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Experimental Product (23 CFR 635.411(a)(3)) - Sample Experimental Work Plan
U. S. Department Of Transportation
October 27, 2008
IN REPLY REFER TO: HNG-AS
Route 57 Bridge Over Merrill Creek
N. G. Neer
Dear Mr. Neer:
We have reviewed your request for the use of the following proprietary item: Micro-Texture overlay manufactured by TTT Paving Products, Inc. We concur with the use of this proprietary item, based on 23 CFR 635.411(a)(3), for research or experimental purposes. If you have any questions, please feel free to contact me at 888-555-1212.
cc: RF, HNG, PF
State of Any State
New Technologies and Products Unit PIF – Micro-Texture Rte. 57 Bridge Replacement
October 9, 2008
C. N. Crete
Attention: S. Phalt
Dear Mr. Crete:
The following work plan is submitted for your review and comments.
With reference to Title 23 CFR 635.411 (a) (3), Experimental Products, and as part of the ongoing evaluation of new technologies and products in support of our Structural Engineering and Materials units, we wish to conduct a field demonstration using a proprietary friction enhancing, surface sealing and cosmetic treatment material for bridge decks and pavements called Micro-Texture manufactured by TTT Paving Products, Inc.. The project location is Route 57 1 B Bridge over Merrill Creek in Warren County. In addition to providing safety and performance enhancements, the use of this material will also satisfy a request by the community to provide a deck pavement color that will match the surrounding pavements.
The objective of the field demonstration is to determine the effectiveness of the Micro-Texture in providing a durable friction course, ability to seal the bridge deck to prevent premature deterioration due to chloride intrusion and to assess color retention and general durability.
TEST SITE DESCRIPTION & LOCATION
Route: Replacement of Route 57 Bridge over Merrill Creek
PRODUCT DESCRIPTION (from manufacturer's product brochure)
Micro-Texture is a 2 part, 100% solids epoxy hybrid/amine cured polymer resin which has a top dressing of highly skid-resistant aggregate such as Bauxite or Granite. This provides a tough, waterproof, durable, and skid-resistant bonded overlay. The product is machine-applied but can be hand-applied where necessary onto asphalt, concrete, and metal surfaces to provide a highly durable, long lasting and skid resistant surface.
The advantages and benefits of using this device include:
The New Technologies and Products Section will conduct the following:
The New Technologies and Products Unit will prepare a memorandum report documenting the construction phase of the study and a suitable final report. The latter will include recommendations for future use and construction and material specifications for Department review and FHWA approval.
Typical application cost of Micro-Texture is $4/square foot versus $3/square foot for saw-cutting. However, for demonstration purposes, the product manufacturer, TTT Paving Products, Inc., has agreed to accept the current contracted bid price for saw-cutting of $2650 ($25/Sq Meter) for this project.
N. G. Neer