Use of gasification residues in compacted concrete paving blocks

Erika Holt (Corresponding Author), Paula Raivio

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

Research was done to determine the possible uses of fine-grained solid gasification residues in concrete products. Due to the residues' chemical composition, compacted concrete paving blocks were studied as one viable non-structural application of adding the residue. Six different residues were tested in the laboratory at up to 25% replacement by dry weight of either cement or aggregate. After these preliminary laboratory tests, one residue was used in full-scale field tests at the Lakan Betoni factory where 10 and 15% of straw-derived residue was used as a cement replacement. Tensile strength, compressive strength, resistance to freezing–thawing cycles, absorption and leaching were evaluated. The addition of the residue improved the workability of the concrete, provided a beneficial dark coloring and did not adversely affect most properties. The freeze–thaw resistance should be improved by reducing the factory compaction effort to ensure sufficient void space.
Original languageEnglish
Pages (from-to)441-448
Number of pages8
JournalCement and Concrete Research
Volume36
Issue number3
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed

Fingerprint

Gasification
Industrial plants
Cements
Concrete products
Concretes
Straw
Coloring
Leaching
Compressive strength
Compaction
Tensile strength
Chemical analysis

Keywords

  • mixture proportioning
  • admixtures
  • ash
  • gasification

Cite this

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title = "Use of gasification residues in compacted concrete paving blocks",
abstract = "Research was done to determine the possible uses of fine-grained solid gasification residues in concrete products. Due to the residues' chemical composition, compacted concrete paving blocks were studied as one viable non-structural application of adding the residue. Six different residues were tested in the laboratory at up to 25{\%} replacement by dry weight of either cement or aggregate. After these preliminary laboratory tests, one residue was used in full-scale field tests at the Lakan Betoni factory where 10 and 15{\%} of straw-derived residue was used as a cement replacement. Tensile strength, compressive strength, resistance to freezing–thawing cycles, absorption and leaching were evaluated. The addition of the residue improved the workability of the concrete, provided a beneficial dark coloring and did not adversely affect most properties. The freeze–thaw resistance should be improved by reducing the factory compaction effort to ensure sufficient void space.",
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author = "Erika Holt and Paula Raivio",
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Use of gasification residues in compacted concrete paving blocks. / Holt, Erika (Corresponding Author); Raivio, Paula.

In: Cement and Concrete Research, Vol. 36, No. 3, 2006, p. 441-448.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Use of gasification residues in compacted concrete paving blocks

AU - Holt, Erika

AU - Raivio, Paula

PY - 2006

Y1 - 2006

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AB - Research was done to determine the possible uses of fine-grained solid gasification residues in concrete products. Due to the residues' chemical composition, compacted concrete paving blocks were studied as one viable non-structural application of adding the residue. Six different residues were tested in the laboratory at up to 25% replacement by dry weight of either cement or aggregate. After these preliminary laboratory tests, one residue was used in full-scale field tests at the Lakan Betoni factory where 10 and 15% of straw-derived residue was used as a cement replacement. Tensile strength, compressive strength, resistance to freezing–thawing cycles, absorption and leaching were evaluated. The addition of the residue improved the workability of the concrete, provided a beneficial dark coloring and did not adversely affect most properties. The freeze–thaw resistance should be improved by reducing the factory compaction effort to ensure sufficient void space.

KW - mixture proportioning

KW - admixtures

KW - ash

KW - gasification

U2 - 10.1016/j.cemconres.2005.09.013

DO - 10.1016/j.cemconres.2005.09.013

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VL - 36

SP - 441

EP - 448

JO - Cement and Concrete Research

JF - Cement and Concrete Research

SN - 0008-8846

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ER -