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Article: Adding granite dust as paste replacement to improve durability and dimensional stability of mortar

TitleAdding granite dust as paste replacement to improve durability and dimensional stability of mortar
Authors
KeywordsCarbonation
Dimensional stability
Drying shrinkage
Durability
Fillers
Issue Date2018
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/powtec
Citation
Powder Technology, 2018, v. 333, p. 269-276 How to Cite?
AbstractIn a recent study by the authors, it has been found that the addition of granite dust (GD) as paste replacement (addition of GD to replace an equal volume of cementitious paste with the water/cementitious materials ratio kept constant) to decrease the cementitious paste volume in mortar offers substantial benefits in cement content reduction (and thus carbon footprint reduction), waste utilization, strength improvement and microstructure densification. In this study, the authors extended the research program to evaluate the effects of adding GD as paste replacement on the durability and dimensional stability of mortar. A series of mortar mixes with varying GD volume and water/cement ratio but similar workability achieved by adjusting the superplasticizer dosage were made for mini slump cone test, carbonation test, water absorption test and drying shrinkage test. The test results revealed that adding GD as paste replacement could substantially improve the carbonation and water resistances, reduce the ultimate shrinkage strain and shrinkage rate, and at the same time, reduce the cement content by up to 25%.
Persistent Identifierhttp://hdl.handle.net/10722/263237
ISSN
2017 Impact Factor: 3.23
2015 SCImago Journal Rankings: 0.991
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, LG-
dc.contributor.authorWang, YM-
dc.contributor.authorTan, YP-
dc.contributor.authorKwan, AKH-
dc.contributor.authorLi, LJ-
dc.date.accessioned2018-10-22T07:35:42Z-
dc.date.available2018-10-22T07:35:42Z-
dc.date.issued2018-
dc.identifier.citationPowder Technology, 2018, v. 333, p. 269-276-
dc.identifier.issn0032-5910-
dc.identifier.urihttp://hdl.handle.net/10722/263237-
dc.description.abstractIn a recent study by the authors, it has been found that the addition of granite dust (GD) as paste replacement (addition of GD to replace an equal volume of cementitious paste with the water/cementitious materials ratio kept constant) to decrease the cementitious paste volume in mortar offers substantial benefits in cement content reduction (and thus carbon footprint reduction), waste utilization, strength improvement and microstructure densification. In this study, the authors extended the research program to evaluate the effects of adding GD as paste replacement on the durability and dimensional stability of mortar. A series of mortar mixes with varying GD volume and water/cement ratio but similar workability achieved by adjusting the superplasticizer dosage were made for mini slump cone test, carbonation test, water absorption test and drying shrinkage test. The test results revealed that adding GD as paste replacement could substantially improve the carbonation and water resistances, reduce the ultimate shrinkage strain and shrinkage rate, and at the same time, reduce the cement content by up to 25%.-
dc.languageeng-
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/powtec-
dc.relation.ispartofPowder Technology-
dc.subjectCarbonation-
dc.subjectDimensional stability-
dc.subjectDrying shrinkage-
dc.subjectDurability-
dc.subjectFillers-
dc.titleAdding granite dust as paste replacement to improve durability and dimensional stability 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.2018.04.055-
dc.identifier.scopuseid_2-s2.0-85046011331-
dc.identifier.hkuros293793-
dc.identifier.volume333-
dc.identifier.spage269-
dc.identifier.epage276-
dc.identifier.isiWOS:000433655400026-
dc.publisher.placeSwitzerland-

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