Government Contract | Colorado
California Kneading Compactor - R-Value

Bid Information

Bid Alert No: 00000509928

Bid Title: California Kneading Compactor - R-Value

Agency Bid No. Title: B1600071

Received Date: 03/15/2016

Close Date: 05/31/2016

Purchase Type: Not Stated

Delivery Point:

Delivery Date: Not Stated

Special Notices: Questions Due By 05/20/2016 03:00 PM


Specifications include, but are not limited to:Kneading Compactor will meet the requirements and specifications as noted in ASTM D2844-07; AASHTO T190-09; and Colorado Procedure - Laboratory 3101-14, Standard Method of Test for Resistance R-Value and Expansion Pressure of Compacted Soils or Aggregates by Means of Hveem Stabilometer;1. Capable of applying an average contact pressure of 350 +/- 16 psi (2413 +/- 110 kPa) to the tamper foot and with provisions of maintaining this pressure during changes in sample height. 2. The load-time trace shall be free of "chatter" or evidence of impact-associated changes in slope 3. The rise time for application of foot pressure, in the range from 35 to 300 psi (241 to 2068 kPa), shall not be less than 0.07 nor more than 0.20 seconds. 4. The dwell time, measured at 300 psi (2068 kPa) foot pressure, shall not be less than 0.15 nor more than 0.45 seconds. 5. The pressure-release or removal time shall not be greater than 0.60 seconds. 6. The compactor shall include a counter or timer for measuring the number of tamps applied to a specimen and a mold holder for use in compacting specimens that rotates equally between tamps to give 5 to 7 tamps per revolution of the mold. The holder shall firmly restrain the mold during compaction. The base of the mold holder shall have a metal plate 3 31/32 inches (100.8 mm) in diameter and 0.5 inches (12.7 mm) high. The plate shall be an integral part of the base of the mold holder. 7. A steel disk shall be included and placed on the base of the mold holder. The disk shall be approximately 2 inches (50.8 mm) in height and 3 15/16 inches (100 mm) in diameter with a rubber disk of the same diameter by 1/8 inch (3.2 mm) thick cemented to the steel disk. 8. A mold collar as supplied by the manufacturer. 9. The compactor shall include a trough for feeding the sample into the mold in 20 increments

Bid Related Documents

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Product Code: 84581

Agency Information

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Issuing Agency: County of Weld/IPT

State: Colorado

Agency Type: State and Local

Contact: Josh Holbrook Weld County Purchasing Department, 1150 O Street Room #107, Greeley, Colorado, 80631

Phone: 970-304-6496




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