Mix-design of self-consolidating concrete (SCC) with construction and demolition concrete waste (C&DW) as recycled aggregates is investigated. The novelty of this paper consists in the possibility of using both fine and coarse high-grade C&DW for the preparation of new SCC. The effects of recycled aggregates on porosity measurements and mechanical investigations combined with time-dependent properties are investigated. A reference SCC mix, with natural aggregates and the same water/powder ratio as SCC with recycled aggregates, is reported for comparison. Results are correlated in an integrated approach to study the feasibility of structural SCC with medium-high mechanical strength. Finally, this work attempts to strengthen the concept of sustainability in civil constructions.
Manzi, S., Mazzotti, C., Bignozzi, M.C. (2015). Self-consolidating concrete with C&DW: microstructure and long-term behavior. Michigan : American Concrete Institute.
Self-consolidating concrete with C&DW: microstructure and long-term behavior
MANZI, STEFANIA;MAZZOTTI, CLAUDIO;BIGNOZZI, MARIA
2015
Abstract
Mix-design of self-consolidating concrete (SCC) with construction and demolition concrete waste (C&DW) as recycled aggregates is investigated. The novelty of this paper consists in the possibility of using both fine and coarse high-grade C&DW for the preparation of new SCC. The effects of recycled aggregates on porosity measurements and mechanical investigations combined with time-dependent properties are investigated. A reference SCC mix, with natural aggregates and the same water/powder ratio as SCC with recycled aggregates, is reported for comparison. Results are correlated in an integrated approach to study the feasibility of structural SCC with medium-high mechanical strength. Finally, this work attempts to strengthen the concept of sustainability in civil constructions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
