This message is sent to multiple lists and I apologize for cross-postings.

Most roads, footpaths, and many other areas in historic and archaeological
sites have been unpaved dirt surfaces.  In many sites those surfaces have
been replaced by different types of pavement, most frequently concrete or
blacktop, to provide better access for visitors (and to be ADA compliant),
reduce erosion, dust and mud development, and reduce necessary maintenance
work.  Often this is an unsatisfactory solution since the modern pavement can
change the whole character of a site.

Two alternate approaches have been used occasionally:
- chemical consolidation of existing dirt surfaces
- pavements that simulate the appearance of dirt surfaces.

For a non-profit client, under contract from the NCPTT, I am presently
undertaking research into the current practices and experiences in the use of
consolidated or simulated dirt surfaces with the goal of developing a testing
and evaluation program for the most promising consolidation or surfacing
materials.

I would like to hear about the different approaches and materials colleagues
have been taken and about their experiences with respect to appearance,
strength, durability, maintenance requirements, installation cost,
performance under hot, cold, dry, and wet conditions, etc.  Any information
would be greatly appreciated.

Please reply off-list to [log in to unmask]

After completion of the project a summary of the findings will be posted to
the list.

Thank you in advance for your assistance.

Frank D. Preusser
Frank Preusser & Associates, Inc.
6434 Pat Avenue
West Hills, CA 91307
(818) 348-0481
fax: (818) 348-1764
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