Santiago
Ultra Nomad
Posts: 3512
Registered: 8-27-2003
Member Is Offline
|
|
How many bags of cemento
will be needed for an 8'X26' patio slab with 2X4 forms, shovel footings at perimeter? Bags are the typical 94 bags.
|
|
|
jureal
Nomad
Posts: 111
Registered: 9-8-2006
Location: Torrance, CA
Member Is Offline
|
|
Why not use the concrete calculator.
http://www.quikrete.com/calculator/main.asp
You have to adjust for the size of bags used and for the footings.
|
|
|
bledito
Nomad
Posts: 420
Registered: 7-6-2013
Member Is Offline
|
|
google concrete calculator
|
|
|
durrelllrobert
Elite Nomad
Posts: 7393
Registered: 11-22-2007
Location: Punta Banda BC
Member Is Offline
Mood: thriving in Baja
|
|
a 94 lb. bag of cement is 1 cubic foot of bulk material. For a 3/4" maximum coarse aggregate, the mixture would be 1 part portland cement, 2 1/2 parts
sand, 2 1/2 parts coarse aggregate, and 1/2 part water. So this mixture fills 6 cubic ft. (water doesn't count) and your slab requires 69 - 1/3 cubic
ft for a 4" thickness. You need to buy eleven 94 lb bags.
Bob Durrell
|
|
|
woody with a view
PITA Nomad
Posts: 15939
Registered: 11-8-2004
Location: Looking at the Coronado Islands
Member Is Offline
Mood: Everchangin'
|
|
add 5 bags for the thickened edges, and just in case.
|
|
|
Santiago
Ultra Nomad
Posts: 3512
Registered: 8-27-2003
Member Is Offline
|
|
Sigh, I was told 4 or 5 and got 8 as it didn't seem right to me. 94 pounds is a lot heavier than I remember......
|
|
|
woody with a view
PITA Nomad
Posts: 15939
Registered: 11-8-2004
Location: Looking at the Coronado Islands
Member Is Offline
Mood: Everchangin'
|
|
it takes about 2.5-3 bags to mix into a full wheel barrow. look at the area and you can figger pretty close.
4 or 5?  one more trip and you're golden!
|
|
|
liknbaja127
Nomad
Posts: 463
Registered: 1-17-2012
Member Is Offline
|
|
Bob is right on the cement, but you do need the sand and rock to mix with
the cement!
|
|
|
Justbozo
Nomad
Posts: 139
Registered: 11-20-2012
Location: Lake Michigan/Bahia Concepcion
Member Is Offline
Mood: Got my little stone hut on the bay
|
|
Last winter my mason was slinging mud for 6 weeks and never needed more than 3 bags
...at a time!!!
Man that was a lot of trips!
|
|
|
larryC
Super Nomad
Posts: 1496
Registered: 8-11-2008
Location: BoLA
Member Is Offline
|
|
I used 250 bags to pour my garage slab and walk way around the garage. Ponsonia can go get more if he runs out during your job.
Larry
Off grid, 12-190 watt evergreen solar panels on solar trackers, 2-3648 stacked Outback inverters, 610ah LiFePo4 48v battery bank, FM 60 and MX60
Outback charge controllers, X-240 Outback transformer for 240v from inverters, 6500 watt Kubota diesel generator.
|
|
|
akshadow
Nomad
Posts: 287
Registered: 2-1-2007
Member Is Offline
|
|
| Quote: | Originally posted by Santiago
Sigh, I was told 4 or 5 and got 8 as it didn't seem right to me. 94 pounds is a lot heavier than I remember...... |
Maybe it is because you are using Mexican bags. at least in San Felipe they are 50 k bags which means they weigh 110 lbs
Ron San Felipe Oct, Nov. Feb. Mar. April. remainder in Juneau Ak
|
|
|
![[*]](images/xmbforum/default_icon.gif){kind=icon}
