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BURNCO Colorado, LLC <br /> BURNCO 301 Centennial Drive <br /> Milliken, CO 80543 <br /> Mix : 45C2N1 C4C <br /> Period : 01/07/2020 to 04/01/2020 <br /> Date gate � Air Content Slump Tem Concrete 3D Str 7D Str 28D Str <br /> P % in deg F psi psi psi <br /> 01/21/2020 910568 6.90 3.50 66 3210 4760 6110 <br /> 01/15/2020 50603 5.60 5.00 62 3720 5560 <br /> 910561 7.20 4.00 64 2940 4530 5650 <br /> 01/10/2020 716773 7.10 5.00 65 4410 6120 <br /> 716772 6.50 5.50 68 4970 6150 <br /> 01/07/2020 64921-S 7.00 5.00 64 4190 4350 5810 <br /> Date: 6/11/2020 Page 2 of 2 <br />