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Article: Filler technology of adding granite dust to reduce cement content and increase strength of mortar

TitleFiller technology of adding granite dust to reduce cement content and increase strength of mortar
Authors
KeywordsCarbon footprint
Fillers
Granite dust
Microstructure
Strength
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/powtec
Citation
Powder Technology, 2019, v. 342, p. 388-396 How to Cite?
AbstractA large quantity of granite dust (GD) is being generated from the stoneware industry as waste to be disposed. GD is as fine as cement but is chemically inert, and thus its addition to concrete as cement replacement would increase the water/cement (W/C) ratio and reduce the strength. However, its addition as a filler to improve the packing density of the aggregate could reduce the cement paste volume needed to fill the voids and thus the cement content and carbon footprint. And, at least theoretically, such reduction of the cement paste volume without changing the W/C ratio would not reduce the strength. In this study, this prospective filler technology of adding GD to concrete for waste utilization and carbon footprint reduction was explored. A number of mortar mixes with different amounts of GD added either as cement replacement or as a filler to fill voids were produced for testing. The results showed that the filler technology is much better than the cement replacement method for waste utilization and cement content reduction, and in fact would also improve the strength and microstructure of the mortar produced.
Persistent Identifierhttp://hdl.handle.net/10722/277199
ISSN
2019 Impact Factor: 4.142
2015 SCImago Journal Rankings: 0.991

 

DC FieldValueLanguage
dc.contributor.authorLi, LG-
dc.contributor.authorWang, YM-
dc.contributor.authorTan, YP-
dc.contributor.authorKwan, AKH-
dc.date.accessioned2019-09-20T08:46:31Z-
dc.date.available2019-09-20T08:46:31Z-
dc.date.issued2019-
dc.identifier.citationPowder Technology, 2019, v. 342, p. 388-396-
dc.identifier.issn0032-5910-
dc.identifier.urihttp://hdl.handle.net/10722/277199-
dc.description.abstractA large quantity of granite dust (GD) is being generated from the stoneware industry as waste to be disposed. GD is as fine as cement but is chemically inert, and thus its addition to concrete as cement replacement would increase the water/cement (W/C) ratio and reduce the strength. However, its addition as a filler to improve the packing density of the aggregate could reduce the cement paste volume needed to fill the voids and thus the cement content and carbon footprint. And, at least theoretically, such reduction of the cement paste volume without changing the W/C ratio would not reduce the strength. In this study, this prospective filler technology of adding GD to concrete for waste utilization and carbon footprint reduction was explored. A number of mortar mixes with different amounts of GD added either as cement replacement or as a filler to fill voids were produced for testing. The results showed that the filler technology is much better than the cement replacement method for waste utilization and cement content reduction, and in fact would also improve the strength and microstructure of the mortar produced.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/powtec-
dc.relation.ispartofPowder Technology-
dc.subjectCarbon footprint-
dc.subjectFillers-
dc.subjectGranite dust-
dc.subjectMicrostructure-
dc.subjectStrength-
dc.titleFiller technology of adding granite dust to reduce cement content and increase strength of mortar-
dc.typeArticle-
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hk-
dc.identifier.authorityKwan, AKH=rp00127-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.powtec.2018.09.084-
dc.identifier.scopuseid_2-s2.0-85054568257-
dc.identifier.hkuros305483-
dc.identifier.volume342-
dc.identifier.spage388-
dc.identifier.epage396-
dc.publisher.placeNetherlands-

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