In civil engineering, "25K" or "M25" often refers to a concrete grade with a compressive strength of 25 megapascals (MPa). 25 MPa (approx. 3,625 psi).
"Amari" is a brand name sometimes associated with metals (Amari Metals) or specific chemical mixes. "6.004" would typically denote a specific or alloy specification in these contexts. 25K AMARI MIX COMBO 6.004
A common volumetric ratio for this grade is 1:1:2 (1 part cement, 1 part sand, 2 parts coarse aggregate). In civil engineering, "25K" or "M25" often refers
However, looking at the individual components of the request, it is likely that this refers to a specific or a niche proprietary formula in one of the following fields: 1. Construction & Concrete Mix Design In civil engineering