Commander, U. S. Army Engineer Waterways Experiment Station, ATTN: CEWES-CT-C, 3909 Halls Ferry Rd., Vicksburg, MS 39180- 6199

66 -- FURNISH AND DELIVER ONE (1) DYNAMIC SHEAR RHEOMETER SOL DACA39-95-R-0051 DUE 053195 POC Tommy James, 601-634-3171 Furnish and deliver F.O.B., Waterways Experiment Station, one (1) Dynamic Shear Rheometer (DSR). The following features are required: capability of performing controlled stress and strain experiments from at least 1E-5 to 90 HZ; usable torque range should extend from at least 0.001 to 50 millinewton-meters for liquids and solids testing; 8mm and 25mm parallel plate measuring systems with the capability for upgrade to perform rheological measurements of liquids and gels; automated gap setting for precise gap control from experiment to experiment as well as autogap zeroing; automated thermal gap compensation to account for volume changes of the sample and measuring system during the experiment; normal force measurement that does not interfere with the measured torque and ranges from at least 1- 2000 grams with precision of 0.1 gram; the normal force feature must be capable of maintaining a user-defined normal force during the course of the capable of maintaining a user-defined normal force during the course of the experiments; position range from at least 5E-5 to 6.28 radians/sec; an active inertia compensation\correction; the ability to run the DSR/SHRP specification tests on asphalt; software must be capable of exporting data in an ASCII format and must contain a module for determination of the requirements set forth by the SHRP (Strategic Highway Research Program) for DSR testing; temperature range capability using conductive heating/cooling from at least - 150 to 400 deg. C with precision of + or - 0.1 deg. C and heating rates of at least 20 deg. to temperature calibration features such that the temperature recorded in the data files is the accurate temperature based on an external calibration. It is anticipated that a firm, fixed price contract will be awarded as a result of this solicitation. DACA39-95-R-0051 opening on or about May 31, 1995. Specifications are available at no charge. All responsible sources may submit a proposal which will be considered. (0111)

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