What about the concrete with different dose of admixture from two sources? Is it allowed to pour in same structure?

Hello Nasir, 
Yes, concrete containing two different admixtures can be allowed to pour into the same structure. 
Kindly check this journal paper which is related to your question. 

https://www.nbmcw.com/product-technology/construction-chemicals-waterproofing/concrete-admixtures/concrete-containing-more-than-two-admixtures.html4