Novel cementitious materials produced from incinerator bottom ash

X. C. Qiao; M. Tyrer; C. S. Poon; C. R. Cheeseman

doi:10.1016/j.resconrec.2007.06.003

Novel cementitious materials produced from incinerator bottom ash

X. C. Qiao, M. Tyrer, C. S. Poon, C. R. Cheeseman

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

The fine fraction of incinerator bottom ash (IBA) obtained from an energy from waste plant has been milled and thermally treated at 800 °C to investigate the potential for exploiting IBA as a cementitious material. In addition to decomposition of CaCO₃ to CaO, thermal treatment increases the content of gehlenite (Ca₂Al₂SiO₇), wollastonite (CaSiO₃) and mayenite (Ca₁₂Al₁₄O₃₃). Monolithic samples have been formed by adding 10 wt.% Ca(OH)₂ at water to solid (w/s) ratios of 0.50 and 0.20. The high w/s samples were formed by casting and the low w/s samples were formed by pressing. The setting time and physical properties of cured samples were determined including compressive strength and the extent of reaction of Ca(OH)₂. Hydration products included a mixed sulphate-carbonate AFm-type phase (Ca₄Al₂O₆(CO₃)_0.67(SO₃)_0.33·11H₂O) and a low Ca/Si ratio C-S-H gel. The release of hydrogen gas from IBA due to residual Al metal did not cause macro-porosity to form in the pressed samples, and these novel materials had significant compressive strengths of 12.7 and 14.7 MPa at 7 and 28 days, respectively.

Original language	English
Pages (from-to)	496-510
Number of pages	15
Journal	Resources, Conservation and Recycling
Volume	52
Issue number	3
Early online date	1 Aug 2007
DOIs	https://doi.org/10.1016/j.resconrec.2007.06.003
Publication status	Published - Jan 2008
Externally published	Yes

Keywords

Incineration
Incinerator bottom ash
Pozzolanic
Reuse
Waste

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Management, Monitoring, Policy and Law
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.resconrec.2007.06.003

Cite this

@article{63bc262a6d21405996d7a4d8ecae2300,

title = "Novel cementitious materials produced from incinerator bottom ash",

abstract = "The fine fraction of incinerator bottom ash (IBA) obtained from an energy from waste plant has been milled and thermally treated at 800 °C to investigate the potential for exploiting IBA as a cementitious material. In addition to decomposition of CaCO3 to CaO, thermal treatment increases the content of gehlenite (Ca2Al2SiO7), wollastonite (CaSiO3) and mayenite (Ca12Al14O33). Monolithic samples have been formed by adding 10 wt.% Ca(OH)2 at water to solid (w/s) ratios of 0.50 and 0.20. The high w/s samples were formed by casting and the low w/s samples were formed by pressing. The setting time and physical properties of cured samples were determined including compressive strength and the extent of reaction of Ca(OH)2. Hydration products included a mixed sulphate-carbonate AFm-type phase (Ca4Al2O6(CO3)0.67(SO3)0.33·11H2O) and a low Ca/Si ratio C-S-H gel. The release of hydrogen gas from IBA due to residual Al metal did not cause macro-porosity to form in the pressed samples, and these novel materials had significant compressive strengths of 12.7 and 14.7 MPa at 7 and 28 days, respectively.",

keywords = "Incineration, Incinerator bottom ash, Pozzolanic, Reuse, Waste",

author = "Qiao, {X. C.} and M. Tyrer and Poon, {C. S.} and Cheeseman, {C. R.}",

year = "2008",

month = jan,

doi = "10.1016/j.resconrec.2007.06.003",

language = "English",

volume = "52",

pages = "496--510",

journal = "Resources, Conservation and Recycling",

issn = "0921-3449",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Novel cementitious materials produced from incinerator bottom ash

AU - Qiao, X. C.

AU - Tyrer, M.

AU - Poon, C. S.

AU - Cheeseman, C. R.

PY - 2008/1

Y1 - 2008/1

N2 - The fine fraction of incinerator bottom ash (IBA) obtained from an energy from waste plant has been milled and thermally treated at 800 °C to investigate the potential for exploiting IBA as a cementitious material. In addition to decomposition of CaCO3 to CaO, thermal treatment increases the content of gehlenite (Ca2Al2SiO7), wollastonite (CaSiO3) and mayenite (Ca12Al14O33). Monolithic samples have been formed by adding 10 wt.% Ca(OH)2 at water to solid (w/s) ratios of 0.50 and 0.20. The high w/s samples were formed by casting and the low w/s samples were formed by pressing. The setting time and physical properties of cured samples were determined including compressive strength and the extent of reaction of Ca(OH)2. Hydration products included a mixed sulphate-carbonate AFm-type phase (Ca4Al2O6(CO3)0.67(SO3)0.33·11H2O) and a low Ca/Si ratio C-S-H gel. The release of hydrogen gas from IBA due to residual Al metal did not cause macro-porosity to form in the pressed samples, and these novel materials had significant compressive strengths of 12.7 and 14.7 MPa at 7 and 28 days, respectively.

AB - The fine fraction of incinerator bottom ash (IBA) obtained from an energy from waste plant has been milled and thermally treated at 800 °C to investigate the potential for exploiting IBA as a cementitious material. In addition to decomposition of CaCO3 to CaO, thermal treatment increases the content of gehlenite (Ca2Al2SiO7), wollastonite (CaSiO3) and mayenite (Ca12Al14O33). Monolithic samples have been formed by adding 10 wt.% Ca(OH)2 at water to solid (w/s) ratios of 0.50 and 0.20. The high w/s samples were formed by casting and the low w/s samples were formed by pressing. The setting time and physical properties of cured samples were determined including compressive strength and the extent of reaction of Ca(OH)2. Hydration products included a mixed sulphate-carbonate AFm-type phase (Ca4Al2O6(CO3)0.67(SO3)0.33·11H2O) and a low Ca/Si ratio C-S-H gel. The release of hydrogen gas from IBA due to residual Al metal did not cause macro-porosity to form in the pressed samples, and these novel materials had significant compressive strengths of 12.7 and 14.7 MPa at 7 and 28 days, respectively.

KW - Incineration

KW - Incinerator bottom ash

KW - Pozzolanic

KW - Reuse

KW - Waste

UR - http://www.scopus.com/inward/record.url?scp=36749101478&partnerID=8YFLogxK

U2 - 10.1016/j.resconrec.2007.06.003

DO - 10.1016/j.resconrec.2007.06.003

M3 - Article

AN - SCOPUS:36749101478

SN - 0921-3449

VL - 52

SP - 496

EP - 510

JO - Resources, Conservation and Recycling

JF - Resources, Conservation and Recycling

IS - 3

ER -

Novel cementitious materials produced from incinerator bottom ash

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this