Common use of Intermediate Rolling Clause in Contracts

Intermediate Rolling. The rubber tired roller shall be close behind the break down roller after the mat has cooled a few degrees. The rubber tired roller shall roll the same pattern making the same coverage as the breakdown. The rubber tired roller should stay the thickness of the lift from the free edge. The number of coverages shall be determined by the contractor. This will change with temperature, humidity and thickness of the lift. S-1.12.2.2 Longitudinal Joint Break Down Rolling of Paving Lanes Succeeding Initial Lanes The break down roller in the vibratory mode shall lap over the tucked joint approximately six inches (6”) on to the previously placed compacted lane. As part of the break-down rolling and immediately after the break-down roller completes its first passes, the longitudinal joint shall be pinched to ensure compaction with the pneumatic-tired roller. The rubber tired roller shall make at least one complete pass (forward and backward) operated on the hot lane with the outside tire pinching the joint. After the rubber tired roller rolls the joint, it shall make at least one pass over the rest of the mat and then drop back to its intermediate rolling. The steel drum roller in static mode shall immediately smooth out the rubber tired marks. Finish rolling should start when the mat has cooled down 20F to 40F below the intermediate rolling (This could be approximately 225F). The steel wheeled roller in static mode shall immediately smooth out the rubber tired marks using the same pattern making the same type coverages as the breakdown roller. Do not roll until cracks appear, let it cool. Finish rolling can continue until the temperature reaches 175F to 150F. The finish rolling shall continue until the pavement is smooth and has the density specified above. S-1.13 Sampling Pavements for Density Samples of finished pavement shall be obtained by the contractor or the contractor’s laboratory. A minimum of one test (three cores) shall be taken for each tonnage lot represented by a Superpave Asphaltic Concrete test. Lots larger than 1200 tons shall have one set of (three cores) for each 1000 tons placed or as directed by the Engineer. The cores samples shall be taken at locations throughout the tonnage lot. The locations shall not be previously marked. The core locations shall be marked by the City Engineer after each tonnage lot placement is completed. Cores shall be at least 4 inches in diameter. Sample holes shall be backfilled by the contractor using Quikrete, Rapid Road Repair manufactured by The Quikrete Companies, Xxxxxxx Xxxxxxx, 00000, Crystex manufactured by L&M Construction Chemicals Inc., Xxxxx Xxxxxxxx, 00000 or approved equal. The top of the patch shall be sprayed black with paint. The samples shall be tested by the contractor’s laboratory to determine conformance to density and thickness. The City Engineer may require the contractor to take more samples at the contractor’s expense if the density is marginal. S-1.14 Density and Density Test Density of the compacted mixture of the surface or intermediate course shall be determined by tests made on specimens taken from the compacted course in accordance with the requirements of the previous paragraph: SAMPLING PAVEMENTS FOR DENSITY. The density shall be the average of the three cores 92% to 96% of max theoretical specific gravity of the Superpave Asphaltic Concrete test for the lot. No core shall be less than 90%. S-1.15 Weather Limitations Weather limitations in Section 611.3(b) of the Standard Specifications shall apply except that the following table shall be used. Asphalt Placement Temperature Limitations Paving Course Compacted Thickness (inches) Air Temperature (°F) Road Surface Temp. (°F) Surface All 55 60 Subsurface < 1.5 50 55 Subsurface ≥ 1.5 and < 3 40 45 Subsurface ≥ 3 30 35

Intermediate Rolling. The rubber tired roller shall be close behind the break down roller after the mat has cooled a few degrees. The rubber tired roller shall roll the same pattern making the same coverage as the breakdown. The rubber tired roller should stay the thickness of the lift from the free edge. The number of coverages shall be determined by the contractor. This will change with temperature, humidity and thickness of the lift. S-1.12.2.2 Longitudinal Joint Break Down Rolling of Paving Lanes Succeeding Initial Lanes The break down roller in the vibratory mode shall lap over the tucked joint approximately six inches (6”) on to the previously placed compacted lane. As part of the break-down rolling and immediately after the break-down roller completes its first passes, the longitudinal joint shall be pinched to ensure compaction with the pneumatic-tired roller. The rubber tired roller shall make at least one complete pass (forward and backward) operated on the hot lane with the outside tire pinching the joint. After the rubber tired roller rolls the joint, it shall make at least one pass over the rest of the mat and then drop back to its intermediate rolling. The steel drum roller in static mode shall immediately smooth out the rubber tired marks. Finish rolling should start when the mat has cooled down 20F 20°F to 40F 40°F below the intermediate rolling (This could be approximately 225F225°F). The steel wheeled roller in static mode shall immediately smooth out the rubber tired marks using the same pattern making the same type coverages as the breakdown roller. Do not roll until cracks appear, let it cool. Finish rolling can continue until the temperature reaches 175F 175°F to 150F. 150°F. The finish rolling shall continue until the pavement is smooth and has the density specified above. S-1.13 Sampling Pavements for Density Samples of finished pavement shall be obtained by the contractor or the contractor’s laboratory. A minimum of one test (three cores) shall be taken for each tonnage lot represented by a Superpave Asphaltic Concrete test. Lots larger than 1200 tons shall have one set of (three cores) for each 1000 tons placed or as directed by the Engineer. The cores samples shall be taken at locations throughout the tonnage lot. The locations shall not be previously marked. The core locations shall be marked by the City Engineer after each tonnage lot placement is completed. Cores shall be at least 4 inches in diameter. Sample holes shall be backfilled by the contractor using Quikrete, Rapid Road Repair manufactured by The Quikrete Companies, Xxxxxxx XxxxxxxAtlanta Georgia, 0000030329, Crystex manufactured by L&M Construction Chemicals Inc., Xxxxx XxxxxxxxOmaha Nebraska, 00000 68152 or approved equal. The top of the patch shall be sprayed black with paint. The samples shall be tested by the contractor’s laboratory to determine conformance to density and thickness. The City Engineer may require the contractor to take more samples at the contractor’s expense if the density is marginal. S-1.14 Density and Density Test Density of the compacted mixture of the surface or intermediate course shall be determined by tests made on specimens taken from the compacted course in accordance with the requirements of the previous paragraph: SAMPLING PAVEMENTS FOR DENSITY. The density shall be the average of the three cores 92% to 96% of max theoretical specific gravity of the Superpave Asphaltic Concrete test for the lot. No core shall be less than 90%. S-1.15 Weather Limitations Weather limitations in Section 611.3(b) of the Standard Specifications shall apply except that the following table shall be used. Asphalt Placement Temperature Limitations Paving Course Compacted Thickness (inches) Air Temperature (°F) Road Surface Temp. (°F) Surface All 55 60 Subsurface < 1.5 50 55 Subsurface ≥ 1.5 and < 3 40 45 Subsurface ≥ 3 30 35

Intermediate Rolling. The rubber tired roller shall be close behind the break down roller after the mat has cooled a few degrees. The rubber tired roller shall roll the same pattern making the same coverage as the breakdown. The rubber tired roller should stay the thickness of the lift from the free edge. The number of coverages shall be determined by the contractor. This will change with temperature, humidity and thickness of the lift. S-1.12.2.2 Longitudinal Joint Break Down Rolling of Paving Lanes Succeeding Initial Lanes The break down roller in the vibratory mode shall lap over the tucked joint approximately six inches (6”) on to the previously placed compacted lane. As part of the break-down rolling and immediately after the break-down roller completes its first passes, the longitudinal joint shall be pinched to ensure compaction with the pneumatic-tired roller. The rubber tired roller shall make at least one complete pass (forward and backward) operated on the hot lane with the outside tire pinching the joint. After the rubber tired roller rolls the joint, it shall make at least one pass over the rest of the mat and then drop back to its intermediate rolling. The steel drum roller in static mode shall immediately smooth out the rubber tired marks. Finish rolling should start when the mat has cooled down 20F to 40F below the intermediate rolling (This could be approximately 225F). The steel wheeled roller in static mode shall immediately smooth out the rubber tired marks using the same pattern making the same type coverages as the breakdown roller. Do not roll until cracks appear, let it cool. Finish rolling can continue until the temperature reaches 175F to 150F. The finish rolling shall continue until the pavement is smooth and has the density specified above. S-1.13 Sampling Pavements for Density Samples of finished pavement shall be obtained by the contractor or the contractor’s laboratory. A minimum of one test (three cores) shall be taken for each tonnage lot represented by a Superpave Asphaltic Concrete test. Lots larger than 1200 tons shall have one set of (three cores) for each 1000 tons placed or as directed by the Engineer. The cores samples shall be taken at locations throughout the tonnage lot. The locations shall not be previously marked. The core locations shall be marked by the City Engineer after each tonnage lot placement is completed. Cores shall be at least 4 inches in diameter. Sample holes shall be backfilled by the contractor using Quikrete, Rapid Road Repair manufactured by The Quikrete Companies, Xxxxxxx XxxxxxxAtlanta Georgia, 0000030329, Crystex manufactured by L&M Construction Chemicals Inc., Xxxxx XxxxxxxxOmaha Nebraska, 00000 68152 or approved equal. The top of the patch shall be sprayed black with paint. The samples shall be tested by the contractor’s laboratory to determine conformance to density and thickness. The City Engineer may require the contractor to take more samples at the contractor’s expense if the density is marginal. S-1.14 Density and Density Test Density of the compacted mixture of the surface or intermediate course shall be determined by tests made on specimens taken from the compacted course in accordance with the requirements of the previous paragraph: SAMPLING PAVEMENTS FOR DENSITY. The density shall be the average of the three cores 92% to 96% of max theoretical specific gravity of the Superpave Asphaltic Concrete test for the lot. No core shall be less than 90%. S-1.15 Weather Limitations Weather limitations in Section 611.3(b) of the Standard Specifications shall apply except that the following table shall be used. Asphalt Placement Temperature Limitations Paving Course Compacted Thickness (inches) Air Temperature (°F) Road Surface Temp. (°F) Surface All 55 60 Subsurface < 1.5 50 55 Subsurface ≥ 1.5 and < 3 40 45 Subsurface ≥ 3 30 35

Intermediate Rolling. The rubber tired roller shall be close behind the break down roller after the mat has cooled a few degrees. The rubber tired roller shall roll the same pattern making the same coverage as the breakdown. The rubber tired roller should stay the thickness of the lift from the free edge. The number of coverages shall be determined by the contractor. This will change with temperature, humidity and thickness of the lift. S-1.12.2.2 Longitudinal Joint Break Down Rolling of Paving Lanes Succeeding Initial Lanes The break down roller in the vibratory mode shall lap over the tucked joint approximately six inches (6”) on to the previously placed compacted lane. As part of the break-down rolling and immediately after the break-down roller completes its first passes, the longitudinal joint shall be pinched to ensure compaction with the pneumatic-tired roller. The rubber tired roller shall make at least one complete pass (forward and backward) operated on the hot lane with the outside tire pinching the joint. After the rubber tired roller rolls the joint, it shall make at least one pass over the rest of the mat and then drop back to its intermediate rolling. The steel drum roller in static mode shall immediately smooth out the rubber tired marks. Finish rolling should start when the mat has cooled down 20F 20°F to 40F 40°F below the intermediate rolling (This could be approximately 225F225°F). The steel wheeled roller in static mode shall immediately smooth out the rubber tired marks using the same pattern making the same type coverages as the breakdown roller. Do not roll until cracks appear, let it cool. Finish rolling can continue until the temperature reaches 175F 175°F to 150F. 150°F. The finish rolling shall continue until the pavement is smooth and has the density specified above. S-1.13 Sampling Pavements for Density Samples of finished pavement shall be obtained by the contractor or the contractor’s laboratory. A minimum of one test (three cores) shall be taken for each tonnage lot represented by a Superpave Asphaltic Concrete test. Lots larger than 1200 tons shall have one set of (three cores) for each 1000 tons placed or as directed by the Engineer. The cores samples shall be taken at locations throughout the tonnage lot. The locations shall not be previously marked. The core locations shall be marked by the City Engineer after each tonnage lot placement is completed. Cores shall be at least 4 inches in diameter. Sample holes shall be backfilled by the contractor using Quikrete, Rapid Road Repair manufactured by The Quikrete Companies, Xxxxxxx Xxxxxxx, 00000, Crystex manufactured by L&M Construction Chemicals Inc., Xxxxx Xxxxxxxx, 00000 or approved equal. The top of the patch shall be sprayed black with paint. The samples shall be tested by the contractor’s laboratory to determine conformance to density and thickness. The City Engineer may require the contractor to take more samples at the contractor’s expense if the density is marginal. S-1.14 Density and Density Test Density of the compacted mixture of the surface or intermediate course shall be determined by tests made on specimens taken from the compacted course in accordance with the requirements of the previous paragraph: SAMPLING PAVEMENTS FOR DENSITY. The density shall be the average of the three cores 92% to 96% of max theoretical specific gravity of the Superpave Asphaltic Concrete test for the lot. No core shall be less than 90%. S-1.15 Weather Limitations Weather limitations in Section 611.3(b) of the Standard Specifications shall apply except that the following table shall be used. Asphalt Placement Temperature Limitations Paving Course Compacted Thickness (inches) Air Temperature (°F) Road Surface Temp. (°F) Surface All 55 60 Subsurface < 1.5 50 55 Subsurface ≥ 1.5 and < 3 40 45 Subsurface ≥ 3 30 35