MSWI bottom ash as binder replacement in wood cement composites

V. Caprai; F. Gauvin; K. Schollbach; H.J.H. Brouwers

doi:10.1016/j.conbuildmat.2018.11.153

MSWI bottom ash as binder replacement in wood cement composites

V. Caprai (Corresponding author)
, F. Gauvin
, K. Schollbach
, H.J.H. Brouwers

Building Materials

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

34 Citations (Scopus)

101 Downloads (Pure)

Abstract

Nowadays, the incineration of municipal solid waste (MSW) is widely applied, as it reduces the waste 90% by volume and 80% by mass. The main by-product coming from the MSW incineration is bottom ash (BA). Despite numerous studies concerning the uses of this by-product in the construction field, BA is not widely applied because of two main concerns: (1) the disadvantageous morphology of the particle, leading to a high porosity and water absorption and (2) the presence of harmful contaminants, leaching out from the by-product. Because of its porous structure, BA can be suitable as binder replacement for improving insulation properties of wood composites, usually requiring low flexural strength. Therefore, this study will evaluate the influence of a porous binder containing BA and cement on wood wool cement boards (WWCB). The BA and cement are chemically and physically characterized. Thereafter, cement pastes with different replacement levels of BA (0–50%) are produced to measure mechanical and thermal properties. The same mixes are then used to make WWCB. While the thermal conductivity remains unchanged, the mechanical properties benefit from the use of BA up to 30% wt. due to the reduced macro porosity of the final composite.

Original language	English
Pages (from-to)	672-680
Number of pages	9
Journal	Construction and Building Materials
Volume	196
DOIs	https://doi.org/10.1016/j.conbuildmat.2018.11.153
Publication status	Published - 19 Nov 2019

Funding

The authors would like to acknowledge the financial support provided by NWO domain Applied and Engineering Science, formally NWO (Nederlandse Organisatie voor Wetenschappelijk Onderzoek), the Netherlands, under the project number 13933: “Environmental concrete based on treated MSWI bottom ash”. Furthermore, the authors wish to express their gratitude to K.J. van Meerwijk for the valuable help and support for the tests development, during the project development.

UN SDGs

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

SDG 11 Sustainable Cities and Communities
SDG 12 Responsible Consumption and Production

Keywords

Binder replacement
Composites
Environmental impact
Macro-porosity
MSWI bottom ash
Wood wool

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10.1016/j.conbuildmat.2018.11.153

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Cite this

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title = "MSWI bottom ash as binder replacement in wood cement composites",

abstract = "Nowadays, the incineration of municipal solid waste (MSW) is widely applied, as it reduces the waste 90\% by volume and 80\% by mass. The main by-product coming from the MSW incineration is bottom ash (BA). Despite numerous studies concerning the uses of this by-product in the construction field, BA is not widely applied because of two main concerns: (1) the disadvantageous morphology of the particle, leading to a high porosity and water absorption and (2) the presence of harmful contaminants, leaching out from the by-product. Because of its porous structure, BA can be suitable as binder replacement for improving insulation properties of wood composites, usually requiring low flexural strength. Therefore, this study will evaluate the influence of a porous binder containing BA and cement on wood wool cement boards (WWCB). The BA and cement are chemically and physically characterized. Thereafter, cement pastes with different replacement levels of BA (0–50\%) are produced to measure mechanical and thermal properties. The same mixes are then used to make WWCB. While the thermal conductivity remains unchanged, the mechanical properties benefit from the use of BA up to 30\% wt. due to the reduced macro porosity of the final composite.",

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author = "V. Caprai and F. Gauvin and K. Schollbach and H.J.H. Brouwers",

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AU - Caprai, V.

AU - Gauvin, F.

AU - Schollbach, K.

AU - Brouwers, H.J.H.

PY - 2019/11/19

Y1 - 2019/11/19

N2 - Nowadays, the incineration of municipal solid waste (MSW) is widely applied, as it reduces the waste 90% by volume and 80% by mass. The main by-product coming from the MSW incineration is bottom ash (BA). Despite numerous studies concerning the uses of this by-product in the construction field, BA is not widely applied because of two main concerns: (1) the disadvantageous morphology of the particle, leading to a high porosity and water absorption and (2) the presence of harmful contaminants, leaching out from the by-product. Because of its porous structure, BA can be suitable as binder replacement for improving insulation properties of wood composites, usually requiring low flexural strength. Therefore, this study will evaluate the influence of a porous binder containing BA and cement on wood wool cement boards (WWCB). The BA and cement are chemically and physically characterized. Thereafter, cement pastes with different replacement levels of BA (0–50%) are produced to measure mechanical and thermal properties. The same mixes are then used to make WWCB. While the thermal conductivity remains unchanged, the mechanical properties benefit from the use of BA up to 30% wt. due to the reduced macro porosity of the final composite.

AB - Nowadays, the incineration of municipal solid waste (MSW) is widely applied, as it reduces the waste 90% by volume and 80% by mass. The main by-product coming from the MSW incineration is bottom ash (BA). Despite numerous studies concerning the uses of this by-product in the construction field, BA is not widely applied because of two main concerns: (1) the disadvantageous morphology of the particle, leading to a high porosity and water absorption and (2) the presence of harmful contaminants, leaching out from the by-product. Because of its porous structure, BA can be suitable as binder replacement for improving insulation properties of wood composites, usually requiring low flexural strength. Therefore, this study will evaluate the influence of a porous binder containing BA and cement on wood wool cement boards (WWCB). The BA and cement are chemically and physically characterized. Thereafter, cement pastes with different replacement levels of BA (0–50%) are produced to measure mechanical and thermal properties. The same mixes are then used to make WWCB. While the thermal conductivity remains unchanged, the mechanical properties benefit from the use of BA up to 30% wt. due to the reduced macro porosity of the final composite.

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KW - Composites

KW - Environmental impact

KW - Macro-porosity

KW - MSWI bottom ash

KW - Wood wool

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JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

MSWI bottom ash as binder replacement in wood cement composites

Abstract

Funding

UN SDGs

Keywords

Access to Document

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