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dc.contributor.authorShaikh, Faiz
dc.date.accessioned2017-01-30T13:41:56Z
dc.date.available2017-01-30T13:41:56Z
dc.date.created2015-10-27T20:19:48Z
dc.date.issued2015
dc.identifier.citationShaikh, F. 2015. Effect of ultrafine fly ash on properties of concretes containing construction and demolition wastes as coarse aggregates. Structural Concrete. 17 (1): pp. 116-122.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/34219
dc.identifier.doi10.1002/suco.201500030
dc.description.abstract

This paper presents preliminary results on the effect of ultrafine fly ash (UFFA) on the properties of concretes containing recycled coarse aggregates (RCA) originated from construction and demolition (C&D) wastes. The effect of 10% UFFA on compressive strength, tensile strength, sorptivity and chloride ion permeability of concretes containing 25% and 50% RCA is evaluated at 7, 28 and 56 days. The addition of UFFA increased the compressive strength of recycled aggregates concretes at all ages up to 56 days. However, a slight reduction in the tensile strength of recycled aggregate concretes is observed. Concrete containing 25% RCA and 10% UFFA achieved 94% of the control concrete's compressive strength at 56 days. In both recycled aggregate concretes the sorptivity and chloride ion permeability are much lower at all ages due to the addition of 10% UFFA given the fact that it acts to promote the hydration and block the large capillary pores within the concrete.

dc.publisherJohn Wiley and Sons Ltd.
dc.titleEffect of ultrafine fly ash on properties of concretes containing construction and demolition wastes as coarse aggregates
dc.typeJournal Article
dcterms.source.volumen/a
dcterms.source.startPagen/a
dcterms.source.endPagen/a
dcterms.source.issn17517648
dcterms.source.titlestructural concrete
curtin.departmentDepartment of Civil Engineering
curtin.accessStatusFulltext not available


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