Agenda - Council - 04/25/2023 - Laserfiche WebLink

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City of Ramsey — Ramsey Water Treatment Plant AET Proposal No. P-0021454 April 10, 2023 Page 3 of 8 ENGINEERING rEsTiNG Reinforcing Steel Observations Prior to placement of concrete AET will observe the mild reinforcing steel placed in the formwork for cast -in -place concrete elements for the building. These observations will be performed on an on -call basis by an experienced Engineering Technician II working under the guidance of ICC certified personnel. While at the site, the AET personnel will perform the following services: • Review the most recent plans and specifications available at the jobsite. • Observe that the correct number, size, alignment, and spacing of the bars are provided for the structural elements observed. • Observe that the reinforcing steel bars are provided with the specified cover from formwork, the ground surface, and any future concrete elements. • Observe that the bars are free of dirt, rust, scale, ice, or other deleterious materials that will reduce adhesion to the concrete. • Observe that anchor bolts are installed in the concrete at the spacing indicated on the project plans. Any discrepancies or deficiencies that are observed will be brought to the attention of the contractor and/or their subcontractor. Daily reports of our observations will be available to the contractor and/or authorized personnel at the site. AET does not provide surveying services, therefore, our observations of the reinforcing steel will be based on the positioning of the formwork by the contractor and/or their subcontractors. We are not responsible for the exact locations of the formwork, structural bolts, or embedded items. Concrete Testing Personnel from AET will perform testing of concrete on an on -call basis when requested by the contractor. These services will be performed by experienced, ACI certified Engineering Technician II at the frequencies required by the project specifications. On site visits when we are observing reinforcing steel, we will have the same Engineering Technician II remain at the site to perform testing of the concrete, thus reducing mobilization charges. Our services will include the following: • Document that the correct mix is delivered to the site by checking the delivery slips. • Test the slump of the plastic concrete delivered to the site. • Test the air content of the plastic concrete delivered to the site. • Measure the temperature of the plastic concrete delivered to the site. • Compare the test results to the requirements of the project specifications. Any discrepancies from the project specifications will be brought to the attention of the contractor and/or their subcontractor. Daily field reports of our observations and testing will be available to the contractor and other authorized personnel at the site.