbasUNKNOWN pHOENIX Working Group on Management of MSWI Residues
Oct 21, 2010·Journal of Environmental Monitoring : JEM·E BontempiL E Depero
Dec 3, 2013·Journal of Hazardous Materials·Margarida J QuinaRosa M Quinta-Ferreira
Apr 12, 2014·Environmental Science and Pollution Research International·Srinivasa Reddy MallampatiCristian Simion
Feb 11, 2011·Waste Management·Aurore De BoomChristian Lucion
Nov 16, 2010·Journal of Hazardous Materials·C LamprisC R Cheeseman
Apr 3, 2010·Journal of Hazardous Materials·Margarida J QuinaRosa M Quinta-Ferreira
Nov 3, 2009·Waste Management·Isabella LancellottiCristina Leonelli
Nov 27, 2007·Waste Management·Margarida J QuinaRosa M Quinta-Ferreira
Aug 1, 2015·Journal of the Air & Waste Management Association·Srinivasa Reddy MallampatiByoung Ho Lee
Oct 4, 2006·Waste Management·Xiaomin LiStef Simon
Aug 22, 2006·Waste Management·Nabajyoti SaikiaToshinori Kojima
Jul 12, 2016·Journal of Hazardous Materials·Nan YeXu Wu
Aug 27, 2016·Environmental Science and Pollution Research International·Srinivasa Reddy MallampatiCristian Simion
May 9, 2009·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Wenshi LiuDajie Zhang
Jun 26, 2018·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Yahaya YakubuYassin Mbululo
Jan 6, 2009·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Wilson M GitariViswanath R K Vadapalli
May 2, 2019·Environmental Science and Pollution Research International·Zhenghui PhuaWun Jern Ng
Jan 11, 2019·International Journal of Environmental Research and Public Health·De-Gang LiuGuang-Hua Jiang
May 9, 2012·Journal of Environmental Quality·Sara EgemoseMogens R Flindt
Jul 20, 2018·Environmental Science and Pollution Research International·Jin-Zhong YangQifei Huang
Nov 10, 2021·Environmental Science and Pollution Research International·Hiroki KitamuraMasato Yamada

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