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APPENDIX C
Simple Performance Test Specimen Fabrication
System Specification
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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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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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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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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.
