Studio sperimentale sul calcestruzzo autocompattante

Studio sperimentale sul calcestruzzo autocompattante

Vishnu Vardhan Vallepu

73,79 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Ciencia, ingeniería y tecnología medioambientales
ISBN:
9786207668656
73,79 €
IVA incluido
Disponible

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L’SCC è un tipo di calcestruzzo ad alta fluidità senza vibrazioni, noto anche come calcestruzzo autoconsolidante e calcestruzzo ad alte prestazioni, scoperto dall’Università di Tokyo in Giappone negli anni ’80. SCC utilizza solitamente un gran numero di additivi minerali e additivi chimici per raggiungere uno stato denso senza vibrazioni sotto l’azione della propria gravità, quindi riempire la cassaforma con barre d’acciaio dense. L’SCC ha le caratteristiche di resistenza alla segregazione, facile riempimento, facile passaggio, elevata fluidità ed elevata capacità di deformazione e può mantenere l’omogeneità durante e dopo il trasporto e il versamento. Grazie al minor numero di difetti nella microstruttura, l’scc può soddisfare i requisiti di resistenza, stabilità del volume e durabilità del calcestruzzo (Wu et al., 2015). Grazie alle sue elevate prestazioni di lavoro, l’scc è più adatto per il getto di calcestruzzo in massa. Per mantenere la deformabilità e la coesione del calcestruzzo, viene solitamente utilizzato in scc con superfluidificante, una grande quantità di polvere reattiva e additivo di viscosità (Prakash et al., 2021). A causa dell’utilizzo di un contenuto di polvere più elevato nell’scc, nel calcestruzzo ci sono più pori piccoli e meno acqua disponibile (Zhang et al., 2003).

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