Multiobjective Reliability-Based Design Optimization of Recycled Aggregates Used in Corrosive Environment Based on Response Surface Modelling

Table 1

Properties of normal and recycled aggregates.

Mechanical test				Germany specification [33]
Material	Specific gravity	Bulk density	Water absorption (%)	Standard water absorption (%)	Standard specific gravity
NCA	2.73	1561	0.73
NFA	2.65	-	0.79
RCA	2.71	1356	6.33
RFA	2.36	-	9.77
`Chemical analysis
Material
NA				0.05
RA				0.05