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Heading: 1.1.2.2Gravel for NASA
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New to the forum with a specific question - I am working on a project for NASA at KSC in which we are tasked to find sources of gravel that can be used on their Crawlerway. Does anyone have a suggestion for sources (either general locales or specific companies) that produce hard, rounded, abrasion or fracture resistant gravel? They use it as a loose layer (1 ft thick I believe), not for concrete aggregate.

The Crawlerway is the road used to transport the launch vehicle and shuttle from the VAB to the launch pads (4-5 miles I believe). The load projected for the next generation Ares rocket is 25 million pounds. Their tests indicate that well-rounded coarse gravel produces the least amount of friction both internally and between the road and crawler tracks, hence the reason the use it loose. They currently use an Alabama river rock (river run quartzite gravel). A report from the 60s said Wisconsin glacial gravel (containing mostly igneous rock) was the best of the materials tested. I would like to track down that source but have no other info, and it’s likely that the source from the 60s is no longer in operation or the rail lines from northern Wisc have been converted to bike trails.

I appreciate the help,
Allan (a geologist in Florida, no soft-rock jokes please)



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Allan Biddlecomb


Allen,

I am interested in discussing our aggregate availability for your project. I can be reached at 504 615-9256.

Daryl LaMeer
Territory Manager
Lafarge Aggregates

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daryl lameer


Hi Allan!

I believe I have a source that would fit your requirements. I worked in the Aggregate Industry for about 10 years in the Midwest (ND, MN, WI...) and believe this is probably what you are looking for. Please conact Paul (information below). Let me know if I can help out in any other way - take care and have a great day! Jon Ellingson

Contact: Paul Hawkinson
Hawkinson Companies
218-326-6681 office
218-259-2378 cell
218-326-6682 fax

paul@hawkinsonconstruction.com

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Jon Ellingson


Allen,

We have an excellent source of high grade silica gravel in Alabama near rail. We could begin shipping to a rail terminal near the Kennedy Space Center within a few days time. Call for pricing and samples.

Stephen Vander Hart
Vice President - New Business Development & Marketing
Allstate Materials Inc.
14198 Albers Way Chino, Ca. 91710
Office (909) 627 - 3925
Fax (909) 627 - 8844
www.allstatematerials.com

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Stephen Vander Hart
 
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