UM
Mechanical Behavior of Thin-Laminated Cementitious Composites Incorporating Cenosphere Fillers
Hanif, Asad; Cheng, Yu; Lu, Zeyu; Li, Zongjin
2018
Source PublicationACI MATERIALS JOURNAL
ISSN0889-325X
Volume115Issue:1Pages:117-127
AbstractThis study evaluates the suitability of fly ash cenosphere (FAC) for use in thin laminated cementitious composites (LCC). Laminated cementitious composites are reinforced concrete elements constructed of hydraulic cement mortar and closely spaced layers of mesh reinforcement. In this study, FAC was used in the mortar matrix instead of sand (a typical ingredient of hydraulic cement mortar). Various weight fractions (40, 50, and 60%) of FAC were used in preparing the mortars while discontinuous polyvinyl alcohol (PVA) fibers were also incorporated, in small amounts (0.50%), for improved matrix stiffness. Galvanized iron welded wire mesh and fiberglass woven mesh were used as primary reinforcement in LCC specimens. The resulting matrixes and LCC specimens were tested for mechanical properties and flexural performance. The properties of developed LCCs incorporating FAC were also compared with their counterparts fabricated with high-strength silica sand mortar matrix. Fly ash cenosphere was determined suitable in producing structural lightweight LCCs (specific strength range; 7.52 to 26.65 kPa/kgm(-3) [17.47 to 61.92 psi/pcf]) with excellent mechanical properties while having improved the characteristic brittleness associated with lightweight composites. Further, FAC-incorporated LCCs exhibited better ductility even at lower peak flexural strength. A 50% FAC weight fraction has been proved to be the most efficient in producing strong lightweight LCCs for practical applications as structural elements.
Keywordcement-based composite flexural strength fly ash cenosphere laminated composite lightweight
DOI10.14359/51701007
URLView the original
Indexed BySCI
Language英语
WOS Research AreaConstruction & Building Technology ; Materials Science
WOS SubjectConstruction & Building Technology ; Materials Science, Multidisciplinary
WOS IDWOS:000428118500011
PublisherAMER CONCRETE INST
The Source to ArticleWOS
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Recommended Citation
GB/T 7714
Hanif, Asad,Cheng, Yu,Lu, Zeyu,et al. Mechanical Behavior of Thin-Laminated Cementitious Composites Incorporating Cenosphere Fillers[J]. ACI MATERIALS JOURNAL,2018,115(1):117-127.
APA Hanif, Asad,Cheng, Yu,Lu, Zeyu,&Li, Zongjin.(2018).Mechanical Behavior of Thin-Laminated Cementitious Composites Incorporating Cenosphere Fillers.ACI MATERIALS JOURNAL,115(1),117-127.
MLA Hanif, Asad,et al."Mechanical Behavior of Thin-Laminated Cementitious Composites Incorporating Cenosphere Fillers".ACI MATERIALS JOURNAL 115.1(2018):117-127.
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