Low-velocity impact behavior of functionally graded cement-based composites: Combining SFRC, UHPC and textile-reinforced UHPC

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dc.contributor.authorBraga de Carvalho Nunes J.J.
dc.contributor.authorRodrigues de Souza F.
dc.contributor.authorKrahl P.A.
dc.contributor.authorMansur de Castro Silva R.
dc.contributor.authorPires de Paula P.
dc.contributor.authorde Andrade Silva F.
dc.date.accessioned2025-05-01T06:24:14Z
dc.date.available2025-05-01T06:24:14Z
dc.date.issued2025
dc.description.abstract© 2025 Elsevier LtdFunctionally graded cement-based materials can be designed to exhibit high energy dissipation capacity by applying materials in specific positions according to the loading protocol. A layer of Ultra-High-Performance Concrete (UHPC) combined with carbon textiles positioned in the most critical zone is a promising solution to improve the behavior of cement-based composites against impact, which has not yet been fully clarified. This study presents a novel two-layer composite approach, combining Steel Fiber Reinforced Concrete (SFRC) with UHPC and carbon textiles, tested under drop weight impact. Three different energy levels were investigated: 112.8, 225.6, and 338.4 J. The UHPC thin layers were reinforced with smooth or steel hooked end fibers, and a group was combined with Textile Reinforced Concrete (TRC). SFRC and UHPC were cast simultaneously, improving the bond between the matrices. The results highlight that SFRC + UHPC with steel hooked fibers have better impact performance than SFRC + UHPC with smooth fibers, exhibiting better crack opening control, higher impact resistance, and lower deflection. Additionally, the same trend was observed when the UHPC layer was reinforced with TRC, which demonstrated a significant reduction in residual displacements and crack openings, as well as improved energy absorption capacity, with increases of up to 370% compared to conventional specimens, highlighting their potential for high-impact applications.
dc.description.volume161
dc.identifier.doi10.1016/j.cemconcomp.2025.106079
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/40609
dc.relation.ispartofCement and Concrete Composites
dc.rightsAcesso Restrito
dc.subject.otherlanguageCarbon textile reinforced concrete
dc.subject.otherlanguageFiber-reinforced concrete
dc.subject.otherlanguageImpact loading
dc.subject.otherlanguageUltra-high-performance concrete
dc.titleLow-velocity impact behavior of functionally graded cement-based composites: Combining SFRC, UHPC and textile-reinforced UHPC
dc.typeArtigo
local.scopus.citations0
local.scopus.eid2-s2.0-105002791929
local.scopus.subjectCarbon textile reinforced concrete
local.scopus.subjectCement based composites
local.scopus.subjectCrack opening
local.scopus.subjectFiber-reinforced concretes
local.scopus.subjectFunctionally graded
local.scopus.subjectHigh-performance concrete
local.scopus.subjectImpact loadings
local.scopus.subjectSteel fiber reinforced concretes
local.scopus.subjectTextile reinforced concretes
local.scopus.subjectUltra high performance
local.scopus.updated2025-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105002791929&origin=inward
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