Denver
Junior Nomad
Posts: 33
Registered: 1-19-2006
Member Is Offline
Mood: Rollin'
|
|
Concrete and Saltwater?
Is it possible to mix concrete with seawater instead of fresh? Never had reason to wonder until recently.
Thanks Nomads
The Declaration of Independence only gives you the right to pursue happiness. You have to catch it yourself. - Benjamin Franklin
|
|
|
Bruce R Leech
Elite Nomad
Posts: 6796
Registered: 9-20-2004
Location: Ensenada formerly Mulege
Member Is Offline
Mood: A lot cooler than Mulege
|
|
yes it is possible but it doesn't hold up very long.
Bruce R Leech
Ensenada
 |
|
|
jerry
Super Nomad
Posts: 1354
Registered: 10-10-2003
Location: loreto
Member Is Offline
|
|
and be sure to check your gravel and sand if there salty the cement will decentgrate in no time its a dead givaway if you see sea shells in the cement
its not gona hold up
if your going to build have the block teasted also
have a good one jerry
jerry and judi
|
|
|
djh
Senior Nomad
Posts: 936
Registered: 1-2-2005
Location: Earth mostly. Loreto, N. ID, Big Island
Member Is Offline
Mood: Mellow fellow, plays a yellow cello...
|
|
So THAT'S why one (older) section of my fence is turning into.... a beach?? 
 
djh
Its all just stuff and some numbers.
A day spent sailing isn\'t deducted from one\'s life.
Peace, Love, and Music
|
|
|
comitan
Ultra Nomad
Posts: 4177
Registered: 3-27-2004
Location: La Paz
Member Is Offline
Mood: mellow
|
|
Sea Water
8-3. Sea water and cement can be mixed with satisfactory results; however, concrete strength may be reduced by 10 to 20 percent. Salt water acts as an
accelerant much the same as calcium chloride (CaCl 2 ). Avoid using sea water in reinforced concrete if possible; but as a field expedient, decrease
the water-to-cement ratio to offset the strength loss. If the water-to-cement ratio cannot be changed, consider the following to offset strength
reduction:
If using ocean water with an average salt content, multiply the design thickness by 1.15 to obtain a thickness of equal strength.
If using water from a landlocked sea, such as the Dead Sea, with an extremely high salt content, multiply the design thickness by 1.25 to obtain a
thickness of equal strength
Strive For The Ideal, But Deal With What\'s Real.
Every day is a new day, better than the day before.(from some song)
Lord, Keep your arm around my shoulder and your hand over my mouth.
“The sincere pursuit of truth requires you to entertain the possibility that everything you believe to be true may in fact be false”
|
|
|
Pompano
Elite Nomad
Posts: 8194
Registered: 11-14-2004
Location: Bay of Conception and Up North
Member Is Offline
Mood: Optimistic
|
|
If you are looking for steady employment, use seawater in your cement. If you want a lifelong job, use beachsand also.
Get the point?
I do what the voices in my tackle box tell me.
|
|
|
Diver
Ultra Nomad
Posts: 4729
Registered: 11-15-2004
Member Is Offline
|
|
As Comitan mentions, you can increase the thickness of the concrete to achieve a specified design load carrying capacity. However, the longevity of
the concrete will also be severely compromised with salt water or salty sand. Excess salt interferes with the chemical reaction that "sets" the
concrete. Excess salt deposits will also remain within the cured concrete causing the surface to deteriorate more quickly when subjected to moisture;
this condition will also prevent long-term bonding of any paint or sealant. Not to mention that excess salts can speed deterioration of any rebar
within the pour.
Don't do it !
|
|
|
rocknrog
Newbie
Posts: 7
Registered: 5-20-2006
Member Is Offline
|
|
concrete and saltwater
no the don't mix, don't do it
|
|
|
shari
Select Nomad
Posts: 13048
Registered: 3-10-2006
Location: bahia asuncion, baja sur
Member Is Offline
Mood: there is no reality except the one contained within us "Herman Hesse"
|
|
just a suggestion...evrywhere we look cement houses and walls are crumbling here on the coast after only a few years....so we build everything new out
of fieldstone now which lasts forever, plus you don't have to paint it and it looks gorgeous...with the price of blocks, cement, and especially rebar
(super expensive here), rock works out to be about the same price per meter.
|
|
|
rts551
Elite Nomad
Posts: 6699
Registered: 9-5-2003
Member Is Offline
|
|
Shari
While I agree that the rock is the way to go (and plenty of it around the area)... the builders have learned to use better sand in their concrete
here in Abreojos... NO BEACH SAND.. and it is lasting longer. My house is showing no wear after ten years. The block now comes from Vizcaino with a
better quality than what we used to have... and there is a cement plaster coating over the block. Quality is getting much better than when I started
15 years ago.
|
|
|
cat127
Junior Nomad
Posts: 50
Registered: 7-23-2006
Location: Hawaii
Member Is Offline
|
|
Does any use 3/4" rock when pouring concrete?
Fate Smiles as Destiny laughs!
|
|
|
jerry
Super Nomad
Posts: 1354
Registered: 10-10-2003
Location: loreto
Member Is Offline
|
|
cat127 most of the gravel is screened not crushed the graval for makin block is about 3/4 -- its taken out of the arroyos and not very clean
jerry and judi
|
|
|
Santiago
Ultra Nomad
Posts: 3512
Registered: 8-27-2003
Member Is Offline
|
|
| Quote: | Originally posted by Pompano
If you are looking for steady employment, use seawater in your cement. If you want a lifelong job, use beachsand also.
Get the point? |
As soon as I saw the thread title I just knew this would bring Pompano in! 
|
|
|
Hook
Elite Nomad
Posts: 9010
Registered: 3-13-2004
Location: Sonora
Member Is Offline
Mood: Inquisitive
|
|
Yeah, well
it brought him in about 8 months ago.
I miss the guy. I guess he no longer lives in Baja. So what! He has a wealth of info on the place still.
Pompano....COME BACK !!!!!!!
|
|
|
![[*]](images/xmbforum/default_icon.gif){kind=icon}
