Procurement Summary
Country: USA
Summary: Test and Apply Stone Conservation Methods to Stabilize Disintegrating Petrified Stumps
Deadline: 19 Apr 2018
Posting Date: 11 Apr 2018
Other Information
Notice Type: Tender
TOT Ref.No.: 22331994
Document Ref. No.: P18AS00130
Competition: ICB
Financier: Self Financed
Purchaser Ownership: -
Tender Value: Refer Document
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Login to see detailsTender Details
Tender are invited for Test and Apply Stone Conservation Methods to Stabilize Disintegrating Petrified Stumps
CFDA Number : 15.945 -- Cooperative Research and Training Programs - Resources of the National Park System
Cost Sharing or Matching Requirement : No
Estimated Total Program Funding : $49, 800
Closing Date for Applications: Apr 19, 2018
Posted Date : Apr 10, 2018
Description: (1) This project will examine and test the feasibility of stabilizing large petrified redwood stumps using established methods of stone conservation. The petrified stumps at Florissant Fossil Beds National Monument (FLFO) are the fundamental resource of the park. Of the approximately 30 stumps, five of these are actively deteriorating due to cracking, spalling and the loss of large fragments of petrified wood. Several stumps have many deep multidimensional fractures apparently resulting from the use of dynamite during their original excavation, and subsequent weathering including freeze-thaw cycling. They are exposed to accelerated natural and man-made weathering processes. Currently, vulnerable portions of the stumps are held in place only by steel banding that keeps loose fragments together. Risks to the stumps persist due to the combined action of freeze-thaw (loosening of fragments and spalling), gravity (falling of fragments), biological interactions (fracturing and defacement as a result of factors such as plant growth, burrows, and excrement), and theft (loss of fragments that are within reach of visitors). Possible ground salts activated through moisture, may also be a factor.
Documents
Tender Notice