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mtgoat666
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Ignore the prior advice to keep the soil wet. You want it damp, at optimum moisture content, Wet soil cannot be compacted.
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Al G
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| Quote: | Originally posted by longlegsinlapaz
| Quote: | Originally posted by Al G
malla...is that slab wire cloth that must be used anyway even with compaction grade fill. |
Not sure what you're referring to. Never seen anything like that here, there is nothing but dirt or tierra colorado used locally....depending on the
depth of the fill/compaction, typically held in place with retaining walls. No cloth involved. Locally, they even call chicken wire malla....albeit
the lightest grade! It's simply a grid of heavy gauge wire that helps prevent the cement from settling or getting major cracks. It starts out at the
bottom of a pour area, but they use a metal hook to lift it so it's closer to the mid-depth when the cement hardens.
I have lots of pics, but don't have a reduction program to post them!
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LLL.... I can tell from your comments Malla is wire cloth...it is a construction
term used to describe welded wire in a grid pattern...and yes chicken wire can be called wire cloth although it is not welded.
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Al G
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The site I am on now...progress stage. This is not wire cloth just rebar. posting is to show Visquine. Cheap insect control as well as moisture...
[Edited on 1-10-2008 by Al G]
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Al G
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Just for info
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Bajabus
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Re-bar or mesh in a slab needs to be located in the lower one 3rd or 1/4 of the slab. Pulling it into the middle makes it virtually useless unless all
you want to do is hold the cracked pieces together.
Thats why on US construction sites you see them use little feet to hold the mesh at just the right height. Then they Carefully pour and vibrate the
cement. They also do a slump test on every mixed load.
In Mexico the cement mix tends to be watery, sandy, they step all over the mesh and generally cavort about like drunken sailors while doing the
pour.....Be especially wary of them damaging any conduit or pipes in the slab. Theoretically there should be none. they should be in the compacted
soil below the slab and there should be a can or similar placed around the pipe where it comes up out of the slab so there is not contact with the
cement...Theoretically at least.
You need to keep a very close eye on them during this entire process and not be bashfull about voicing your concerns when you see something that is
not right.
Notice also the plastic vapor barrier in the photo
[Edited on 10-1-2008 by Bajabus]
"Preventive war was an invention of Hitler. Frankly I would not even listen to anyone seriously that came and talked of such a thing."
Dwight David Eisenhower
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amir
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Thank you everyone for your advise. The dirt fill is right now being compacted by MACHINE; they are keeping it damp, and they are using Termidel-48
between layers of ~ 7 centimeters rather than ~ 15 like when they had started tamping by hand.
The only one machine in Todos Santos available for rental was not going to be available until next Monday, so el jefe went to La Paz this morning and
brought one down. The crew sat idle this morning waiting for the machine, but hey, why ask you guys advise if we are not going to follow it...
Thanks everyone, again. Will be posting and asking more questions as the next emergency arises. Stay tuned...
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Al G
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Will try to post how a slab is prepped...if anyone cares...progress through the day today..
EDIT: well that didn't work
Edit: all said over 50 kb??? all under 45 kb on my machine will try again shortly...
[Edited on 1-11-2008 by Al G]
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Al G
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Here we go again...at 38kb
Edit: you guessed it...last one first
[Edited on 1-11-2008 by Al G]
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Al G
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Should have been first
Edit: I hope it is 5:00 pm somewhere...hard to do without a pacifico
I quit...that was so blurry I feel I had too many Pacificos...never happen
[Edited on 1-11-2008 by Al G]
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Al G
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Someone could make a fortune teaching dummies like me to post quality photos...
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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amir
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Al G,
I taught my crew to use a compacting machine and to use termite insecticide in the backfill.
I doubt it I could teach them to score a cement slab...
p.s. What are those white spots on the slab?
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Al G
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The grid is the rebar before the pour...
the white spotsare spacer blocks to hold the rebar at the correct height through
the pour...
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Al G
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What you think is concrete, is sand over visquine.
First the visquine then the rebar...then 3"... 1/4" fill, then when fill is is leveled they pull the rebar through the fill and place 3" blocks into
sand to get the rebar 2" high above the fill in a 6" slab. We pour tomorrow unless it pours (Rain).
Albert G
Remember, if you haven\'t got a smile on your face and laughter in your heart, then you are just a sour old fart!....
The most precious thing we have is life, yet it has absolutely no trade-in value.
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Bajabus
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Nice pictures Al...I can't stress enough the importance of having the rebar or malla in the right spot. 2" off the bottom of a 6" slab is perfect.
All too often the Malla used in common construction in Mexico is unrolled and all sorts of wavy before they start to pour. Then going around with
hooks to pull just makes a mess. In some spots it ends up near the top, in other near the middle and in the rest near the bottom against the dirt.
Plus they are wearing boots and stepping around in it while they go back and vibrate ( if they vibrate ). I cringe at some of the things I have seen.
Note that there are crews that take the time to do it right, just not very many
"Preventive war was an invention of Hitler. Frankly I would not even listen to anyone seriously that came and talked of such a thing."
Dwight David Eisenhower
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