Pozzolanic Reaction of Recycled Cementitious and Red Ceramic-Waste Aggregates with Hydrated Lime for Pavement Base Layer

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dc.contributor.authorSilva P.B.
dc.contributor.authorAngulo S.C.
dc.contributor.authorMotta R.
dc.contributor.authorBernucci L.L.B.
dc.date.accessioned2024-03-12T19:10:24Z
dc.date.available2024-03-12T19:10:24Z
dc.date.issued2023
dc.description.abstract© 2022 American Society of Civil Engineers.Cement addition and pozzolanic reaction in construction and demolition waste recycled aggregates can stabilize the base of pavements chemically. A way to control and explore the maximum benefits of it is necessary. This study establishes a mix between recycled cementitious and red ceramic-waste aggregates with hydrated lime to enhance pozzolanic reactivity in the material and achieve the best mechanical properties compared with those of a portland cement or recycled concrete aggregate itself pavement base layers. Chemical tests (Chapelle and thermogravimetry), physical tests (grain size distribution, density), and mechanical tests [unconfined compressive strength (UCS) and resilient modulus (RM)] were conducted. The increase of hydrates in the fine fraction of the mixes and the recycled aggregate itself correlated with the resulting increase in UCS and RM. The limited contribution of the self-cementing reaction of recycled cementitious aggregates was quantified, resulting in an UCS of 1 MPa and RM of 1,000 MPa. The pozzolanic reaction of cementitious and red ceramic aggregates with hydrated lime achieved an UCS of 8.4 MPa and RM of 2,800 MPa, values closer to those achieved by a portland cement stabilized pavement base (5.4 MPa and 4,500 MPa, respectively).
dc.description.issuenumber2
dc.description.volume35
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0004579
dc.identifier.issn1943-5533
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34118
dc.relation.ispartofJournal of Materials in Civil Engineering
dc.rightsAcesso Restrito
dc.subject.otherlanguageChemical stabilization
dc.subject.otherlanguageHydrated lime
dc.subject.otherlanguagePavement base
dc.subject.otherlanguagePozzolanic reaction of fines
dc.subject.otherlanguageRecycled cementitious waste aggregates
dc.subject.otherlanguageRecycled red ceramic aggregates
dc.titlePozzolanic Reaction of Recycled Cementitious and Red Ceramic-Waste Aggregates with Hydrated Lime for Pavement Base Layer
dc.typeArtigo
local.scopus.citations5
local.scopus.eid2-s2.0-85143615773
local.scopus.subjectCementitious waste
local.scopus.subjectCeramic aggregates
local.scopus.subjectChemical stabilization
local.scopus.subjectPavement base
local.scopus.subjectPozzolanic reaction
local.scopus.subjectPozzolanic reaction of fine
local.scopus.subjectRecycled cementitious waste aggregate
local.scopus.subjectRecycled red ceramic aggregate
local.scopus.subjectRed ceramic
local.scopus.subjectWaste aggregates
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85143615773&origin=inward
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