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Mr. Ian De Mello <br />Shubin & Bass, PA <br />Physical & Chemical Laboratory Testing - 334 Atlantic Avenue <br />Table 1- Summary of Core Locations <br />Core <br />No. I <br />Core <br />Location <br />1 <br />Main House Footing <br />2 <br />Main House Footing <br />3 <br />Boat House Footing <br />2.77 <br />Boat House Footing <br />954 <br />Exterior Column <br />LABORATORY TESTING <br />Cores - Compressive Strength <br />December 6, 2022 <br />Page 2 <br />NV5 Project No. 18005.00 <br />Concrete cores labeled as 1, 3 and 4 were tested using the following: <br />• Compressive Strength in general accordance with ASTM C42-20, Standard Test Method for <br />Obtaining and Testing Drilled Cores and Sawed Beams of Concrete. <br />The concrete cores were trimmed to the appropriate test correction factor of approximately 2:1 length <br />to diameter ratio. The core samples were capped with a high-strength capping compound (TMI CA - <br />0100 Capping Compound) and later subjected to compressive strength testing. The results ranged <br />from 4,020 to 4,860 pounds per square inch (psi). The compressive strength results are summarized <br />in Table 2 and presented in Appendix A. <br />Table 2 - Summary of Compressive Strength Test Results <br />Core <br />No. <br />Core <br />Location <br />Diameter <br />in. <br />Original <br />Length <br />in. <br />Unit Weight <br />Compressive <br />Strength si <br />1 <br />Main House Footing <br />2.77 <br />5.92 <br />130.88 <br />4,240 <br />3 <br />Boat House Footing <br />2.77 <br />5.73 <br />141.00 <br />4,020 <br />4 i <br />Boat House Footing <br />2.77 <br />6.98 <br />130.40 <br />4,860 <br />U <br />CONSTRUCTION Q UALITYASSU RANCE -- INFRASTRUCTURE - ENERGY - PROGRAM MANAGEMENT - ENVIRONMENTAL <br />Page 34 of 98 45 <br />