Ultra-High-Performance Fiber-Reinforced Concrete: Fresh Properties

Abstract

UHPC is a cement-based composite that is used in new construction and/or renovation of existing structures to increase their service life. It is a unique composite material that may be used as an alternative to concrete in harsh conditions. Following decades of research and development, a wide range of commercial UHPC compositions are now accessible across the world to fulfill the growing number of applications and demand for high-quality construction materials. Although UHPC has significant advantages over conventional concrete, its use is limited because of rigid design restrictions and excessive pricing. As a consequence, a detailed analysis of UHPC's durability qualities is necessary to provide critical information for material testing requirements and methods, as well as to widen its practical applications. The goal of this study is to learn more about UHPC and to encourage more research and use of UHPC.

Ultra-High-Performance Fiber-Reinforced Concrete: Applications

“…ˑThe ˑlack ˑof ˑdesign ˑcodes, ˑinadequate ˑknowledge ˑof ˑboth ˑthe ˑmaterial ˑand ˑproduction ˑtechnology, ˑand ˑexpensive ˑcosts ˑappear ˑto ˑbe ˑlimiting ˑthe ˑimplementation ˑof ˑthis ˑexcellent ˑmaterial ˑbeyond ˑthe ˑearly ˑdemonstration ˑprojects ˑ [8, ˑ20-22]. ˑBoth ˑthe ˑbusiness ˑand ˑpublic ˑsectors ˑare ˑincreasingly ˑpaying ˑcloser ˑattention ˑto ˑand ˑpushing ˑfor ˑgreater ˑefforts ˑto ˑmake ˑuse ˑof ˑthis ˑnovel ˑand ˑpromising ˑmaterial [23][24][25][26][27][28]. Several varieties of "UHPC ˑhave ˑbeen ˑdeveloped ˑto ˑdate ˑin ˑvarious ˑcountries and by various manufacturers, ˑincluding ˑCeracem+, ˑBSI+, ˑcompact ˑreinforced ˑcomposites ˑ(CRC), ˑmultiscale ˑcement ˑcomposite ˑ(MSCC), ˑand ˑreactive ˑpowder ˑconcrete ˑ(RPC) ˑ [29][30][31][32][33][34].…”

“…ˑThis ˑreview ˑincludes ˑfive ˑparts. ˑThe ˑpurpose ˑof this report is to summarize previous research and to suggest some needs for future" research [39][40][41][42][43][44][45].…”

Ultra-high-performance fiber-reinforced concrete (UHPFRC): A mini-review of the challenges

“…ˑTo ˑbreak ˑdown ˑthe ˑbarriers, ˑit ˑis ˑmore ˑvital ˑto ˑtap ˑinto ˑthe ˑdesign ˑof ˑsustainable ˑUHPC ˑ(the ˑfoundation ˑfor ˑyielding ˑsustainable ˑUHPC ˑthat ˑmatches ˑspecifiable ˑfeatures ˑfor ˑa ˑspecific ˑapplication) ˑthan ˑto ˑreplicate" ˑthe ˑold ˑmixing ˑproportions. ˑHowever, ˑresearch ˑon ˑthe ˑdesign ˑof ˑsustainable ˑUHPC is limited [22][23][24][25][26][27].…”

“…ˑThis ˑincludes ˑcomputational ˑfluid ˑdynamics ˑ(CFD), ˑwhich ˑanalyzes ˑconcrete ˑas ˑa ˑfluid ˑand ˑhas ˑlimitations ˑfor ˑmodeling ˑcomposite ˑmaterials ˑwith ˑfibers ˑ [48,49]. ˑThe ˑdiscrete ˑelement ˑmethod ˑ(DEM) ˑcan ˑrecord ˑthe ˑmotion ˑof ˑindividual ˑparticles ˑto ˑmodel ˑflow ˑcharacteristics ˑsuch ˑas ˑblockage, ˑsegregation, ˑand ˑnear ˑboundary walls [50][51][52][53]. The flow of UHPC ˑmay ˑbe ˑeffectively ˑmodeled ˑwhen ˑDEM ˑand ˑCFD ˑare ˑcombined ˑ [48].…”

“…ˑOngoing ˑstudy ˑand ˑinvestigation ˑefforts ˑare ˑfilling ˑknowledge ˑgaps ˑin ˑorder ˑto ˑcommence ˑinnovative, ˑaffordable, ˑsustainable, ˑviable, ˑand ˑeconomical ˑUHPC ˑin ˑthe ˑfuture, ˑwhich ˑwill ˑhave ˑa ˑsignificant ˑimpact ˑon its acceptability. This paper provides a general introduction to UHPC as ˑwell ˑas ˑthe ˑmost ˑup-to-date ˑinformation ˑon ˑits ˑdefinitions, ˑdevelopment, ˑapplications, ˑand ˑproblems ˑ [16][17][18][19][20][21].…”