Civil Engineering Reference
In-Depth Information
Fig. 5.50 Experimental and predicted creep deformation of NAC and RCAC with 100 % coarse
RCA (Domingo-Cabo et al.
2010
)
coefficient and specific creep of RCAC's with complete replacement of coarse NA
by two types of RCA generated from concrete containing river gravel of limestone
gravel in the Fathifazl et al. (
2011
) study were comparable to or lower than those
of the equivalent NAC when the RCAC's were prepared by the EMV method. On
the other hand, both parameters for RCAC's prepared by the usual method are
higher than those of the NAC. The creep coefficient of RCAC also depended on
the residual mortar content in RCA. Concrete with RCA with higher mortar
content had higher creep. The authors also proposed a residual mortar factor to fit
their experimental results with those predicted by ACI-209 code-1982 and CIB-
FIP model code.
