Champion Concrete High Strength Mix Design Results 28 Day Strength Sample #: "UC, psi" 1 11000 2 11100 3 11200 4 10800 5 12500 6 13000 7 11800 8 11500 9 11600 10 11200 11 11700 12 10500 13 11600 14 11700 15 11900 16 10500 17 11200 18 12800 19 11900 20 11200 21 10300 22 10100 23 12200 24 10600 25 12300 26 13200 27 11600 28 11100 29 11700 30 11400 31 11900 32 10900 33 10700 34 10400 35 11200 36 10100 37 11300 38 13100 39 12900 40 13200 41 10100 42 10400 43 12000 44 10300 45 11300 46 13400 47 11900 48 10900 49 11500 50 11800 51 12300 52 12900 53 12700 54 13400 55 11600 56 10600 57 11800 58 13200 59 12700 60 13400