Re: [hobbicast] Digest Number 306
- --- Bill McJunkin <wmcj@...> wrote:
>i di some anchors in rock with sulphur once,1971 ithink, and they are still there
Just to keep things going I can think of a couple of
> other things that=====
> expand on cooling or freezing. . . Natural rubber
> and molten sulpher
> (very slightly). I have used both sulpher and a
> mixture of sulpher and
> carbon black, melted and poured into anchor holes in
> stone and concrete
> to make very strong anchors. This past week I
> happened to find some
> 1.25" steel cables that were anchored in granite
> with sulpher over forty
> years ago. I believe that bismuth has the greatest
> expansion of the
> solid materials.
> Bill McJunkin N6FAB wmcj@...
> That which lingers in your mind might be lost
> http://www.jps.net/wmcj/index.html Apprentice
> http://www.jps.net/mcjunkin/index.htm John McJunkin
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The Texas Towman --- aspiring sailor
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