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- Path: sparky!uunet!wupost!uwm.edu!rutgers!ub!acsu.buffalo.edu!ubvmsb.cc.buffalo.edu!v087mxgb
- From: v087mxgb@ubvmsb.cc.buffalo.edu (Shawn E Thompson)
- Newsgroups: sci.engr
- Subject: Re: Green Sand
- Message-ID: <Bu0zKz.LnI@acsu.buffalo.edu>
- Date: 3 Sep 92 23:22:00 GMT
- References: <1992Sep3.154810.27739@umr.edu> <24560@oasys.dt.navy.mil>
- Sender: nntp@acsu.buffalo.edu
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- Organization: University at Buffalo
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- In article <24560@oasys.dt.navy.mil>, hanners@oasys.dt.navy.mil (Robert Hanners) writes...
- >In sci.engr, quopingl@cs.umr.edu (Quo-Ping Lin) writes:
- >>the sand as "green sand." Dose anyone knows where the word "green" came
- >>from? It looks black for me.
- >I'll take a crack at this although it's been 30 years since I've been
- >exposed to the topic. As I recall, "green-sand" is sand containing a small
- >amount of clay and moisture to permit packing and provide some strength.
- >The term "green" thus refers to new or not fully processed. "Dry-sand",
- >on the other hand, is sand and linseed oil or other resins that is packed,
- >then dried and/or baked to give much stronger properties such as needed
- >for cores.
-
- "green" refers to uncured (wet) as in "green" concrete...
-
-
- Shawn E. Thompson | Project Engineer/Mgr (716)891-3375
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