I am a chemist working with cementitious formulations.
Below is an example:
Ingredient | % |
OPC | 30 |
Sand | 54.38 |
CAC | 15 |
retarder | 0.12 |
accelerator | 0.2 |
additive | 0.3 |
Total | 100 |
I am only interested in three ingredients: CAC; retarder, and accelerator. I want to vary them as below:
Low high
CAC: 10% 15%
retarder: 0.07% 0.14%
accelerator 0.10% 0.2%
however, in order to varies three ingredients listed above, I have to drag another ingredient, sand, to absorb the changes to make sure CAC+retarder+accelerator+sand=const.
then a 3 ingredients design becomes a 4 ingredients design.
Is there any way I can only work with the 3 ingredients I am interested in?
Thanks