Utilization of Six Sigma in Quality Improvement of Recycled Aggregates Concrete

Table 3

Factors for the different mix design used in the preliminary DOE program.

Mix	w/c	% Coarse RA	% Fine RA
1	0.5	25	25
2	0.5	25	75
3	0.5	75	25
4	0.5	75	75
5	0.7	25	25
6	0.7	25	75
7	0.7	75	25
8	0.7	75	75