11831 AIRPORT RD WHOLE SITE FILE 2020-01-21

used for producing joints shall be designed and manufactured for the purpose and shall not otherwise damage or mar the surface. Vibrating equipment shall not be used for placement or compaction of pervious concrete. 5-06.3(5) Measuring and Batching Materials Measuring and batching materials for pervious concrete pavement shall conform to the requirements of Section 5-05.3(4). 5-06.3(6) Acceptance For acceptance, pervious concrete pavement will be divided into lots as follows: A single lot (lot) is represented by the lesser of: one (1) day's production or 360 square yards of pervious concrete in place. Where the Contractor has more than one crew placing pervious concrete, lots will be associated with each crew. Representative lot size will be determined to the nearest square yard. If no sample is taken on a Day, that Day's quantities may be included in the next or previous Day's lot(s). The Engineer may isolate an area of pervious concrete within a lot that is deemed to be defective in any way and such an area will be considered to be a new lot for purposes of acceptance. New lots determined in this manner shall be extended as necessary such that they are bounded by planned joints. Acceptance of a lot of pervious concrete pavement will be based on the following criteria: 1. Grade: Conform to the dimensions, lines, slopes and grades specified on the plans. Pervious concrete pavement shall be true to planned grades and shall not deviate from grade more than 1/4 inch in ten (10)feet. Where abutting existing facilities such as sidewalks, walkways, curbs, driveways or other pavements, the pervious concrete shall be flush. 2. Conformance to JMF: The pervious concrete pavement used shall conform to the mix design for the JMF within the limits as set forth in Section 6-02.3(5)C and as determined from the accepted test panel. 3. Compacted Thickness and Average Hardened Density: After a minimum of seven (7) calendar days of curing, remove and measure three (3) cores from each lot. Remove cores in accordance with ASTM C42/C42M. Measure the length of each core in accordance with ASTM C1542/1542M. No single core shall be less than 3/4 inch of the design depth on the drawings. The average of all cores from a lot shall be within minus 3/8 inch of the design depth on the plans. After length is measured, measure hardened density of each core in the lot in accordance with ASTM C1754/C1754M. The hardened density from a lot must be within +/- 5 percent of the average hardened density of the JMF (approved test panel). 4. Infiltration Rate: The infiltration rate at any single test point shall not be less than 100 inches per hour. 5. Fresh Density: The fresh density of each lot will be measured by ASTM C1688 at the point of placement shall be within +/-five (5) pounds per cubic foot of the fresh density determined from the JMF (approved test panel). 6. Appearance: The appearance of each lot shall be consistent with the JMF (approved test panel). The pervious concrete pavement shall have a consistent surface texture, shall not be raveled, shall be free of ridges or other surface imperfections, shall have joints that are in the specified location and are constructed per specification, and shall be free of cracks. Testing for acceptance will be performed by the Engineer. Swift Green Line—Corridor Stations Special Provisions SP82 May 2017