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138 APPENDIX C Simple Performance Test Specimen Fabrication System Specification

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139 NCHRP 9-29 First Article Equipment Specification for Simple Performance Test Specimen Fabrication Equipment Version 2.0 June, 29, 2007 Table of Contents Table of Contents ................................................................................................................................139 1.0 Summary .....................................................................................................................................140 2.0 Definitions.....................................................................................................................................140 3.0 Simple Performance Test Specimen Fabrication System ............................................................140 4.0 Simple Performance Test Specimen Requirements .....................................................................141 5.0 Documentation ...............................................................................................................................141 6.0 Warranty........................................................................................................................................141

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140 NCHRP 9-29 First Article Equipment Specification for Simple Performance Test Specimen Fabrication Equipment Version 2.0 June, 29, 2007 1.0 Summary 1.1 This specification describes equipment for preparing 100 mm (4 in) diameter by 150 mm (6 in ) high simple performance test specimens from 150 mm (6 in) diameter gyratory specimens. 1.2 The objective of this specification is to encourage manufacturers to develop equipment that speeds the test specimen fabrication process. The goal is to have equipment with the capability to remove nominal 100 mm (4 in) diameter by 150 mm (6 in) high test specimens from 150 mm (6 in) diameter gyratory specimens prepared in existing or future gyratory compactors. 2.0 Definitions 2.1 Gyratory Specimen. Refers to 150 mm (6 in) diameter specimens prepared in a gyratory compactor meeting the requirements of AASHTO T312. 2.2 Simple Performance Test Specimen. Refers to 100 mm (4 in) diameter by 150 mm (6 in) high specimens for use in the Flow Time, Flow Number, and Dynamic Modulus Tests. 3.0 Simple Performance Test Specimen Fabrication System 3.1 The Simple Performance Test Specimen Fabrication System shall be a complete, fully integrated system with the capability to remove a 100 mm (4 in) diameter by 150 mm (6 in) high simple performance test specimen from a nominal 150 mm (6 in) diameter gyratory specimen. 3.2 The Simple Performance Test Specimen Fabrication System shall be designed so that a skilled technician can prepare a simple performance test specimen from an existing gyratory specimen in 15 minutes or less. 3.3 The Simple Performance Test Specimen Fabrication System shall be designed to handle 150 mm (6 in) diameter gyratory specimens that are from 165 mm to 180 mm (6.5 in to 7.9 in) tall. 3.4 Acceptable cutting fluids are: air and water. If other fluids are proposed, submit data demonstrating that the fluid does not to affect the properties of asphalt. 3.5 When assembled, the Simple Performance Test Specimen Fabrication System shall occupy a foot-print no greater than 1.5 m (5 ft) by 2.4 m (8 ft).

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141 NCHRP 9-29 First Article Equipment Specification for Simple Performance Test Specimen Fabrication Equipment Version 2.0 June, 29, 2007 3.6 The Simple Performance Test Specimen Fabrication System shall operate on single phase 115 or 230 VAC 60 Hz electrical power. 3.7 When disassembled, the width of any single component shall not exceed 76 cm (30 in). 3.8 Air supply requirements shall not exceed 0.005 m3/s (10.6 ft3/min) at 850 kPa (125 psi). 4.0 Simple Performance Test Specimen Requirements 4.1 Test specimens shall be monolithic. Specimens formed by stacking or gluing pieces are not acceptable. 4.2 During the fabrication process, the test specimen shall not reach a temperature lower than 0 C (32 F) 4.3 Test specimens shall conform to the requirements of Table 1. 5.0 Documentation 5.1 A reference manual completely documenting the Simple Performance Test Specimen Fabrication System shall be provided. This manual shall include the following Chapters: 1. System Introduction. 2. Installation. 3. Specimen Preparation Instructions. 4. Preventative Maintenance. 5. Spare Parts List. 6. Drawings. 6.0 Warranty 6.1 The Specimen Fabrication Equipment shall carry a one year on-site warranty.

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142 NCHRP 9-29 First Article Equipment Specification for Simple Performance Test Specimen Fabrication Equipment Version 2.0 June, 29, 2007 Table 1. Test Specimen Specification Requirements. Item Specification Note Average Diameter 100 mm to 104 mm 1 Specimen Dimensions Standard Deviation of Diameter 0.5 mm 1 Height 147.5 mm to 152.5 mm 2 End Flatness 0.5 mm 3 End Perpendicularity 1.0 mm 4 Notes: 1. Using calipers, measure the diameter at the center and third points of the test specimen along axes that are 90 apart. Record each of the six measurements to the nearest 0.1 mm. Calculate the average and the standard deviation of the six measurements. 2. Measure the height of the test specimen in accordance with Section 6.1.2 of ASTM D 3549. 3. Using a straightedge and feeler gauges, measure the flatness of each end. Place a straight edge across the diameter at three locations approximately 120 apart and measure the maximum departure of the specimen end from the straight edge using tapered end feeler gauges. For each end record the maximum departure along the three locations as the end flatness. 4. Using a combination square and feeler gauges, measure the perpendicularity of each end. At two locations approximately 90 apart, place the blade of the combination square in contact with the specimen along the axis of the cylinder, and the head in contact with the highest point on the end of the cylinder. Measure the distance between the head of the square and the lowest point on the end of the cylinder using tapered end feeler gauges. For each end, record the maximum measurement from the two locations as the end perpendicularity.