2020-141-E AMS - Summit Northern Campus CMAT testing

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DocuSign Envelope ID:90883988-076D-486D-B746-055E86E2D681 Proposal for CMT and Special Inspections Services Proposal Number:T19-0043 Detention Center, EAC and POB (Northern Campus Expansion) September 18, 2019 Hillsborough, North Carolina Cast-In-Place Concrete Construction and Reinforcement Placement Summit will provide a Special Inspections Agent or senior engineering technician working under the supervision of a registered engineer for full-time inspection, sampling, and field testing services during placement of structural concrete for foundations, grade slabs, elevated slabs and hardscapes. Prior to the placement of concrete,we will periodically observe the size,type, and placement(lap lengths, ties,and cover)of the reinforcing steel(rebar)and drilling&epoxied rebar priorto placement of structural cast-in-place concrete. We will also observe the placement, curing, and protection of cast-in-place concrete. We will perform slump, air content, unit weight, and temperature testing during cast-in-place concrete placement. Concrete batch tickets will be monitored during placement for mix design compliance. We will mold one set of five 48 inch concrete compression test cylinders at frequencies specified in the project specifications,for each type of concrete placed per day. Concrete specimens will be picked up and delivered to our laboratory after the initial on-site curing period. We will also provide floor flatness and floor levelness testing for grade slabs and elevated slabs. This will be performed with a FACE Dipstick 2272 Floor Profiler and will be executed in general accordance with ASTM E1155. Structural Masonry and Grout Placement(Level B-Quality Assurance) We will provide a Special Inspections Agent to observe the grout spaces,the size,type, and lap lengths of the reinforcing steel prior to grout placement and perform masonry grout testing. In addition, we will provide a senior engineering technician to assist with grout sampling for during grouting operations. In general the testing will consist of slump and mix temperature testing and molding of one set of four (4) grout samples according to the testing frequencies in the specifications for laboratory compressive strength testing. Grout samples will be retrieved from the site and transported to our laboratory and placed in the proper curing facilities within 48 hours.A site-curing box will be required to maintain proper curing temperatures during the initial 24 to 48 hours. Structural Steel Framing We will provide a Special Inspections Agent and/or a Certified Welding Inspector (AWS-CWI) for observation and inspection during field welding and review of welding materials, equipment, mill certifications and welder qualifications. We will perform visual inspection of structural bolting, field welding, shear wall connections and patterns in accordance with the project plans and specifications. Once fabrication drawings are produced,we will also better understand any non-destructive testing(NDT) required for moment connections. We will also observe seismic resistance components. Pavements and Bases Observation and Testing Summit will provide a Field Technician II working under the supervision of a registered engineer to observe proofrolls of the prepared soil subgrade prior to ABC stone, observe and test asphalt and concrete paving operations, and obtain cores samples for density requirements.ABC stone base compaction tests will also be performed by the nuclear gauge method or sand-cone method, as related to a standard proctor