Crescent wrenches (was: Nomenclature (was: NEXT Color Printer find

From: Don Maslin <>
Date: Sat Jan 5 12:49:17 2002

On Fri, 4 Jan 2002, Lawrence Walker wrote:

> Asphalt when subjected to low temperatures will buckle when temperatures
> get milder. Likely the reason most main roads out here on the Canadian
> prairies are laid in cement slabs with a space between them.
> Lawrence

... So that the whole slab tips when the water that enters the space
freezes. Some of us older folks remember when Canada's approach to
frost heaving was gravel roads - much easier to repair!

                                                 - don
Received on Sat Jan 05 2002 - 12:49:17 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:34:52 BST