The objective of this comparative is to know the ultimate strength of job mix 1:2:3. As we can see the cement factor of job mix 1:2:3 in one cubic meter is 400 kilograms while the 2500 Psi is 352 kilograms. Another thing the job mix 1:2:3 doesn't use while the 2500 Psi used a minimum dosage of admixture 0.0075 by cement. This comparison of job mix 1:2:3 and 2500 Pump mix is really challenging in construction.