1. Specifications (Gyratory Compactor).docx
DOCX document 15 KB Posted
- Attached to
- Gyratory Compactor Federal contract opportunity
- Solicitation number
- FA441724Q0293
About this file
This document contains the technical specifications for a Superpave Gyratory Compactor required under a federal contract opportunity. The key details are:
The Superpave Gyratory Compactor must meet the specifications outlined in ASTM D6925-23, including requirements for the reaction frame, gyration drive system, loading system, height measurement, and data recording capabilities. The compactor must be capable of applying a constant vertical force to provide a specified compaction pressure during the first 5 gyrations and the remainder of the process. It must also continuously measure and record the specimen height per gyration.
The related federal contract opportunity is for the procurement of a Gyratory Compactor, issued by the Department of the Air Force Special Operations Command. The solicitation number is FA441724Q0293. No other details about the contract opportunity are provided in the document.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Solicitation - FA441724Q0293.pdf | ||
| RFQ - Gyratory Compactor.pdf |
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Text version
Superpave Gyratory Compactor Requirements Apparatus must meet the following specifications outlined in ASTM D6925-23, Standard Test Method for Preparation and Determination of the Relative Density of Asphalt Mix Specimens by Means of the Superpave Gyratory Compactor:
“5. Apparatus
5.1 Superpave Gyratory Compactor—A compactor comprised of the following system components: (1) reaction frame and drive system, (2) loading system, loading ram, and pressure indicator, and (3) recording system for height measurement and number of gyrations.
5.1.1 The reaction frame shall provide a structure against which the compaction pressure can be applied when compacting specimens.
5.1.2 The compactor shall be designed to gyrate the mold at a constant angle of gyration during the compaction process. An internal angle of gyration of 20.25 6 0.35 mrad (1.16 6 0.02°) as determined by Test Method D7115 shall be utilized.
5.1.3 The gyration drive system shall be capable of gyrating the specimen at a rate of 0.5 6 0.0083 Hz (30.0 6 0.5 gyrations per minute).
5.1.4 The loading system, ram, and force indicator shall be capable of providing and measuring a constant vertical force to provide an applied pressure of 600 6 60 kPa during the first five gyrations and 600 6 18 kPa during the remainder of the compaction process. The applied pressure is defined as the applied force divided by the area of the nominal mold diameter (150 mm).
5.1.5 The axis of the loading ram shall be perpendicular to the platens of the compactor.
5.1.6 The height measurement and recording system shall be capable of continuously measuring and recording the height of the specimen during the compaction process to the nearest 0.1 mm. The height shall be recorded once per gyration.
5.1.7 The system shall record test information such as specimen heights per gyration. This may be accomplished through data acquisition or printing.
5.1.8 The system shall be capable of stopping at a specified number of gyrations or at a specified height through automatic control or operator input.”
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