Agenda - Council - 06/27/2017 - Laserfiche WebLink

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SALT Schedule of Materials Control - Local Government Agency 2301 CONCRETE PAVEMENT - AGENCY 1 of 2 * Test Type (concrete manual) Gradation (1) (5-694.145) (5-694.148) Aggregate Moisture - QC Verification (2) (5-694.142) Water Content, Microwave Oven Verification (3) (5-694.532) Coarse Aggregate, -200 sieve (5-694.146) Coarse and Fine Aggregate Quality (4) Alkali Silica Reactivity (ASR) Testing Coarse Aggregate Quality Testing of Incentive / Disincentive Concrete Manual Spec. Concrete Paving Batch Plant Certified Ready -Mix Plant Agency Testing Agency Testing Test the first 4 QA samples of production each time the Contractor 3126 mobilizes the plant in a calendar year or changes aggregate sources. 3137 1 per day randomly thereafter. If w/c incentives apply: 1 per 1000 3126 yd3 or every 4 hours, whichever is 3137 greater. Take initial sample within the first 250 yd3. Take initial sample within the first 250 yd3. At least one additional verification test should be taken if more than 1000 yd3 is produced in a day. 1 per 1000 yd3 or 1 per week whichever is higher, randomly. If w/c incentives apply: 1 per 200 yd3 or every 4 hours, whichever is greater. Take initial sample within the first 100 yd3. Take initial sample within the first 100 yd3. At least one additional verification test should be taken if more than 400 yd3 is produced in a day. 1 randomly selected sample on the first day of production and each time the Contractor mobilizes the plant, changes the aggregate 3137 sources, or the cleanliness of the coarse aggregate is in question, then 1 per week randomly thereafter. -200 test may be performed at the lab instead at the plant at the discretion of the Engineer. During concrete production: 1 randomly selected test each fraction every 20,000 yd3 of production. Split the Quality sample 4 ways: 1) 3126 Provide 2 quarters of the sample to the producer/contractor. 2) Test 3137 the -200 on the coarse aggregate at the plant the day it was sampled. 3) Submit the remaining sample to the lab for quality testing including testing the -200 sieve on the coarse aggregate. 1 per paving project per sand source. Provide one 5 Ib. sample of: cement, supplementary cementitious material (fly ash or slag), and 2301 sand. Write "Project Specific ASR Testing" on all 3 sample cards. ASR Testing is not required if the entire project is less than 3,500 cubic yards. If coarse aggregate quality incentives apply: Test the Class B aggregates for % absorption and Class C aggregates for % carbonate including any other test necessary to make those determinations. Sample the 2 largest fractions in accordance with the following table and 2301: Coarse Aggregate Quality Incentive/Disincentive Sampling Rates 3137 Plan Concrete Cubic Yards 3,500 - 7,500 7,501 - 10,000 10,001 - 25,000 25,001 - 50,000 50,001 + Samples per fraction 3 5 10 15 20 Form 21764 Agg Work sheet Concrete W/C Ratio Work sheet 21764 Agg Work sheet 2410 Sample ID Card 2410 24300 24308 Coarse Agg Quality Incent / Disincent Work sheet *Use Certified Ready -Mix Concrete testing rates when: a) The entire concrete paving project is less than 3,500 cu.yd. b) When a secondary plant is used to provide minor work. Agencies using MnDOT Metro Inspection Services will be sampled at the current MnDOT Schedule of Materials Control rates and will be billed accordingly. Contact the MnDOT District IA Inspector to provide servicing of your Federal Aid Project. 2017