[Greenbuilding] Redoing all floors
RT
Archilogic at yahoo.ca
Thu Jul 28 20:29:57 CDT 2011
On Thu, 28 Jul 2011 11:27:20 -0400, Ktot (g) <ktottotc at gmail.com> wrote:
> ***NO water was added at the site. The concrete came straight out of the
> concrete truck,
For as long as I can remember (and I've been around long enough that I
remember milk in glass bottles being delivered to my parents' home via a
horse-drawn wagon) all of the concrete trucks (transit mixers) I've seen
have carried their own water and water hoses.
Also, in addition to "WWT*", another of the most frequently uttered
phrases by concrete workers on residential construction sites when the
first see the concrete coming down the chute is "MORE WATER!" a request
that is invariably and unquestioningly complied to by an obliging truck
driver.
You might want to Google "concrete mix proportions" and/or,
"water-to-cement
ratio" to see why this is not a good idea.
> what is "unglazed, fully vitrified porcelain"?
The Latin root "vitreum" and the French word for glass (vitere) are pretty
good clues as to what the vitrification process yields.
Fully-vitrified porcelain (or similar concoctions ie "Graniti Fiandre"
being one product) is almost glass-lie -- ie the same consistency
throughout the body of the material and fully
impervious to water.
ie If you cut it, you can grind and polish the cut edge to a finished edge
so you can leave it exposed and the material can be used in extreme
(including freezing outdoor) service conditions.
Whereas tiles that are not fully vitrified have a soft core with only a
very thin, hardened surface layer, usually with a glaze to protect the
underlying material. If that hardened surface layer is chipped, the
underlying softer core
material being exposed, ultimately leads to the tile needing to be
replaced.
[ * WWT = "Whoa! WHOA!!! TABERNAC !!!!" (or its equivalents in
Portuguese, Spanish etc.), usually almost immediately preceded by an
episode of a series of curious arm and hand movements to a driver trying
to back up a huge truck blind, on a site full of obstructions and hazards
]
--
=== * ===
Rob Tom
Kanata, Ontario, Canada
< A r c h i L o g i c at Y a h o o dot C A >
(manually winnow the chaff from my edress if you hit REPLY)
More information about the Greenbuilding
mailing list