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City of Orono – Orono Public Works Facility, Orono, MN <br />AET Proposal No. P-0012042 <br />September 15, 2022 <br />Page 5 of 10 <br /> <br /> <br /> Observe that the correct lengths of bar lap splices are provided. <br /> Observe that the proper clearance is provided between the bars and the masonry <br />units. <br /> Observe the general construction practices, including compliance with proper cold or <br />hot weather protection as required by the project specifications. <br /> <br />We estimate that our Engineering Technician II will make 4 trips to conduct these <br />observation and testing services. <br /> <br />Any discrepancies from the project specifications will be brought to the attention of the <br />contractor and/or their subcontractor. Daily field reports of our observations and testing <br />will be available to the contractor and other authorized site personnel. <br /> <br />While at the site the Engineering Technician II will also sample the mortar and grout. The <br />grout “prism” specimens will be cast for compressive strength testing according to IBC <br />guidelines. One set of four grout “prisms” will be cast according to the testing frequency <br />required by the project specifications. One of the “prisms” will be tested for compressive <br />strength after 7 days and two will be tested after 28 days. The fourth specimen will be <br />held for future testing, if required. <br /> <br />The project specifications state that compressive strength testing must be conducted on <br />sets of masonry block prisms cast from each size of block used during construction. Each <br />set will include a minimum 3 prisms tested at 28 days, additional prisms will be cast if <br />earlier breaks are required. The prisms will be fabricated at the site and returned to our <br />laboratory for testing. The testing will be performed in accordance with ASTM: C1314. <br /> <br /> Welded and Bolted Connection Observations <br />During erection of the structural steel frame, steel joists, and metal decking, AET will <br />provide an Engineering Technician II (AWS/ICC Certified Welding Inspector) certified in <br />accordance with ASNT to perform observations of the welded and bolted connections. <br />These services will be performed on an on-call basis when requested by the contractor. <br />Our services will include the following: <br /> <br /> Observe bolted connections for compliance with Section 9a of the "Specification for <br />Structural Joints using ASTM: A325 or ASTM: A490 Bolts" approved by the Research <br />Council on Structural Connections. <br /> Observe welded connections for compliance with the requirements of Section 6 (steel <br />frame) of the AWS "Structural Welding Code" D1.1. Fillet welds will be visually <br />observed for length, quality and suitability. Full or partial penetration welds will be <br />tested by ultrasonic or magnetic particle methods. <br /> Observe deck welds for compliance with the requirements of the AWS “Structural <br />Welding Code” D1.3. <br /> Observe deck fasteners to verify that the correct number and spacing is provided in